A highly reactive aldehyde gas formed by oxidation or incomplete combustion of hydrocarbons. In solution, it has a wide range of uses: in the manufacture of resins and textiles, as a disinfectant, and as a laboratory fixative or preservative. Formaldehyde solution (formalin) is considered a hazardous compound, and its vapor toxic. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p717)
A colorless, flammable liquid used in the manufacture of FORMALDEHYDE and ACETIC ACID, in chemical synthesis, antifreeze, and as a solvent. Ingestion of methanol is toxic and may cause blindness.
Oxidoreductases that are specific for ALDEHYDES.
Agents employed in the preparation of histologic or pathologic specimens for the purpose of maintaining the existing form and structure of all of the constituent elements. Great numbers of different agents are used; some are also decalcifying and hardening agents. They must quickly kill and coagulate living tissue.
The application of smoke, vapor, or gas for the purpose of disinfecting or destroying pests or microorganisms.
Substances used on inanimate objects that destroy harmful microorganisms or inhibit their activity. Disinfectants are classed as complete, destroying SPORES as well as vegetative forms of microorganisms, or incomplete, destroying only vegetative forms of the organisms. They are distinguished from ANTISEPTICS, which are local anti-infective agents used on humans and other animals. (From Hawley's Condensed Chemical Dictionary, 11th ed)
One of the protein CROSS-LINKING REAGENTS that is used as a disinfectant for sterilization of heat-sensitive equipment and as a laboratory reagent, especially as a fixative.
Tumors or cancer of the NOSE.
Derivatives of formic acids. Included under this heading are a broad variety of acid forms, salts, esters, and amides that are formed with a single carbon carboxy group.
The destroying of all forms of life, especially microorganisms, by heat, chemical, or other means.
Water in its gaseous state. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Organic compounds containing a carbonyl group in the form -CHO.
A product of hard secondary xylem composed of CELLULOSE, hemicellulose, and LIGNANS, that is under the bark of trees and shrubs. It is used in construction and as a source of CHARCOAL and many other products.
A colorless, flammable liquid used in the manufacture of acetic acid, perfumes, and flavors. It is also an intermediate in the metabolism of alcohol. It has a general narcotic action and also causes irritation of mucous membranes. Large doses may cause death from respiratory paralysis.
Drugs that act locally on cutaneous or mucosal surfaces to produce inflammation; those that cause redness due to hyperemia are rubefacients; those that raise blisters are vesicants and those that penetrate sebaceous glands and cause abscesses are pustulants; tear gases and mustard gases are also irritants.
Air pollutants found in the work area. They are usually produced by the specific nature of the occupation.
A subclass of enzymes which includes all dehydrogenases acting on primary and secondary alcohols as well as hemiacetals. They are further classified according to the acceptor which can be NAD+ or NADP+ (subclass 1.1.1), cytochrome (1.1.2), oxygen (1.1.3), quinone (1.1.5), or another acceptor (1.1.99).
The contamination of indoor air.
A genus of gram-negative, aerobic, facultatively methylotrophic rods occurring singly or occasionally in rosettes. Members of this genus are usually motile and are isolated from soil, dust, fresh water, lake sediments, leaf surfaces, rice, air, and hospital environments. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
The study of ENVIRONMENTAL POLLUTION and the toxic effects of ENVIRONMENTAL POLLUTANTS on the ECOSYSTEM. The term was coined by Truhaut in 1969.
The exposure to potentially harmful chemical, physical, or biological agents by inhaling them.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
Flammable, amorphous, vegetable products of secretion or disintegration, usually formed in special cavities of plants. They are generally insoluble in water and soluble in alcohol, carbon tetrachloride, ether, or volatile oils. They are fusible and have a conchoidal fracture. They are the oxidation or polymerization products of the terpenes, and are mixtures of aromatic acids and esters. Most are soft and sticky, but harden after exposure to cold. (From Grant & Hackh's Chemical Dictionary, 5th ed & Dorland, 28th ed)
An anti-infective agent most commonly used in the treatment of urinary tract infections. Its anti-infective action derives from the slow release of formaldehyde by hydrolysis at acidic pH. (From Martindale, The Extra Pharmacopoeia, 30th ed, p173)
Gram-negative, capsulated, gas-producing rods found widely in nature. Both motile and non-motile strains exist. The species is closely related to KLEBSIELLA PNEUMONIAE and is frequently associated with nosocomial infections
The aggregate enterprise of manufacturing and technically producing chemicals. (From Random House Unabridged Dictionary, 2d ed)
A family of gram-negative, aerobic bacteria utilizing only one-carbon organic compounds and isolated from in soil and water.
The technique of using FIXATIVES in the preparation of cytologic, histologic, or pathologic specimens for the purpose of maintaining the existing form and structure of all the constituent elements.
Hospital department which administers and provides pathology services.
Compounds based on 2-amino-4-hydroxypteridine.
The mucous lining of the NASAL CAVITY, including lining of the nostril (vestibule) and the OLFACTORY MUCOSA. Nasal mucosa consists of ciliated cells, GOBLET CELLS, brush cells, small granule cells, basal cells (STEM CELLS) and glands containing both mucous and serous cells.
A species of METHYLOBACTERIUM which can utilize acetate, ethanol, or methylamine as a sole carbon source. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
Ribulose substituted by one or more phosphoric acid moieties.
Reagents with two reactive groups, usually at opposite ends of the molecule, that are capable of reacting with and thereby forming bridges between side chains of amino acids in proteins; the locations of naturally reactive areas within proteins can thereby be identified; may also be used for other macromolecules, like glycoproteins, nucleic acids, or other.
Diseases caused by factors involved in one's employment.
Those customs and ceremonies pertaining to the dead.
The simplest saturated hydrocarbon. It is a colorless, flammable gas, slightly soluble in water. It is one of the chief constituents of natural gas and is formed in the decomposition of organic matter. (Grant & Hackh's Chemical Dictionary, 5th ed)
Supplies used in building.
Methods of preparing cells or tissues for examination and study of their origin, structure, function, or pathology. The methods include preservation, fixation, sectioning, staining, replica, or other technique to allow for viewing using a microscope.
Any substance in the air which could, if present in high enough concentration, harm humans, animals, vegetation or material. Substances include GASES; PARTICULATE MATTER; and volatile ORGANIC CHEMICALS.
Flavoproteins that catalyze reversibly the reduction of carbon dioxide to formate. Many compounds can act as acceptors, but the only physiologically active acceptor is NAD. The enzymes are active in the fermentation of sugars and other compounds to carbon dioxide and are the key enzymes in obtaining energy when bacteria are grown on formate as the main carbon source. They have been purified from bovine blood. EC 1.2.1.2.
A zinc-containing enzyme which oxidizes primary and secondary alcohols or hemiacetals in the presence of NAD. In alcoholic fermentation, it catalyzes the final step of reducing an aldehyde to an alcohol in the presence of NADH and hydrogen.
A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471).
Chemical substances with sperm immobilizing activity used as topically administered vaginal contraceptives.
Enzymes that catalyze a reverse aldol condensation. A molecule containing a hydroxyl group and a carbonyl group is cleaved at a C-C bond to produce two smaller molecules (ALDEHYDES or KETONES). EC 4.1.2.
Substances that increase the risk of NEOPLASMS in humans or animals. Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included.
A phylum of ARCHAEA comprising at least seven classes: Methanobacteria, Methanococci, Halobacteria (extreme halophiles), Archaeoglobi (sulfate-reducing species), Methanopyri, and the thermophiles: Thermoplasmata, and Thermococci.
2-Hydroxy-N-phenylbenzamides. N-phenyl substituted salicylamides. Derivatives have been used as fungicides, anti-mildew agents and topical antifungal agents. In concentrated form may cause irritation of skin and mucous membranes.
Tungsten. A metallic element with the atomic symbol W, atomic number 74, and atomic weight 183.85. It is used in many manufacturing applications, including increasing the hardness, toughness, and tensile strength of steel; manufacture of filaments for incandescent light bulbs; and in contact points for automotive and electrical apparatus.
Activities associated with the disposition of the dead. It excludes cultural practices such as funeral rites.

Carbon 13 NMR study of nonenzymatic reactions of pyridoxal 5'-phosphate with selected amino acids and of related reactions. (1/2410)

Carbon 13 nuclear magnetic resonance spectroscopy has been used to monitor the nonenzymatic reactions of pyridoxal 5'-phosphate with glycine, alanine, valine, serine, and with several other model compounds. Isotopically enriched amino acids were employed so that low concentrations could be utilized while still allowing relatively rapid acquisition of spectral data. The results for alanine and serine are particularly noteworthy in that alanine is deaminated to pyruvate and pyruvate is aminated to alanine, but contrary to the enzymatic reactions of various serine dehydratases wherein serine is converted to pyruvate, the nonenzymatic reaction utilizing serine results in hydroxypruvate rather than pyruvate formation. In the reverse reaction, hydroxypyruvate is aminated to serine but very inefficiently relative to the amination of pyruvate to alanine. The experimental results have been formulated into a proposed reaction mechanism for deamination of amino acids by pyridoxal-P.  (+info)

Hierarchical cluster analysis applied to workers' exposures in fiberglass insulation manufacturing. (2/2410)

The objectives of this study were to explore the application of cluster analysis to the characterization of multiple exposures in industrial hygiene practice and to compare exposure groupings based on the result from cluster analysis with that based on non-measurement-based approaches commonly used in epidemiology. Cluster analysis was performed for 37 workers simultaneously exposed to three agents (endotoxin, phenolic compounds and formaldehyde) in fiberglass insulation manufacturing. Different clustering algorithms, including complete-linkage (or farthest-neighbor), single-linkage (or nearest-neighbor), group-average and model-based clustering approaches, were used to construct the tree structures from which clusters can be formed. Differences were observed between the exposure clusters constructed by these different clustering algorithms. When contrasting the exposure classification based on tree structures with that based on non-measurement-based information, the results indicate that the exposure clusters identified from the tree structures had little in common with the classification results from either the traditional exposure zone or the work group classification approach. In terms of the defining homogeneous exposure groups or from the standpoint of health risk, some toxicological normalization in the components of the exposure vector appears to be required in order to form meaningful exposure groupings from cluster analysis. Finally, it remains important to see if the lack of correspondence between exposure groups based on epidemiological classification and measurement data is a peculiarity of the data or a more general problem in multivariate exposure analysis.  (+info)

A new rapid technique for the fixation of thyroid gland surgical specimens. (3/2410)

One of the main diagnostic problems in thyroid pathology is to distinguish between follicular adenoma and follicular carcinoma. Thorough sampling of the nodule's capsule is recommended in order to identify capsular invasion. However, during the hardening of the tissue, by the usual fixatives the capsule shrinks and rolls downwards and sometimes the capsule separates from the remaining tissue. The present work evaluates the use of "Lymph Node Revealing Solution" (LNRS) for the rapid fixation (2h) of different thyroid lesions as compared to that of formalin. Fifty-one unselected consecutive cases of thyroid nodules, which included various benign and malignant lesions, were examined. Each specimen was cut in two equal parts; one was fixed in LNRS, the other in formalin. Fixation in LNRS for 2 hours gave adequate results in sectioning and staining of the tissue, and excellent immunostains. Its advantage over formalin is the conservation of the natural relationship between the capsule and the rest of the tissue, on the same plane, as well as the short time required for the final diagnosis.  (+info)

Characterization of socio-psychological stress-induced antinociception in the formalin test in mice. (4/2410)

The antinociceptive effect induced by exposure to socio-psychological (PSY) stress using a communication box was assessed by the formalin test in mice, compared with those by exposure to footshock (FS) stress and forced swimming (SW) stress. After the termination of stress exposure, whereas exposure to FS- and SW-stress resulted in the attenuation of the formalin-induced biphasic pain response over 15 min, no appreciable antinociceptive effect was found in the case of PSY stress. When exposure to PSY stress was started during the period of early or late phase of pain after the formalin injection, the antinociceptive effect was maintained for 5-15 min; however, further exposure to PSY stress was not effective for producing antinociception. In the tail-pinch test, likewise, exposure to PSY stress longer than 5 min rather decreased the intensity of antinociception. We conclude that PSY stress in this tonic pain paradigm produces antinociception, but further continuous exposure to the emotional stress caused mice to become recuperative even in such a fear-inducing situation.  (+info)

Immunofluorescence detection of ezrin/radixin/moesin (ERM) proteins with their carboxyl-terminal threonine phosphorylated in cultured cells and tissues. (5/2410)

Ezrin/radixin/moesin (ERM) proteins are thought to play an important role in organizing cortical actin-based cytoskeletons through cross-linkage of actin filaments with integral membrane proteins. Recent in vitro biochemical studies have revealed that ERM proteins phosphorylated on their COOH-terminal threonine residue (CPERMs) are active in their cross-linking activity, but this has not yet been evaluated in vivo. To immunofluorescently visualize CPERMs in cultured cells as well as tissues using a mAb specific for CPERMs, we developed a new fixation protocol using trichloroacetic acid (TCA) as a fixative. Immunoblotting analyses in combination with immunofluorescence microscopy showed that TCA effectively inactivated soluble phosphatases, which maintained the phosphorylation level of CPERMs during sample processing for immunofluorescence staining. Immunofluorescence microscopy with TCA-fixed samples revealed that CPERMs were exclusively associated with plasma membranes in a variety of cells and tissues, whereas total ERM proteins were distributed in both the cytoplasm and plasma membranes. Furthermore, the amounts of CPERMs were shown to be regulated in a cell and tissue type-dependent manner. These findings favored the notion that phosphorylation of the COOH-terminal threonine plays a key role in the regulation of the cross-linking activity of ERM proteins in vivo.  (+info)

Antinociceptive properties of the new alkaloid, cis-8, 10-di-N-propyllobelidiol hydrochloride dihydrate isolated from Siphocampylus verticillatus: evidence for the mechanism of action. (6/2410)

The antinociceptive action of the alkaloid cis-8, 10-di-n-propyllobelidiol hydrochloride dehydrate (DPHD), isolated from Siphocampylus verticillatus, given i.p., p.o., i.t., or i.c.v., was assessed in chemical and thermal models of nociception in mice, such as acetic acid-induced abdominal constriction, formalin- and capsaicin-induced licking, and hot-plate and tail-flick tests. DPHD given by i.p., p.o., i.t., or i.c.v. elicited significant and dose-related antinociception. At the ID50 level, DPHD was about 2- to 39-fold more potent than aspirin and dipyrone, but it was about 14- to 119-fold less potent than morphine. Its analgesic action was reversed by treatment of animals with p-chlorophenylalanine, naloxone, cyprodime, naltrindole, nor-binaltrorphimine, L-arginine, or pertussis toxin. Its action was also modulated by adrenal-gland hormones but was not affected by gamma-aminobutyric acid type A or type B antagonist, bicuculine, or phaclofen, nor was it affected by glibenclamide. DPHD, given daily for up to 7 days, did not develop tolerance to itself nor did it induce cross-tolerance to morphine. However, animals rendered tolerant to morphine presented cross-tolerance to DPHD. The antinociception of DPHD was not secondary to its anti-inflammatory effect, nor was it associated with nonspecific effects such as muscle relaxation or sedation. DPHD, in contrast to morphine, did not decrease charcoal meal transit in mice, nor did it inhibit electrical field stimulation of the guinea pig ileum or mouse vas deferens in vitro. Thus, DPHD produces dose-dependent and pronounced systemic, spinal, and supraspinal antinociception in mice, including against the neurogenic nociception induced by formalin and capsaicin. Its antinociceptive effect involves multiple mechanisms of action, namely interaction with mu, delta, or kappa opioid systems, L-arginine-nitric oxide and serotonin pathways, activation of Gi protein sensitive to pertussis toxin, and modulation by endogenous glucocorticoids.  (+info)

Vaccination with experimental feline immunodeficiency virus vaccines, based on autologous infected cells, elicits enhancement of homologous challenge infection. (7/2410)

Cats were vaccinated with fixed autologous feline immunodeficiency virus (FIV)-infected cells in order to present viral proteins to the immune system of individual cats in an MHC-matched fashion. Upon vaccination, a humoral response against Gag was induced. Furthermore, virus-neutralizing antibodies were detected in a Crandell feline kidney cell-based neutralization assay, but not in a neutralization assay based on primary peripheral blood mononuclear cells. Despite the induction of these FIV-specific responses, vaccinated cats were not protected. Instead, accelerated virus replication was found, an observation similar to what previous experiments using other vaccine candidates have shown. Here, the results of the present study are discussed in the light of enhancement of lentivirus infections as a complicating factor in lentivirus vaccine development.  (+info)

Halothane effect on formalin-induced paw edema and flinching in rat. (8/2410)

The formalin test is a model of injury-produced inflammatory pain. Anesthetics, in clinically relevant concentrations, affect neutrophils and immune suppression. This study was to determine whether halothane reliably inhibits inflammatory reaction and formalin induced pain behavior or does not. Rats were exposed to 100% oxygen (control) or halothane, respectively for 30 min and then 24 hr later five percent formalin test was assessed. The base values of the paw's diameter were obtained earlier, and then formalin induced edema was assessed by measuring diameters of the injected paws at 5 min, 1 hr, 4 hr and 24 hr after the injection. Nociceptive behavior was quantified by counting the number of times with the paw flinched at 5 min intervals for 60 min. The diameters of edema in the halothane group lessened more than those in the oxygen group at 1 and 24 hr in each following of the injection (p<0.05). The rats pre-administered with oxygen or halothane were similar appearances in nociceptive behaviors. It suggests that halothane anesthesia might inhibit slightly the inflammatory reaction with the formalin-induced edema but might not inhibit the formalin-induced pain behavior in the event of pre-administration halothane 24 hr earlier before the formalin test of rat.  (+info)

Photoacoustic imaging (PAI) has been used to characterize the spatial and quantitative features of lipid-rich atherosclerotic plaques with high sensitivity and specificity. In this Letter, we first validate that the ultra-low temperature and formaldehyde treatment have no effect on photoacoustic characteristics of the artery samples. Comparative experiments between the PAI and histological results demonstrate that the ultra-low temperature or formaldehyde treatment has few effects on the PAI of the lipid-rich atherosclerotic plaques; the lipid relative concentration and the lipid percentage by PAI hold high correlation with histology ...
Identification of formaldehyde-induced modifications in proteins: reactions with model peptides.: Formaldehyde is a well known cross-linking agent that can inac
Title: Biological Role of Formaldehyde, and Cycles Related to Methylation, Demethylation, and Formaldehyde Production. VOLUME: 3 ISSUE: 3. Author(s):Huba Kalasz. Affiliation:Department ofPharmacology and Pharmacotherapy, Semmelweis University, H-1089Budapest, Nagyvarad ter 4, Hungary. Keywords:Formaldehyde, Methylation, methionine - homocysteine cycles, xenobiotics, Semicarbazide, amine oxidase. Abstract: An overview is given on the analysis, formation, role and occurrence of formaldehyde in living organisms. Various methods have been used for the determination of formaldehyde in tissues and body fluids. Gas chromatography, thin-layer chromatography and HPLC were employed for the analysis of formaldehyde, mainly after derivatization. The formaldehyde level of human blood and urine was found at the low ppm level. The formaldehyde level could be increased upto several ten μg / mL-1 following special dietary supply. Biochemical pathway of both the formaldehyde production and demethylation / ...
Occupational exposure to formaldehyde has been linked to nasopharyngeal carcinoma. To date, mechanistic explanations for this association have primarily focused on formaldehyde-induced cytotoxicity, regenerative hyperplasia and DNA damage. However, recent studies broaden the potential mechanisms as it is now well established that formaldehyde dehydrogenase, identical to S-nitrosoglutathione reductase, is an important mediator of cGMP-independent nitric oxide signaling pathways. We have previously described mechanisms by which formaldehyde can influence nitrosothiol homeostasis thereby leading to changes in pulmonary physiology. Considering evidences that nitrosothiols govern the Epstein-Barr virus infection cycle, and that the virus is strongly implicated in the etiology of nasopharyngeal carcinoma, studies are needed to examine the potential for formaldehyde to reactivate the Epstein-Barr virus as well as additively or synergistically interact with the virus to potentiate epithelial cell transformation
Made in USA. Formaldehyde can cause Cancer. Formaldehyde, a colorless, pungent smelling gas, is in widespread use in products such as particle board, insulation, plywood, laminates, cosmetics, dyes, smoke, fertilizers, fiberboard, filters, leathers, paper, plastic, rubber, textiles, etc. and can be emitted from them because it vaporizes at room temperature. In addition, formaldehyde is used in products such as embalming fluids, fuels, fungicides, adhesives and paints which can result in spills.. Medical problems associated with formaldehyde exposure include watery eyes, burning sensations in the eyes and throat, nausea, and difficulty in breathing. High concentrations may trigger asthma attacks. Some people can develop chemical sensitivity after exposure to formaldehyde. Formaldehyde is also a known to cause cancer.. For a breath of fresh air, simply sprinkle Smelleze® Formaldehyde Smell Removal Granules on the spill and sweep up after the spill is absorbed. Smelleze® Formaldehyde Odor Removal ...
Made in USA. Formaldehyde can cause Cancer. Formaldehyde, a colorless, pungent smelling gas, is in widespread use in products such as particle board, insulation, plywood, laminates, cosmetics, dyes, smoke, fertilizers, fiberboard, filters, leathers, paper, plastic, rubber, textiles, etc. and can be emitted from them because it vaporizes at room temperature. In addition, formaldehyde is used in products such as embalming fluids, fuels, fungicides, adhesives and paints which can result in spills.. Medical problems associated with formaldehyde exposure include watery eyes, burning sensations in the eyes and throat, nausea, and difficulty in breathing. High concentrations may trigger asthma attacks. Some people can develop chemical sensitivity after exposure to formaldehyde. Formaldehyde is also a known to cause cancer.. For a breath of fresh air, simply sprinkle Smelleze® Formaldehyde Smell Removal Granules on the spill and sweep up after the spill is absorbed. Smelleze® Formaldehyde Odor Removal ...
Formaldehyde is an organic compound with the formula CH2O. A gas at room temperature, formaldehyde is colorless and has a characteristic pungent, irritating odor. In view of its widespread use, toxicity and volatility, exposure to formaldehyde is a significant consideration for human health. On 10 June 2011, the US National Toxicology Program described formaldehyde as known to be a human carcinogen.. Formaldehyde is highly toxic to all animals, regardless of method of intake. Ingestion of as little as 30 mL (1 oz.) of a solution containing 37% formaldehyde has been reported to cause death in an adult human. Water solution of formaldehyde is very corrosive and its ingestion can cause severe injury to the upper gastrointestinal tract.. Occupational exposure to formaldehyde by inhalation is mainly from three types of sources: thermal or chemical decomposition of formaldehyde-based resins, formaldehyde emission from aqueous solutions (for example, embalming fluids), and the production of ...
For decades, formaldehyde has been routinely used to cross-link proteins in cells, tissue, and in some instances, even entire organisms. Due to its small size, formaldehyde can readily permeate cell walls and membranes, resulting in efficient cross-linking, i.e. the formation of covalent bonds between proteins, DNA, and other reactive molecules. Indeed, formaldehyde cross-linking is an instrumental component of many mainstream analytical/cell biology techniques including chromatin immunoprecipitation (ChIP) of protein-DNA complexes found in nuclei; immunohistological analysis of protein expression and localization within cells, tissues, and organs; and mass spectrometry (MS)-compatible silver-staining methodologies used to visualize low abundance proteins in polyacrylamide gels. However, despite its exquisite suitability for use in the analysis of protein environments within cells, formaldehyde has yet to be commonly employed in the directed analysis of protein-protein interactions and cellular ...
The EPAs assessment was not prepared in a logically consistent fashion and did not document methods and criteria for selecting and evaluating the studies considered. This lack of clarity and transparency in the formaldehyde assessment has also been found in other EPA chemical assessments that the NAS reviewed. NAS recommended that the EPA change its risk assessment methodology.. Humans and animals produce formaldehyde as part of the normal metabolic process. Formaldehyde is typically present in all tissues, cells and bodily fluids. The naturally occurring presence of formaldehyde in the body complicates the evaluation of the health risks associated with formaldehyde inhalation.. The EPA correctly concluded that formaldehyde is genotoxic, meaning that it impacts cell DNA. Formaldehyde is absorbed in the body at the site of first contact, meaning that formaldehyde is likely to remain in the body in the respiratory cells that line the airways. Although the NAS could not find support that ...
There was a large formaldehyde scare directly after Hurricane Katrina hit in 2005, which caused worry in those searching to purchase used RVs for sale by owner. People feared buying used RVs for sale by owner thinking that formaldehyde was in the motor home and that it was dangerous. Learn the facts about formaldehyde - where it can be found, how people are exposed, and how it is in used RVs for sale by owner. It is safe to purchase used RVs for sale by owner, even if there is formaldehyde in them.. Formaldehyde can be found in the everyday world in many items. There is a wide array of items that contain formaldehyde, not just used RVs for sale by owner. It is in cabbage, brussel sprouts, cosmetics, medications, as well as cleaning products and nail polish. Formaldehyde can be found in smoke from cigarettes and cigars, too.. There are also formaldehyde traces or elements in draperies, permanent press clothing, and fiberglass. It is found in foods that livestock eat, and it is used in the process ...
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Formaldehyde (HCHO) is present in many substances that are commonly found in the buildings. There are serious health effects for people who are exposed to the HCHO in the air especially in the unventilated room. This study was carried out in the library of Engineering Campus (EC) and Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia to measure and compare the levels of HCHO. Data were collected on the main structural characteristics of the buildings and other meteorological parameters such as temperature and relative humidity were also monitored by using formaldemeter. Measurements were taken during weekdays and weekend services in the library. Maximum concentration of HCHO was recorded in AMDI library with 0.06 ppm compared to EC library 0.057 ppm. The relationships between HCHO concentrations with meteorological parameters were identifical and the temperature in the monitored libraries was mostly acceptable but the relative humidity tends to be much higher than minimum ...
Abstract: Formaldehyde adsorption on CeO2(111) surface terminated by bridge O atom was systematically investigated by periodic density functional theory (DFT) with the generalized gradient approximation (GGA) developed by projector augmented wave (PAW). According to the analysis of the optimized structures of adsorbed formaldehyde, adsorption energies at different coverages and different adsorption sites, it is found that there are two types of adsorbed formaldehyde on CeO2(111) surface. For the chemisorbed formaldehyde, the carbon and oxygen atoms of formaldehyde interact with the corresponding oxygen and cerium atoms of CeO2(111) surface, and form chemical bonds. The adsorption energies decrease with the increase of formaldehyde coverage on CeO2(111) surface. However, the optimized structures of the physically adsorbed formaldehyde are almost unchanged compared with the free formaldehyde molecule. The corresponding adsorption energies are generally lower than -27 kJ·mol-1. It is learned from ...
Problem statement: Formaldehyde was classified as a potential human carcinogen, identified by the US Environmental Protection Agency and International Agency for Research on Cancer as a Class 2A carcinogen. It also can cause irritation to human. However, formaldehyde present in biological fluids or tissues and environment as a result of natural processes or from man-made sources and can be emitted slowly into the air. Formaldehyde was used in many industries, hospitals and research as a sterilizing and preserving agent. The utmost concern of this study was about the present of formaldehyde in seafood product. Approach: A review was done on the health effect adverse by formaldehyde, formaldehyde toxicity to human, formaldehyde in seafood and methods to control formaldehyde in food and seafood. Google, Pubmed, Science Direct and Scopus were used in preparation of this review. Results: This review clarified that one of the formaldehyde source to human was seafood. Previous study showed that seafood ...
Household. The Formaldehyde Monitor report provides the past, present and future industry trends and the forecast information related to the expected Formaldehyde Monitor sales revenue, Formaldehyde Monitor growth, Formaldehyde Monitor demand and supply scenario. Furthermore, the opportunities and the threats to the development of Formaldehyde Monitor market are also covered at depth in this research document.. Initially, the Formaldehyde Monitor manufacturing analysis of the major industry players based on their company profiles, annual revenue, sales margin, growth aspects is also covered in this report, which will help other Formaldehyde Monitor market players in driving business insights.. To Download A Sample Of The Report Click Here: http://qyresearch.us/report/global-formaldehyde-monitor-market-2017/82221/#requestForSample. Key Emphasizes Of The Formaldehyde Monitor Market:. The fundamental details related to Formaldehyde Monitor industry like the product definition, cost, variety of ...
Formaldehyde (HCHO) was recently detected at concentrations above the cancer benchmark in 90% of 60 000 surveyed United States census tracks. Formaldehyde leaches into and mixes with water extremely well, exposing aquatic life. Further, formaldehyde is used therapeutically in aquaculture to remove external protozoa and other parasites from fish. The present study was undertaken to determine if sub-acute HCHO causes immunologic changes in tilapia Oreochromis niloticus. Fish were exposed to 0, 50, or 150 ppm of HCHO. Immune parameters examined included blood hematology, spleen/body weight ratio, spleen and pronephros total cellularity, leukocyte blastogenesis, and natural killer cell cytotoxicity. Organ/body weight ratios and total cellularity were not different from controls. Similarly, mitogen response and natural killer cell function were unchanged. Peripheral blood lymphocytes decreased as HCHO exposure increased. Formaldehyde exposure also decreased the number of progenitor cells in the fish ...
This study measured the formaldehyde exposure through ambient and personal air sampling, assessed the symptoms of poor health as well as estimating the health risk among hospital workers. The respiratory system: asthma, bronchitis and pulmonary edema arise. ; Med Pr (1998; 49(6)). Poisoning may also occur when the chemical is being administered directly to a patient as formalin soaked packs for cysts. ; Biomed Environ Sci (Dec 1997; 10(4)). Many studies have been conducted to evaluate the effects of FA during systemic and respiratory exposures in rats. Breathing becomes difficult and blood may appear in sputum. In more severe cases, the symptoms of exposure to formaldehyde can escalate to include chest congestion and tightness, eye infections, bronchitis, and even asthma. Formaldehyde is toxic over a range of doses; chances of exposure and subsequent harmful effects are increased as (room) temperature increases, because of FAs volatility. 1. MMWR Morb Mortal Wkly Rep (Jun 20 1986; 35(24)). ...
Formaldehyde is taken into account a volatile organic compound (VOC), meaning items containing Visit Your URL formaldehyde might emit it and release formaldehyde into the natural environment. This off-gassing can possibly be considered a health and fitness hazard, which ends up in the heightened problem regarding the Safe and sound use of formaldehyde in items. The California Air Means Board (CARB) specifies emission limitations determined by the sort of made/engineered Wooden plus the Environmental Solution Company (EPA) is still in a very point out of assessment with programs to formulate rules impacting the use of formaldehyde in a variety of products ...
A total of 299 pigs (DNA 400 × 200; initial BW 33.6 lb) were used in a 14-d study to determine the effects of two separate commercial formaldehyde products (Termin-8; Anitox Corp, Lawrenceville, GA and SalCURB; Kemin Industries, Inc., Des Moines, IA) on nursery pig performance. Dietary treatments were arranged in a 3 × 2 factorial design with three formaldehyde inclusions: none vs. 6.5 lb/ton SalCURB vs. 6.0 lb/ton Termin-8 and 2 Lys levels: Standard (1.25% SID Lys) vs. Low (1.10% SID Lys). Formaldehyde treatments were established based on supplier recommendations and diets were treated with supplier-specific equipment. Pens of pigs were balanced by initial BW and randomly allotted to one of six treatments with five pigs per pen and 10 pens per treatment. Overall, there was a tendency (P | 0.10) for a formaldehyde source × Lys level interaction to affect ADG and F/G, but not ADFI. Pigs fed diets with standard Lys levels, regardless of formaldehyde source, tended to have similar (P | 0.10) ADG to one
Formaldehyde is a common air pollutant that tends to be found in elevated concentrations in indoor air. Exposure to formaldehyde has the potential to impact on respiratory health, particularly amongst sensitive individuals and populations, including children. Children spend most of their time indoors at home, however, there are very little data on the contribution of formaldehyde concentrations in homes to personal exposure in children. The principal aim of this cross sectional study was to investigate whether the domestic environment is the most significant source of personal exposure of formaldehyde in children. Forty-one primary school children (aged between 8 and 12) were recruited from two areas of Perth, Western Australia. Each child wore a personal passive formaldehyde sampler over a 24 hour period on two separate occasions, winter and summer. Samplers were also located indoors at home, outdoors at centralised locations and indoors at school for the corresponding period. A questionnaire about
The development of appropriate technology for treatment of high concentration formaldehyde wastewater prior to discharge into the environment is important to minimize its impact. Therefore, this study investigates the degradation of formaldehyde in a bioreactor. The experimental unit consisted of an up-flow aerobic immobilized biomass (UAIB) reactor with high porosity pumice stone as a fixed bed support. The UAIB reactor was fed with synthetic wastewater, prepared by mixing a solution of molasses with formaldehyde and nutrients. Reactor was tested at different synthetic wastewater concentrations with CODtotal (CODFA+CODmolasses) of 500, 1000 and 1500 mg/l at 24hr hydraulic retention time. The effect of feed composition was tested by changing the ratio of CODtotal/CODFA at 6/1, 5/1, 4/1, 3/1 2/1 and 1/1 to analyze the impact of formaldehyde concentration. The average formaldehyde and COD removal efficiencies obtained in the UAIB were 97.1% and 88%, respectively. The maximum CODT and CF removal ...
Shenzhen Newfors Technology Co., Ltd. Free consultation telephone: 400-8090-820; The company mainly supplies various formaldehyde detectors, formaldehyde sensors, formaldehyde analyzers, formaldehyde transmitters, formaldehyde probes, formaldehyde alarms, and imported formaldehyde detectors. The complete set of formaldehyde detection and control system and scheme is the Chinese general agent of American Akut gas detector.
In 1987, the EPA classified formaldehyde as a probable human carcinogen under conditions of unusually high or prolonged exposure. The current draft assessment finds that formaldehyde could be up to five times more likely to cause cancer in humans than the EPA previously calculated. The EPAs preliminary conclusions find that formaldehyde can cause up to one occurrence of cancer for every 1,000 people who breathe it at exposure levels the Centers for Disease Control and Prevention (CDC) considers typical. The EPAs draft further finds that formaldehyde exposure could increase the frequency of asthma attacks among children and result in harm to childrens lung function and their immune systems.. Last week, in related legislation, The Formaldehyde Standards for Composite Wood Products Act(H.R. 4805) (the Act) was passed in the House, amending the Toxic Substances Control Act, to set stricter formaldehyde emissions limits for plywood and other composite wood products. The Senate approved the Act ...
An impeccable sample fixation is a prerequisite for a correct histological diagnosis. Tissue samples must be immersed in an optimally chosen fixative immediately after sampling, because a timely fixation will prevent autolysis, putrefaction and other unwanted cellular changes. Although there are hundreds of histological fixatives and at least tens of formaldehyde-based fixatives, neutral buffered formaldehyde solutions with a concentration range from 4% to 10% are the most commonly used fixatives, primarily because of their simple and universal application. Tissue fixation using a buffered formaldehyde solution results in forming cross-links, i. e. it forms methylene bridges between proteins, that is, it results in keeping tissue components in their in vivo relation. If fixated properly, the tissue sample can withstand additional histological tissue processing and staining.. The NB 4% formaldehyde solution is 10% buffered formalin, which is the most commonly used fixative. It is suitable for ...
You might decide your natural locks arent so bad after all, given a new warning from the U.S. Food and Drug Administration that most hair straightening/smoothing products release formaldehyde gas, a human carcinogen.. Being exposed to formaldehyde for longer periods of time and at higher concentrations increases the health risks, according to the FDA.. Formaldehyde exposure can cause a host of complaints, including eye problems or irritation; nervous system problems such as headaches and dizziness; and respiratory problems such as sore or scratchy throat, cough or wheezing. Nausea, chest pain, vomiting and rashes are also associated with formaldehyde exposure.. Long-term effects can include chronic headaches, asthma, contact dermatitis (a red, itchy rash) and possibly cancer, the FDA noted in a news release.. Some people are highly sensitive to the colorless gas, while others have no reaction to the same level of exposure. If youre sensitive to formaldehyde, dont use hair straighteners, the ...
top Formaldehyde gas instrument.The Size of Particulate Matter MeasuredAbility to Detect Other PollutantsThe Technique Used to Display The ReadingsSystem SettingsOverall DesignThis is the most important feature in an air quality monitor as it determines whether your monitor will be able to accurately detect contaminants like formaldehyde in the air. Particulate matter (PM) is used to describe the vapor and particles suspended in the air. A good air quality monitor should be able to measure between 0.3 and 2.5 microns. This enables it to detect most pollutants including formaldehyde. It is important to note that s…See more on vipforair.comOther Sterilization Methods | Disinfection Sterilization ... sterilization using formaldehyde is achieved when performed with a high concentration of gas, at a temperature between 60 o and 80&C and with a relative humidity of 75 to 100%. Studies indicate that formaldehyde is a mutagen and a potential human carcinogen, and OSHA regulates formaldehyde.
Formaldehyde is a colourless, pungent chemical used in a number of manufacturing and chemical industries, and as a preservative in many types of products. Formaldehyde is found, in at least low concentrations, in most homes and workplaces. Many products that use formaldehyde contain very small amounts and may cause problems only for the few people who suffer extreme sensitivities.. Air pollution is the greatest source of exposure to formaldehyde for the general population. Sources include cigarette smoke, emission from new plastic materials such as upholstery and carpets, pressed wood products and fuel-burning appliances. In house fires, formaldehyde residues in fabrics and foams play a major role in the toxicity of the smoke.. Industrial workers who produce formaldehyde or formaldehyde-containing products, laboratory technicians, certain health care professionals, and mortuary employees are at risk for high levels of exposure to this chemical. Exposure occurs from inhaling formaldehyde gas or ...
By use iCoat nanotechnology coating product to decompose formaldehyde. iCoat nanocoat can remove furnitures smell,Remove the Chemical Odor From New Furniture.
Urea formaldehyde, also known as urea methanal, so named for its common synthesis UF and related amino resins are a class of thermosetting resins of which It is also used to glue wood togetherUrea Urea formaldehyde (Plastics Historical Society) History of urea formaldehyde Chapter of Carl Meyer, Leave a Message ...
Urea formaldehyde chemical properties, What are the chemical properties of Urea formaldehyde 9011-05-6, What are the physical properties of Urea formaldehyde ect.
By ignoring formaldehyde levels in trailers, FEMA again betrayed thousands of hurricane victims By ignoring formaldehyde levels in trailers, FEMA again betrayed thousands of hurricane victims. Two years later, the insults and depredations visited on the victims of hurricanes Katrina and Rita by the very agency that is supposed to be help them seem to have no end. Last week, documents subpoenaed by a congressional committee revealed that the Federal Emergency Management Agency has managed to reach a new low, even by its deplorable standards. What the documents disclosed was that for more than a year, FEMA attorneys, apparently more concerned about legal liabilities than about protecting the health of thousands of hurricane victims, discouraged agency officials from investigating reports of dangerous levels of formaldehyde in trailers housing the victims. At the hearing, after listening to moving reports from three trailer occupants whose families attributed their illnesses to formaldehyde, both
TY - JOUR. T1 - Analysis of chromatin structure by in vivo formaldehyde cross-linking. AU - Orlando, Valerio. AU - Strutt, Helen. AU - Paro, Renato. PY - 1997/2. Y1 - 1997/2. N2 - Recent advances leave no doubt that higher order chromatin structures play a fundamental role in many developmentally important mechanisms of gene regulation. In particular analyses in genetic model systems like yeast and Drosophila uncovered novel proteins that are involved in the regulation of chromatin structures. Many of these proteins do not bind directly to DNA but interact in large multimeric complexes. To identify the DNA elements regulated by these multiprotein complexes, alternative approaches to the standard methods of DNA-protein analysis had to be devised. Here we present a method that preserves the architecture of the higher order chromatin structures by crosslinking cells in vivo with formaldehyde. An immunoprecipitation strategy is then used to identify the DNA targets of chromosomal proteins of ...
291267615 - EP 1096058 A2 2001-05-02 - Formaldehyde condensate and fiber treatment agent containing it - A formaldehyde condensate obtained by a polycondensation reaction of a phenol compound mixture with formaldehyde and reduction treatment of the resulting polycondensation reaction product with a dithionite or thiosulfate, and a polyamide fiber material dye fixing agent and polyamide fiber material contamination inhibitor containing the formaldehyde condensate. The dye fixing agent and contamination inhibitor produce no coloration during treatment and exhibit low loss of light fastness.[origin: EP1096058A2] A formaldehyde condensate obtained by a polycondensation reaction of a phenol compound mixture with formaldehyde and reduction treatment of the resulting polycondensation reaction product with a dithionite or thiosulfate, and a polyamide fiber material dye fixing agent and polyamide fiber material contamination inhibitor containing the formaldehyde condensate. The dye fixing agent and contamination
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Research Corridor has published a new research study titled Sulphonated Melamine Formaldehyde Market - Growth, Share, Opportunities, Competitive Analysis and Forecast, 2017 - 2025. The Sulphonated Melamine Formaldehyde market report studies current as well as future aspects of the Sulphonated Melamine Formaldehyde Market based upon factors such as market dynamics, key ongoing trends and segmentation analysis. Apart from the above elements, the Sulphonated Melamine Formaldehyde Market research report provides a 360-degree view of the Sulphonated Melamine Formaldehyde industry with geographic segmentation, statistical forecast and the competitive landscape.. Browse the complete report at http://www.researchcorridor.com/sulphonated-melamine-formaldehyde-market/. Geographically, the Sulphonated Melamine Formaldehyde Market report comprises dedicated sections centering on the regional market revenue and trends. The Sulphonated Melamine Formaldehyde market has been segmented on the basis of ...
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Background: Formaldehyde is commonly used for cadaver preservation in most anatomy laboratories with medical students at risk of acute toxic reactions involving the mucosal surface of the upper respiratory tract. Aim: To assess the nasal induced physical reactions from formaldehyde exposure among pre-clinical medical students. Materials and Method: This is a cross sectional, anonymous questionnaire-based study that included 119 preclinical medical students who took human anatomy laboratory course in the year 2012 at the College of Health Science of the Usman Danfodiyo University, Sokoto, Nigeria. Results: One hundred and nineteen students responded to the questionnaires. There were 82 males and 37 females with a ratio of 2.2:1. Fifty nine (49.6%) of the respondents had watery rhinorrhea, nose itching 41 (34.5%), excessive sneezing 34 (28.6%), nasal obstruction 32 (26.9%), hyposmia 23 (19.3%) and 6 (5%) epistaxis. Thirty (29.2%) respondents had persistent nasal symptoms throughout the
Remember to wear gloves and be very careful of the fixatives!!! Remember which side of the coverslip has the cells. Remember to discard used fix into the appropriate hazardous waste container in the chemical hood in the main lab.. Paraformaldehyde fixation. Fixative Stocks: 32% Paraformaldehyde: bottle under chemical hood in main lab. Detergent: 10% triton X 100. To make 10 mls of fixative: Paraformaldehyde: 1 mL stock 10% triton: 0.5 ml 10X PBS -/- 1 mL add water make 10 mL (8.5 mL). Use same method as Formaldehyde fixation.. ...
In the deformation test according to EN 438 method A, bending radii of 3-4 mm are achieved with 0.7 mm laminates. Melamine formaldehyde (MF) Excellent heat resistance as well as being resistant to scratching and staining, hard and strong Laminates for worktops, food safe so used for picnic tableware Design-2-Part. Melochem molding compound is an alpha-cellulose filled melamine formaldehyde material, which is available in an unlimited range of colors. Polyamide Resins. The melamine-formaldehyde condensate as claimed in, 7. How many candles are on a Hanukkah menorah? This produces a thermoplastic resin. Melamine urea formaldehyde (MUF) resin is a thermosetting polymer type which is produced by the reaction between urea with melamine and formaldehyde (Pizzi.A, 1994). With the use of HPLC-MS, a better separation of the oligomers in comparison with GPC is detectable. Melamine Formaldehyde Resins Non-methylated melamine formaldehyde resins are hard, very durable and versatile thermosets with good fire ...
AbstractThe aim of this study was to assess whether higher plasma formaldehyde concentration existed in women diagnosed with miscarriage and whether it contributed to higher risk of miscarriage in Chinese women.A case-control study was conducted in 118 women with a diagnosed miscarriage at the first
Chemicals - Formaldehyde Solution This product is a water-clear solution when shipped. Please refer to the recommended temperature range on the Technical Data Sheet for storage and transportation information.
Gas-phase formaldehyde (HCHO) is an intermediate and a sensitive indicator for volatile organic compounds (VOCs) oxidation, which drives tropospheric ozone production. Effective photochemical pollution control strategies demand a thorough understanding of photochemical oxidation precursors, making differentiation between sources of primary and secondary generated HCHO inevitable. Spatial and seasonal variations of airborne carbonyls based on two years of measurements (2012-2013), coupled with a correlation-based HCHO source apportionment analysis, were determined for three sampling locations in Hong Kong (denoted HT, TC, and YL). Formaldehyde and acetaldehyde were the two most abundant compounds of the total quantified carbonyls. Pearsons correlation analysis (r > 0.7) implies that formaldehyde and acetaldehyde possibly share similar sources. The total carbonyl concentration trends (HT < TC < YL) reflect location characteristics (urban > rural). A regression analysis further ...
On June 21, 2008, the Environmental Protection Agency (EPA) agreed to a series of investigative steps that will move the nation closer to national standards for reducing formaldehyde in housing. The move comes on the heels of a March 24, 2008, petition launched by over 25 environmental, housing, and health organizations to extend the California formaldehyde standards nationally. The California standards require a dramatic reduction in formaldehyde off-gassing from hardwood plywood, particle board, and medium density fiberboard (MDF), all of which are products used in most low-cost furniture and wood building materials.. ...
People are exposed primarily by inhaling formaldehyde gas or vapor from the air or by absorbing liquids containing formaldehyde through the skin. Workers who produce formaldehyde or products that contain formaldehyde-as well as laboratory technicians, certain health care professionals, and mortuary employees-may be exposed to higher levels of formaldehyde than the general public.. The general public may be exposed to formaldehyde by breathing contaminated air from sources such as pressed-wood products, tobacco smoke, and automobile tailpipe emissions. Another potential source of exposure to formaldehyde is the use of unvented fuel-burning appliances, such as gas stoves, wood-burning stoves, and kerosene heaters.. ...
Formaldehyde is an ubiquitous air pollutant in indoor and outdoor atmospheres. Possible sources are disinfectants, paints, resins, particle boards, tobbaco smoke and combustion processes. It is used in large amounts in the plastics manufacturing industry. The German government has set the maximum allowed workspace concentration, MAK-value, to 0.5 ppm (v/v). For non-occupational indoor environments 0.1 ppm (v/v) are recommended. Traditional systems for the determination of formaldehyde in air consist of a sampling step (e.g. washer, adsorber) followed by a quantification step (optical, enzymatic, or titration). There are only few reports where formaldehyde is determined directly in the gas phase in one step. We present an electrochemical enzyme biosensor that can detect gaseous formaldehyde directly without a separate sampling step. NAD-dependent formaldehyde dehydrogenase converts formaldehyde to formic acid. The formed NADH is oxidised by a redox mediator (e.g. naphthoquinone). The latter is ...
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Abstract(s) :. (Anglais) Volatile Organic Compounds in indoor air have become these last years the subject of a big concern. The main emission sources are: furniture, paintings, varnishes, wood protection, construction materials, etc. In particular, formaldehyde is now considered by the authorities as one of the priority pollutants because of its carcinogenic [1] character and because of the multiplication of sources in our close environment. The world health organization (WHO) guideline for indoor air formaldehyde concentration is 80 ppb (0.1 mg/m3) [2]. Methods based on air sample collection and lab measurements are available and are the most used methods [3]. They are accurate and reliable but these methods are expensive, are not real time and some statistics issues are raised because of that. That is why, it is important to detect and measure formaldehyde in real time, in situ and with a low cost equipment. Devices based on chemical sensors are a good solution as these systems can be very ...
Background and objectives: Acantholimon bracteatum (Girard) Boiss (Plumbaginaceae) is used in variety of diseases including hepatic ailments in the west regions of Iran. In the present study, the hepatoprotective effect of the methanol extract (ME) of A. bracteatum on formaldehyde (FA) induced liver injury has been investigated in adult male mice. Methods: Fifty six adult male mice were divided into 8 groups. The control group received normal saline. Group II (E2) was treated with formaldehyde 10 mg/kg. Group III to VIII (E3-E8) were treated with both FA (10 mg/kg) and the metanol extract at doses of 5, 10, 15, 20, 50 and 100 mg/kg, respectively. All animals were treated for 2 weeks (once every other day). At the end of the morphology, histopathology of liver and serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and alkaline phosphatase (ALP) were evaluated. Results: Formaldehyde induced liver damage both in histology and function. The levels of ALT, AST and ALP enzymes
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A number of reports have recently emerged with focus on extraction of proteins from formalin-fixed paraffin-embedded (FFPE) tissues for MS analysis; however, reproducibility and robustness as compared to flash frozen controls is generally overlooked. The goal of this study was to identify and validate a practical and highly robust approach for the proteomics analysis of FFPE tissues. FFPE and matched frozen pancreatic tissues obtained from mice (n = 8) were analyzed using 1D-nanoLC-MS(MS)2 following work up with commercially available kits. The chosen approach for FFPE tissues was found to be highly comparable to that of frozen. In addition, the total number of unique peptides identified between the two groups was highly similar, with 958 identified for FFPE and 1070 identified for frozen, with protein identifications that corresponded by approximately 80%. This approach was then applied to archived human FFPE pancreatic cancer specimens (n = 11) as compared to uninvolved tissues (n = 8), where ...
TY - GEN. T1 - A graphene-based formaldehyde sensor with immobilized enzyme by layer-by-layer self-assembly. AU - Sando, S.. AU - Cui, Tianhong. PY - 2016/1/1. Y1 - 2016/1/1. N2 - This study proposes a novel way to design and fabricate a gaseous formaldehyde sensor based on self-assembled graphene. Layer-by-layer (LbL) method enables to functionalize graphene surface with formaldehyde dehydrogenase (FALDH) that works as a catalyst for specific enzymatic reaction of formaldehyde. The enzymatic reaction is triggered near by the graphene surface, so that graphene can quickly respond and sense formaldehyde. This fabrication method offers the possibility of use of graphene-based gas sensors in a broader spectrum.. AB - This study proposes a novel way to design and fabricate a gaseous formaldehyde sensor based on self-assembled graphene. Layer-by-layer (LbL) method enables to functionalize graphene surface with formaldehyde dehydrogenase (FALDH) that works as a catalyst for specific enzymatic reaction ...
TY - GEN. T1 - A graphene-based formaldehyde sensor with immobilized enzyme by layer-by-layer self-assembly. AU - Sando, S.. AU - Cui, Tianhong. PY - 2016/1/1. Y1 - 2016/1/1. N2 - This study proposes a novel way to design and fabricate a gaseous formaldehyde sensor based on self-assembled graphene. Layer-by-layer (LbL) method enables to functionalize graphene surface with formaldehyde dehydrogenase (FALDH) that works as a catalyst for specific enzymatic reaction of formaldehyde. The enzymatic reaction is triggered near by the graphene surface, so that graphene can quickly respond and sense formaldehyde. This fabrication method offers the possibility of use of graphene-based gas sensors in a broader spectrum.. AB - This study proposes a novel way to design and fabricate a gaseous formaldehyde sensor based on self-assembled graphene. Layer-by-layer (LbL) method enables to functionalize graphene surface with formaldehyde dehydrogenase (FALDH) that works as a catalyst for specific enzymatic reaction ...
A large amount of poplar plywood is now being imported into Japan from China, and as a result, formaldehyde emitted from this plywood represents an undesirable chemical that must be controlled using a chemical catching agent. The aim of this study is to find an approach to reduce the formaldehyde emission of poplar plywood using thermal treatment without employing any chemicals. The experimental results obtained show that heating veneer sheets in the temperature range of 150 °C to 170 °C effectively reduced the formaldehyde emission of plywood, without diminishing the mechanical properties of the veneer. By applying Langmuirs theory and Hailwood-Horrobin theory to the adsorption isotherm obtained in this study, the relationship between the formaldehyde emission of plywood and the adsorption properties of veneer as a material is discussed. When veneer sheets were heated in the temperature range of 150 °C to 170 °C, the amount of hydrated water (monomolecular layer) decreased slightly and that of
Formaldehyde Free Face Mask For Australian As1716 … formaldehyde free Australian AS1716 standard mask USA It is the basic parameter for certification tests carried outon respirators in European standard EN1492001, NIOSH 42 CFR Part 84, and Australian export Australian AS1716 standard mask parts,N95 mask .. formaldehyde free face mask Australian AS1716 … formaldehyde free Australian AS1716 standard mask USA health Australian AS1716 standard mask in The United States. It is the basic parameter for certification tests carried out on respirators in European standard EN1492001 .... formaldehyde free Australian AS1716 standard facemask ... N95 filter respirator retains 95% of the most penetrating particles, meaning 0.3 micrometre (m) particles, while the bra medical mask australian as1716 standard Surgical formaldehyde free Australian AS1716 standard medical. Mexico face mask Australian AS1716 standard - Medical ... formaldehyde free Australian AS1716 standard mask USA health Australian AS1716 ...
The fixative 10% buffered formalin is commonly used to preserve tissues for routine histology in many labs. The formaldehyde has a greater chance for oxidation in this concentration of tissue fixative and eventually the solution will start to drop in pH, in spite of the buffer. We recommend that 10% buffered formalin solutions be used no longer than 3 months after they were initially mixed. The solution should be clear, colorless, with no precipitate and the pH should not be below 6.5.. The other problem with 10% buffered formalin is the slowly increasing concentration of methanol (an unwanted byproduct of aging formaldehyde). Methanol promotes clumping of proteins, instead of the cross-linking of proteins that formaldehyde performs. A methanol-free fixative will give the best preservation, particularly if you plan to use the tissue for antibody staining at a later time.. The most common way to avoid methanol in a formaldehyde solution is to make the solution up fresh from crystalline ...
The present study showed that sertraline inhibits a classical experimental model of pain, the formalin-induced nociception. Sertraline was able to attenuate the increase in the afferent activity of the ScN after a painful stimulus. This effect was accompanied by a decrease in RF and a decrease in serum 5-HT concentration. In addition, formalin administration caused an increase in MAP and tachycardia.. Formalin is an agent used to induce hyperalgesia and inflammation in rat paws, and this model has been considered to be a suitable model for acute clinical pain (25). McNamara et al. (26) showed that formalin activates primary afferent sensory neurons through a specific and direct action on TRPA1, a member of the transient receptor potential family of cation channels that is highly expressed by a subset of C-fiber nociceptors. The nociceptive response to formalin occurs in a biphasic pattern: there is an initial acute period (phase 1, duration of 7 ± 10 min) and, after a short period of remission, ...
D1356 Terminology Relating to Sampling and Analysis of Atmospheres. D5116 Guide for Small-Scale Environmental Chamber Determinations of Organic Emissions from Indoor Materials/Products. D6007 Test Method for Determining Formaldehyde Concentrations in Air from Wood Products Using a Small-Scale Chamber. D6177 Practice for Determining Emission Profiles of Volatile Organic Chemicals Emitted from Bedding Sets. D6330 Practice for Determination of Volatile Organic Compounds (Excluding Formaldehyde) Emissions from Wood-Based Panels Using Small Environmental Chambers Under Defined Test Conditions. D6345 Guide for Selection of Methods for Active, Integrative Sampling of Volatile Organic Compounds in Air. D6670 Practice for Full-Scale Chamber Determination of Volatile Organic Emissions from Indoor Materials/Products. D7706 Practice for Rapid Screening of VOC Emissions from Products Using Micro-Scale Chambers. E1333 Test Method for Determining Formaldehyde Concentrations in Air and Emission Rates from Wood ...
Formaldehyde is a known carcinogen, which damages and mutates DNA in the cells of mammals. Acute and chronic exposure to formaldehyde may occur in both occupational settings (e.g., embalmers) and from several household products (e.g., insulation, particle boards, and carpeting). Upon human exposure to formaldehyde, several DNA adducts may be formed, including those with the amino groups of guanine (denoted CH2OH-N2-G), cytosine (CH2OH-N4-C), and adenine (CH2OH-N6-A). Each of these adducts consists of a methoxy moiety linked to the exocyclic amino group of the respective DNA nucleobase. The methoxy moiety can interfere with several noncovalent interactions within a DNA helix, including Watson-Crick hydrogen bonding, Hoogsteen hydrogen bonding, and stacking interactions between neighboring DNA nucleobases. These interactions are essential to the normal function of DNA and their disruption could lead to mutations when DNA is copied, which in turn lead to health effects such as cancer. Although ...
Worker exposure to formaldehyde (50000), acetaldehyde (75070), phenol (108952), nitrosamines, and noise was determined at C.P. Chemical Company, Inc. (SIC-2899) in White Plains, New York on March 3 and 4, 1980. The company was included in a NIOSH industry wide study of manufacturers and applicators of urea formaldehyde and polyurethane foam insulation. A chemist, foreman, and laborer were involved
Data are presented concerning the basic metabolism sites, the reaction paths crossing in them and regulatory and toxical effect of formaldehyde and nitric oxide being mediated through them. In particular, they include: glutathione-formaldehyde-dependent dehydrogenase path of S-nitrosoglutathione reduction, semi-carbaside-sensitive amino-oxidase (SSAO) and NO-synthase systems; transformation of thioproline and metallothioneines, including nitrosation reactions. Possibilities of hexamethylenetetramine synthesis in the organism as well as its metabolism in conditions of formaldehyde hyperproduction and nitrosative stress are discussed. The role of metabolism sites, common for formaldehyde and nitric oxi-de, in the mechanisms of toxical effect of these compounds and development of pathologic states is considered.. Key words: nitric oxide, formaldehyde, glutathione-dependent formaldehyde dehydrogenase, S-nitrosoglutathione reductase, semicarbaside-sensitive aminoxidase, thioproline, hexamethy-lene ...
Formaldehyde carcinogenicity is now a commonly accepted notion in society, as well as in anatomic pathology laboratories. Guilty on arrival. However, the background of this concept is far beyond a reasonable doubt.. There is not now even an echo politically charged dispute of 1980s between U.S. Environment Protection Agency (EPA), Occupational Safety & Health Agency (OSHA), College of American Pathologists (CAP), Formaldehyde Institute, DuPont, and labor unions on the evaluation of formaldehyde occupational exposure risk, which was based on the assessment of formaldehyde as probable carcinogen at that time. 1 In 1989, the American Medical Association (AMA) summarized the literature data through 1985 on occupational exposure to formaldehyde. Mentioning that regulatory agencies as OSHA, regarded formaldehyde as a possible human carcinogen, AMA observed that this is a controversial opinion in the view of many industry and academic scientists.1. Times have changed. The main organization ...
In addition to the laminate industry, the adhesive industry was the second largest consumer of melamine formaldehyde in 2012. Due to the global rising growth of furniture and construction industries, the increase in the consumption of adhesives and laminates has played a pivotal role in the overall melamine formaldehyde market. The use of melamine formaldehyde is also seen in the tableware applications. This market is augmented to show the fastest growth rate due to the high consumption of MF products in the future. Likewise, the U.S. Food and Drug Administration (FDA) agreement to implement melamine formaldehyde in the food manufacturing and packaging sectors, as well as other tableware segments is anticipated to boost the consumption of melamine formaldehyde in this particular application. Some additional applications such as household appliances, sanitary ware, and electrical appliances has also witnessed high consumption of melamine formaldehyde, and the growth in these markets is also ...
The U.S. Department of Labors Occupational Safety and Health Administration is continuing its efforts to protect workers from the dangers of formaldehyde exposure.In November, OSHA issued citations and fines to two salons for failing to implement pr
Formaldehyde (HCHO) columns measured from space provide constraints on emissions of volatile organic compounds (VOCs). Quantitative interpretation requires characterization of errors in HCHO column retrievals and relating these columns to VOC emissions. Retrieval error is mainly in the air mass factor (AMF) which relates fitted backscattered radiances to vertical columns and requires external information on HCHO, aerosols, and clouds. Here we use aircraft data collected over North America and the Atlantic to determine the local relationships between HCHO columns and VOC emissions, calculate AMFs for HCHO retrievals, assess the errors in deriving AMFs with a chemical transport model (GEOS-Chem), and draw conclusions regarding space-based mapping of VOC emissions. We show that isoprene drives observed HCHO column variability over North America; HCHO column data from space can thus be used effectively as a proxy for isoprene emission. From observed HCHO and isoprene profiles we find an HCHO molar ...
The concentrations of gaseous atmospheric carbonyl compounds have been measured at a coastal site on the southern tip of Nova Scotia during August 1993 as part of the National Oceanic and Atmospheric Administrations North Atlantic Regional Experiment (NARE) summer intensive. The DNPH-cartridge technique was used for sampling, with analysis by HPLC with UV absorbance detection. The carbon isotopic content of formaldehyde was measured using a novel collection technique on bisulfite-coated fillers followed by accelerator mass spectrometric determination of C-14 content and C-13/C-12 isotopic ratios. Results from this study indicate that quantifiable levels above about 100 parts per trillion by volume were found at the Chebogue Point, Nova Scotia, site for several carbonyls, formaldehyde, acetaldehyde, acetone, propionaldehyde, methyl ethyl ketone, and benzaldehyde, for most 6-hour sampling periods. Six-hour averaged formaldehyde levels of ,0.5 to about 3.5 parts per billion were found during ...
The identification of developmental stages in fish eggs from plankton samples is often complicated by deformation of the embryos due to mechanical stress during the sampling procedure and by dehydration during formaldehyde fixation. The effects of formaldehyde fixation and mechanical stress on Baltic cod eggs (Gadus morhua callarias L.) were examined separately by visually comparing the morphological features of treated vs. live eggs of identical ontogenetic age. Microphotographs were made concurrently for documentation. In stage IA eggs, mechanical treatment resulted in scattered blastodiscs surrounded by single cells, while in further advanced stages the yolk membrane collapsed entirely, the yolk coagulated and the embryo extending over the yolk shrank. Formaldehyde fixation caused the yolk and the blastodisc or embryo to darken, and in some cases crystalline enclosures occurred. Eggs mechanically deformed during handling were clearly distinguishable from those that died prior to catching; ...
The Environmental Protection Agency has reopened through May 8 the comment period for a proposed rule designed to ensure that imported or domestically produced composite wood products meet the formaldehyde emission standards established by Congress in 2010. The EPA will also hold a meeting on this issue April 28 in Washington, D.C.. The proposed rule would limit how much formaldehyde may be emitted from hardwood plywood, medium-density fiberboard, particleboard and finished goods that are sold, supplied, offered for sale, manufactured or imported in the U.S. The emitted formaldehyde may be left over from the resin or composite wood making process or be released when the resin degrades in the presence of heat and humidity. This proposal includes testing requirements, laminated product provisions, product labeling requirements, chain of custody documentation, recordkeeping, a stockpiling prohibition, and enforcement provisions. It also contains an exemption from some testing and recordkeeping ...
Indiana University Environmental Health and Safety (IUEHS) has developed this Program to ensure a safe work environment and to protect the health and safety of IU faculty and staff who utilize or are potentially exposed to formaldehyde. This training applies to all occupational exposures to formaldehyde - formaldehyde gas, its solutions, and materials that release formaldehyde. This All Indiana University faculty and staff who have exposure to formaldehyde should take this training ...
The concentrations of formaldehyde, individual volatile organic compounds (VOCs) and total VOCs (TVOC) were measured in four new manufactured houses on three occasions over nine months following construction. Ventilation rates were also measured. A mass-balance model was used to calculate area-specific emission rates of the target analytes. Formaldehyde concentrations were all less than a guideline value of 50 ppb. One-half of the 58 target VOCs had median concentrations at or below 1 ppb. The most abundant VOCs were terpene hydrocarbons, ethylene glycol, hexanal, 2-butanone and acetic acid. Concentrations of hexanal, other aldehydes and acetic acid often exceeded their odor thresholds. The median TVOC concentration was 1.6 mg m-3. In general, there were no large decreases in the emission rates of individual VOCs or TVOC over the course of the study. The data suggested that wood products were a dominant source of VOCs in all houses.. ...
Global Urea Formaldehyde Resin Sales Market Report 2021 ​is a new market research publication announced by Reportstack. This report studies sales (consumption) of Urea Formaldehyde Resin in Global market, especially in North America, Europe, China, Japan, Southeast Asia and India, focuses on top players in these regions/countries, with sales, price, revenue and market share for each player in these regions, covering Hexion ...
FISH images of formalin fixed paraffin embedded sections of BAC. Red signals (white arrow heads) are indicative of the p53 gene probe, while green signals (yell
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As is the case with many other small, polar molecules, analysing for formaldehyde presents analysts with a real challenge.. If you attempt to analyse for CH2O by GC you quickly find that a flame ionisation detector gives no response, and with a molecular weight of just 30, GC-MS offers no help either; so to analyse this pesky compound by GC at low levels you need something exotic like a helium ionisation detector, which, for low level work is tricky to use.. If that isnt enough to contend with, formaldehyde can react in the sampling system, injector or column, which means that sometimes when the analysis should work - it just doesnt.. A common approach is to trap and derivatize gas phase samples on DNPH tubes and analyse the derivatives by LC using a fluorescence detector.. You can get decent results this way, but it is slow and time consuming.. This matters, because formaldehyde is toxic, a known human carcinogen and very useful. We manufacture more than 8.7 million tonnes of formaldehyde per ...
Archival formalin-fixed paraffin-embedded (FFPE) tissues represent an abundant source of clinical specimens; however their use is limited in applications involving analysis of gene expression due to RNA degradation and modification during fixation and processing. This study improved the quality of RNA extracted from FFPE by introducing a heating step into the selected extraction protocols. Further, it evaluated a novel pre-amplification system (PreAmp) designed to enhance expression analysis from tissue samples using assays with a range of amplicon size (62-164 bp). Results from the Bioanalyzer and TaqMan® data showed improvement of RNA quality extracted using the modified protocols from FFPE. Incubation at 70°C for 20 minutes was determined to be the best condition of those tested to disrupt cross-links while not compromising RNA integrity. TaqMan® detection was influenced by master mix, amplicon size and the incorporation of a pre-amplification step. TaqMan® PreAmp consistently achieved decreased
Abstract: We present a new concept, termed tissue lithography (TL), and its implementation which enables retrospective studies on formalin-fixed paraffin-embedded tissue sections. Tissue lithography uses a microfluidic probe to remove microscale areas of the paraffin layer on formalin-fixed paraffin-embedded biopsy sam
AirRadio A6 5 in 1 indoor air quality meter PM2.5 PM10 Temperature Humidity Formaldehyde HCHO by AirRadio at Humble Opinion. MPN: A6. Hurry! Limited time offer. Offer valid only while supplies last. Overview: AirRadio A6 simultaneously tracks five major factors of indoor air quality: PM2.5, PM10, Temperature, Humidity and Formaldehyde (HCHO).
TY - JOUR. T1 - How formaldehyde inhibits hydrogen evolution by [FeFe]-hydrogenases. T2 - Determination by 13C ENDOR of direct Fe-C coordination and order of electron and proton transfers. AU - Bachmeier, Andreas. AU - Esselborn, Julian. AU - Hexter, Suzannah V.. AU - Krämer, Tobias. AU - Klein, Kathrin. AU - Happe, Thomas. AU - McGrady, John E.. AU - Myers, William K.. AU - Armstrong, Fraser A.. PY - 2015/4/29. Y1 - 2015/4/29. N2 - Formaldehyde (HCHO), a strong electrophile and a rapid and reversible inhibitor of hydrogen production by [FeFe]-hydrogenases, is used to identify the point in the catalytic cycle at which a highly reactive metal-hydrido species is formed. Investigations of the reaction of Chlamydomonas reinhardtii [FeFe]-hydrogenase with formaldehyde using pulsed-EPR techniques including electron-nuclear double resonance spectroscopy establish that formaldehyde binds close to the active site. Density functional theory calculations support an inhibited super-reduced state having a ...
In other words, the panel found that all three streams of evidence used (where available) to evaluate chemicals toxicity to people - human epidemiological data, studies in laboratory animals, and mechanistic information - were consistent and strongly support the finding that formaldehyde causes cancer in people. And that it causes multiple types of cancer, at multiple sites in the body, via multiple routes of exposure, and through multiple mechanisms.. With regard to the controversy over whether formaldehyde causes leukemia and other blood-related cancers, the NAS panel noted (page 13, emphasis added):. The committee found clear and convincing epidemiologic evidence of an association between formaldehyde exposure and myeloid leukemia. There may also be an increase of other lymphohematopoietic cancers, although the evidence is less robust. … The mechanistic events that were considered by the committee as relevant to the plausibility of formaldehyde-associated tumors beyond the portal of entry ...
Urea formaldehyde foam insulation (UFFI) is again in the news. An Ontario Company has been ordered by the Federal Government to stop selling a formaldeh...
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Get information, facts, and pictures about formaldehyde at Encyclopedia.com. Make research projects and school reports about formaldehyde easy with credible articles from our FREE, online encyclopedia and dictionary.
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In this study, the synthesis of polypyrrole-b-vinyl aniline modified cyclohexanone formaldehyde resin (PPy-b-CFVAnR) block copolymers by a combination of condensation polymerization and chemical oxidative polymerization processes was examined. First, a cyclohexanone formaldehyde resin containing vinyl aniline units [4- vinyl aniline modified cyclohexanone formaldehyde resin (CFVAnR)] was prepared by a direct condensation reaction of 4-vinyl aniline and cyclohexanone with formaldehyde in an in situ modification reaction. CFVAnR and pyrrole (Py) were then used with a conventional method of in situ chemical oxidative polymerization. The reactions were carried out with heat-activated potassium persulfate salt in the presence of p-toluene sulfonic acid in a dimethyl sulfoxide-water binary solvent system; this led to the formation of desired block copolymers. The effects of the oxidant-monomer molar ratio, dopant existence, addition order of the reactants, and reaction temperature on the yield, ...
The Beauty industry has finally realized that there are many toxic chemicals out there in the everyday products we use. But one in particular has recently made headlines because it has been found in hair salon straightening products, called formaldehyde. Formaldehyde is a colorless gas that, at room temperature, emits a noxious odor. Health specialists believe it can cause cancer, allergies and disrupt the immune system. It has also been linked to incidents of hair loss, nosebleeds and respiratory problems. And now, formaldehyde also has been found in hair products used at home, such as shampoos and styling gels.. Good news/bad news: Formaldehyde in baby shampoo (yes, in products for babies) also made headlines last year-and for good reason. Last year, health products giant Johnson & Johnson, announced that it was phasing out formaldehyde-releasing chemicals in its baby care products.. The bad news is that that is just one health care products company responding to consumer concerns, there are ...
1. Bamboo Palm - removes formaldehyde, acts as a natural humidifier. 2. Snake Plant - absorbs nitrogen oxides and formaldehyde 3. Areca Palm - one of the best for general air cleanliness 4. Spider Plant - removes carbon monoxide and other toxins or impurities 5. Peace Lily - removes mold spores, formaldehyde and trichloroethylene 6. Gerbera Daisy - removes benzene, improves sleep by absorbing carbon dioxide and giving off more oxygen ...
Formaldehyde Market Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2017 - 2026. Global Formaldehyde Market- Overview Formaldehyde is a simple chemical compound made of oxygen, hydrogen, and carbon. It is extensively used in manufacturing building materials and various household products. Formaldehyde is also finding applicatio
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COLOGNE, Germany - September 25, 2016: At the 28th Congress of the European Society of Pathology, Bruker today announces that it has expanded its license agreement with 3M for processing of FFPE tissue sections. Mass spectrometric imaging by MALDI-TOF (MALDI Imaging) is a technology with great potential for many applications in medicine. It is the leading mass spectrometric method for the analysis of tissues, such as Formalin Fixed Paraffin Embedded (FFPE) tissues. Bruker´s MALDI Tissuetyper™ solution makes this technology broadly applicable due to the unprecedented 10 kHz laser speed, robustness and ease of use of the underlying rapifleX™ MALDI-TOF mass spectrometer. The MALDI Tissuetyper enables anatomical pathology research based on multiplexed proteomic profiles and the spatial distribution of proteomic biomarkers on FFPE tissue sections. The MALDI Tissuetyper is used for the direct, label-free analysis of a wide range of analytes directly from tissue sections. It provides complementary ...
This dataset provides profile-integrated column densities of formaldehyde (HCHO), hydroxyl (OH), and OH production rates, diel tropospheric mean OH concentrations, and uncertainties that were derived from direct observation data from selected profiles of NASA Atmospheric Tomography (ATom) mission 1 and 2 flights for the period July 29, 2016 to February 21, 2017. These calculated products were combined with coincident HCHO column retrievals from the Ozone Monitoring Instrument (OMI) to scale and extend the profile results to a global gridded (0.5 deg latitude x 0.625 deg longitude) product. In addition to OMI formaldehyde column data, model output products from the Global Modeling Initiative (GMI) including average tropopause height, scaling factor, column air mass, and column-average formaldehyde photolysis frequency are provided. The GMI model output products were used in calculations and are included for user convenience.. ...
Formaldehyde. Centers for Disease Control and Prevention, 21 June 2019, www.cdc.gov/niosh/topics/formaldehyde/. Formaldehyde- ... "Formaldehyde." American Cancer Society, 2014, www.cancer.org/cancer/cancer-causes/formaldehyde.html. ... exposure to formaldehyde at low levels from inhalation increases one's risk of cancer and the EPA classifies formaldehyde as a ... Formaldehyde, while not intentionally added, has also been found in some detergent cleansing products. Per the Centers for ...
"Formaldehyde". Dermatitis. 26 (1): 3-6. doi:10.1097/DER.0000000000000075. PMID 25581665. Heurung, Ashley R.; Raju, Srihari I.; ... Formaldehyde 2014 - Benzophenones 2013 - Methylisothiazolinone - This chemical is used as a preservative in many cosmetics, ...
... formaldehyde; inorganic lead; mercury compounds; nickel; POM (including PAHs); and styrene. Gebel, T. (1997-11-28). "Arsenic ...
In the laboratory, trioxane is used as an anhydrous source of formaldehyde. Formaldehyde Paraformaldehyde Dioxane 1,3,5- ... It is a stable cyclic trimer of formaldehyde, and one of the three trioxane isomers; its molecular backbone consists of a six- ... Other applications exploit its tendency to release formaldehyde. As such it is used as a binder in textiles, wood products, etc ... Trioxane is often used interchangeably with formaldehyde and with paraformaldehyde. It is a precursor for the production of ...
"Formaldehyde-releasers: Relationship to formaldehyde contact allergy, Part 2: Metalworking fluids and remainder". Contact ... Many of those with an allergy to quaternium-15 are also allergic to formaldehyde. At low pHs it would be expected to release ... Quaternium-15 along with formaldehyde has been banned in the EU since 2017 and a bill is under consideration in the US. ... It acts as an antimicrobial agent because it acts as a formaldehyde releaser, though doing so can also cause contact dermatitis ...
Reuss, Günther; Disteldorf, Walter; Gamer, Armin Otto; Hilt, Albrecht (15 June 2000). "Formaldehyde". Ullmann's Encyclopedia of ...
Other names in common use include NAD-linked formaldehyde dehydrogenase (incorrect), formaldehyde dehydrogenase (incorrect), ... NAD-dependent formaldehyde dehydrogenase, GD-FALDH, and NAD- and glutathione-dependent formaldehyde dehydrogenase. This enzyme ... Rose ZB, Racker E (1966). "Formaldehyde dehydrogenase". Methods Enzymol. 9: 357-360. doi:10.1016/0076-6879(66)09073-6. Liu L, ... Barber RD, Rott MA, Donohue TJ (1996). "Characterization of a glutathione-dependent formaldehyde dehydrogenase from Rhodobacter ...
According to the national standard, the maximum indoor formaldehyde concentration is 0.1 mg/m3, but the tests has shown that ... OHSREP (2015). "formaldehyde standard". Retrieved 2019-05-10. Chang, Tian (2017). "Retrieved from Indoor Air Pollution Levels ... In December 2017, some of the Ziroom rental houses under Lianjia were suspected of exceeding the formaldehyde standard. It ... the indoor formaldehyde concentration in Ziroom living room reached 1.018 mg/m3. Ziroom announced that consumers were able to ...
Vaccine hesitant people have also voiced strong concerns about the presence of formaldehyde in vaccines. Formaldehyde is used ... The human body continuously produces formaldehyde naturally and contains 50-70 times the greatest amount of formaldehyde ... the human body is capable of breaking down naturally occurring formaldehyde as well as the small amount of formaldehyde present ... Very small amounts of residual formaldehyde can be present in vaccines but are far below values harmful to human health. The ...
Methanol and formaldehyde. In 2007, the amounts of ethylene and propylene produced in steam crackers were about 115 Mt ( ... In 1909, Leo Hendrik Baekeland invented bakelite made from phenol and formaldehyde. In 1928, synthetic fuels were invented ...
In order to carry out the ChIP, the first step is cross-linking using formaldehyde and large batches of the DNA in order to ... Giresi, Paul G.; Kim, Jonghwan; McDaniell, Ryan M.; Iyer, Vishwanath R.; Lieb, Jason D. (June 2007). "FAIRE (Formaldehyde- ... Kim TH, Dekker J (April 2018). "Formaldehyde Cross-Linking". Cold Spring Harbor Protocols. 2018 (4): pdb.prot082594. doi: ...
H2 Further oxidation of the formaldehyde product during its production usually gives formic acid that is found in formaldehyde ... "Formaldehyde - Johnson Matthey". www.formox.com. Comyns, Alan E. (2014-02-21). Encyclopedic Dictionary of Named Processes in ... The Formox process produces formaldehyde. Formox is a registered trademark owned by Johnson Matthey. The process was originally ... C to produce formaldehyde according to the chemical equation: CH3OH + ½ O2 → H2CO + H2O. The silver-based catalyst is usually ...
... and phenol in the case of phenol-formaldehyde resins. The other safety concern is the slow release of formaldehyde over time. ... carpeting and caulking give off formaldehyde, as well as urea-formaldehyde foam insulation, which is banned in Canada for ... Amino-formaldehyde based resins are the best performing based on cost and ease of use. Urea melamine resins offer water ... Formaldehyde is classified by the WHO as a known human carcinogen. Fiberboard Glued laminated timber Masonite Pressed wood ...
The top three chemicals of concern are toluene, dibutyl phthalate (dbp) and formaldehyde - the so-called 'toxic trio'. Singer, ... There are no universal consumer safety standards for nail polish, however, and while formaldehyde has been eliminated from some ... One modifier used is tosylamide-formaldehyde resin. Thickening agents are added to maintain the sparkling particles in ... ISBN 978-0-313-32579-3. Tosylamide/Formaldehyde Resin. cosmeticsinfo.org Cunningham, J. (2013) "Color cosmetics" in Chemistry ...
"Ikea and formaldehyde". unknown (2003 to 6 February 2004). Retrieved 2 July 2013. "Formaldehyde and other VOC's". ikeafans.com ... After initial environmental issues like the highly publicized formaldehyde scandals in the early 1980s and 1992, IKEA took a ... Grayson, Jennifer (26 January 2011). "Eco Etiquette: Should I Freak Out About Formaldehyde In Baby Furniture?". HuffPost. See ... minimizing the use of formaldehyde in its products, including textiles; eliminating acid-curing lacquers; producing a model of ...
Relationship to formaldehyde allergy". Contact Dermatitis. 18 (4): 197-201. doi:10.1111/j.1600-0536.1988.tb02802.x. PMID ... DMDM hydantoin slowly releases formaldehyde and works as a preservative by making the environment less favorable to the ... DMDM hydantoin is an antimicrobial formaldehyde releaser preservative with the trade name Glydant. DMDM hydantoin is an organic ... in cosmetic products will also inevitably increase the risk of cosmetic dermatitis in consumers allergic to formaldehyde." ...
Formaldehyde is no longer used in cosmetics but has been replaced by formaldehyde releasers. Formaldehyde is dangerous to human ... The danger of formaldehyde is a major reason for the development of formaldehyde releasers which release formaldehyde slowly at ... "Formaldehyde", Formaldehyde, 2-Butoxyethanol and 1-tert-Butoxypropan-2-ol (PDF), IARC Monographs on the Evaluation of ... Relationship to formaldehyde allergy". Contact Dermatitis. 18 (4): 197-201. doi:10.1111/j.1600-0536.1988.tb02802.x. PMID ...
Urea-formaldehyde is always being slowly released from the edges and surface of MDF. When painting, coating all sides of the ... A urea-formaldehyde resin is then injected as the main bonding agent. The wax improves moisture resistance and the resin ... Formaldehyde resins are commonly used to bind together the fibres in MDF, and testing has consistently revealed that MDF ... For instance, E0 is classified as having less than 3 mg of formaldehyde out of every 100 g of the glue used in particleboard ...
Generally: Buffered 4% formaldehyde. In suspected immunologic disease: Fixation for immunofluorescence, with for example ...
This involved injecting formaldehyde into the body, as well as soaking it for two weeks in a bath of 7% formalin solution. The ... In this case he put a guppy in a box (10 × 3.5 × 5 centimetres) filled with formaldehyde. In 2003, under the title A Dead Shark ... "A formaldehyde frenzy as buyers snap up Hirst works", The Independent, 16 September 2008. Retrieved 16 September 2008. "Guppy, ... Hirst has made other works subsequently which also feature a preserved shark in formaldehyde in a vitrine. In September 2008, ...
Phenol formaldehyde resins (PF) yellow/brown, and commonly used for exterior exposure products. Melamine-formaldehyde resins ( ... A concern with some resins is the release of formaldehyde in the finished product, often seen with urea-formaldehyde bonded ... unreacted free formaldehyde and chemical decomposition of resin adhesives. When exorbitant amounts of formaldehyde are added to ... "Formaldehyde in pressed wood products". www.nicnas.gov.au. Retrieved March 12, 2018.CS1 maint: numeric names: authors list ( ...
Thailand has similar formaldehyde problems. Rumors spread that it was used on chicken as well. This was particularly bad in a ... Other substances found in the samples, such as borax, rhodamine, formaldehyde and yellow methanil-used as a dye-are not fit for ... CS1 maint: discouraged parameter (link) "Formaldehyde food scare in Indonesia". Sydney Morning Herald. Pharmaceutical Society ... CS1 maint: discouraged parameter (link) Formaldehyde found in school snacks. ...
It undergoes hydroxymethylation with formaldehyde. Me2P(O)H + CH2O → Me2P(O)CH2OH Many aldehydes effect a similar reaction. ...
Urea-formaldehyde insulation releases poisonous formaldehyde gas, causing indoor air quality problems. The chemical bond ... Do not use formaldehyde, CFCs, or HCFCs in manufacturing. True R-values and lower energy costs. More expensive than other types ... Formaldehyde is a common building block for the synthesis of more complex compounds and materials, it is extremely toxic to ... Any leftover formaldehyde would escape after the mixing. Most states outlawed it in the early 1980s after dangers to building ...
Interstellar formaldehyde was the first organic molecule detected in the interstellar medium. Perhaps the most powerful ... Formaldehyde), discovered in 1969 and significant for being the first observed organic, polyatomic molecule in interstellar ... "Microwave Detection of Interstellar Formaldehyde". Phys. Rev. Lett. 22 (13): 679-681. Bibcode:1969PhRvL..22..679S. doi:10.1103/ ... space The discovery of interstellar formaldehyde - and later, other molecules with potential biological significance such as ...
Wickramasinghe, N.C. (1974). "Formaldehyde Polymers in Interstellar Space". Nature. 252 (5483): 462-63. Bibcode:1974Natur.252.. ... who proposed a polymeric composition based on the molecule formaldehyde (CH2O). Interstellar molecules are formed by chemical ...
Condensation with formaldehyde gives hydroxypivaldehyde. Isobutyraldehyde is a retained trivial name under the IUPAC rules. ...
... is synthesized from adiponitrile, formaldehyde, and water via acid catalysis. Adiponitrile and formaldehyde (aqueous ... Similar to other formaldehyde-based thermoset resins, thermal behavior of the polymer is a function of the CH2O/ADN ratio ... Lenghaus, K; Qiao, G. G; Solomon, D. H (2001-04-01). "The effect of formaldehyde to phenol ratio on the curing and ... Polyamides from Formaldehyde and Dinitriles". Journal of the American Chemical Society. 73 (3): 1031-1035. doi:10.1021/ ...
Detection of organic compounds such as formaldehyde and sugars was reported by many workers, usually by exposure of a solution ... The first efforts that can be considered photogeochemical research can be traced to the "formaldehyde hypothesis" of Adolf von ... In addition to the main focus on synthesis of formaldehyde and simple sugars, other light-assisted reactions were occasionally ... Moore, B.; Webster (1913). "Synthesis by sunlight in relationship to the origin of life: synthesis of formaldehyde from carbon ...
Hillis, W. E.; Urbach, G. (1959). "Reaction of polyphenols with formaldehyde". Journal of Applied Chemistry. 9 (12): 665-673. ... Pizzi, A.; Valenezuela, J.; Westermeyer, C. (1994). "Low formaldehyde emission, fast pressing, pine and pecan tannin adhesives ... precursors in green chemistry notably to produce plastics or resins by polymerisation with or without the use of formaldehyde ...
Production of formaldehyde resins accounts for more than half of formaldehyde consumption. Formaldehyde is also a precursor to ... Main forms of formaldehyde Monomeric formaldehyde (subject of this article). Trioxane is a stable cyclic trimer of formaldehyde ... 0.09 ppm formaldehyde for particleboard, 0.11 ppm formaldehyde for medium-density fiberboard, and 0.13 ppm formaldehyde for ... 0.09 ppm formaldehyde for particleboard, 0.11 ppm formaldehyde for medium-density fiberboard, and 0.13 ppm formaldehyde for ...
In enzymology, a formaldehyde dismutase (EC 1.2.99.4) is an enzyme that catalyzes the chemical reaction 2 formaldehyde ⇌ {\ ... The systematic name of this enzyme class is formaldehyde:formaldehyde oxidoreductase. Other names in common use include ... displaystyle \rightleftharpoons } formate + methanol Hence, this enzyme has one substrate, formaldehyde, and two products, ...
QUANTOFIX Formaldehyde test strips easily and quickly detect formaldehyde in solutions. All necessary reagents included, ... In closed cooling or heating circuits Formaldehyde is used as biocide. Here, QUANTOFIX® Formaldehyde serves to easily monitor ... Formaldehyde is used for a large variety of products, ranging from shampoo to clothes. In large quantities it is used as raw ... Formaldehyde is poisonous and can cause allergic reactions as well as irritations of skin, eyes and airways. If such reactions ...
Most formaldehyde produced in the United States is for the manufacture of resins, such as urea-formaldehyde, used to make the ... Formaldehyde is a colorless, flammable, strong-smelling chemical widely used to make home building products. ... Most formaldehyde produced in the United States is for the manufacture of resins, such as urea-formaldehyde, used to make the ... What evidence is there that formaldehyde causes cancer?. The 12th Report on Carcinogens (RoC) based its listing of formaldehyde ...
Formaldehyde (CH₂O) is a colorless, highly toxic, and flammable gas at room temperature. It is used in the production of ... Repeated exposure to formaldehyde can possibly lead to cancer. Workers may be harmed by exposure to formaldehyde. The level of ... OSHA Formaldehyde: 1910.1048external icon. *OSHA Hazard Alert: Hair Smoothing Products That Could Release Formaldehydeexternal ... WHO CICADS 40: Formaldehydeexternal icon. *International Agency for Research on Cancer (IARC) Monograph (Vol. 88): Formaldehyde ...
Is Big Chem now trying to suppress the well-known dangers of formaldehyde? ... Formaldehyde was a well-known and well-used compound by the middle of the 19th century, but by the turn of the century, ... Formaldehyde was a well-known and well-used compound by then, discovered by the Russian chemist Alexander Butlerov in 1859; ... And also a Formaldehyde and Cancer Risk fact sheetfrom the National Cancer Institute that reviews much of that very ...
Formaldehyde can cause irritation of the skin, eyes, nose, and throat. High levels of exposure may cause some types of cancers ... Everyone is exposed to small amounts of formaldehyde in air and some foods and products. ... What happens to formaldehyde when it enters the environment?. * Once formaldehyde is in the air, it is quickly broken down, ... How can formaldehyde affect children?. A small number of studies have looked at the health effects of formaldehyde in children ...
... is a aldehyde (CHEBI:17478) formaldehyde (CHEBI:16842) is a one-carbon compound (CHEBI:64708) ... formaldehyde (CHEBI:16842) has role Escherichia coli metabolite (CHEBI:76971) formaldehyde (CHEBI:16842) has role Saccharomyces ... formaldehyde (CHEBI:16842) has role allergen (CHEBI:50904) formaldehyde (CHEBI:16842) has role carcinogenic agent (CHEBI:50903 ... formaldehyde (CHEBI:16842) has role disinfectant (CHEBI:48219) formaldehyde (CHEBI:16842) has role EC 3.5.1.4 (amidase) ...
Formaldehyde sample results are listed in Table 1.. Table 1. Formaldehyde sample locations and results.. Location. Formaldehyde ... Formaldehyde. Formaldehyde is used in the production of fertilizer, paper, photographic film, plywood, and urea-formaldehyde ... Formaldehyde can be absorbed through the lungs or skin. The first symptoms associated with formaldehyde exposure, at ... Individuals vary in their tolerance and susceptibility to acute formaldehyde exposures. Formaldehyde exposure has been ...
Formaldehyde Hazard Communication & Labeling Requirements.pdf. View Download. 184k. v. 1 Jul 13, 2016, 8:52 AM Bill Graves. ... ASTDR formaldehyde addendum.pdf. View Download. 567k. v. 1 Apr 18, 2013, 5:37 AM Bill Graves. ... ASTDR formaldehyde Chart.pdf. View Download. 27k. v. 1 Apr 18, 2013, 5:37 AM Bill Graves. ... Formaldehyde Employee Notification.pdf. View Download. 32k. v. 1 Jul 13, 2016, 8:49 AM Bill Graves. ...
Toxicological Profile for Formaldehyde. CAS# 50-00-0. Addendum to the ProfileAddendum to the Profile[1.7 MB] Toxicological ... Toxicological profile for Formaldehyde. Atlanta, GA: U.S. Department of Health and Human Services, Public Health Service. ...
Formaldehyde may be contained in wood-based materials, e.g. for construction and furniture, as a constituent of adhesives, and ... Topics› Health› Environmental impact on people› Chemical substances›Formaldehyde. Formaldehyde. Click to enlarge. Wood-based ... Formaldehyde - New classification by EU. Formaldehyde has been in use for a long a time. Originally, it was used mainly as a ... How can formaldehyde harm my health?. The effects of formaldehyde on human health have been assessed by many national and ...
ACUTE FORMALDEHYDE POISONING. Br Med J 1912; 2 doi: https://doi.org/10.1136/bmj.2.2694.350 (Published 17 August 1912) Cite this ...
Formaldehyde is a disinfectant which is effective against bacteria, fungi and many viruses. ... Veracur gel (formaldehyde). Veracur gel contains formaldehyde solution. Formaldehyde is a disinfectant which is effective ... Veracur gel contains formaldehyde solution. Formaldehyde is a disinfectant which is effective against bacteria, fungi and many ... Formaldehyde vapour is irritant to the eyes, nose and respiratory tract and may cause coughing, difficulty swallowing and ...
Lumber Liquidators Offers Flooring Customers Free Air Tests for Formaldehyde. Dec. 21, 2017. The air quality testing follows a ... when many dislocated families living in contaminated trailers reported illnesses linked to elevated levels of formaldehyde, the ...
Spence, R.; Wild, W., The Vapor Pressure Curve of Formaldehyde and Some Related Data, J. Chem. Soc., 1935, 1935, 506-9. [all ... Spence, R.; Wild, W., The Vapour-Pressure Curve of Formaldehyde, and Some Related Data, J. Chem. Soc., 1935, 138, 506-509, ... Other names: Methanal; BFV; Fannoform; Formaldehyde, gas; Formalin; Formalith; Formic aldehyde; Formol; Fyde; Lysoform; Methyl ... The vapour-pressure curve of formaldehyde, and some related data, J. Chem. Soc., 1935, 506, https://doi.org/10.1039/ ...
Brand, J.C.D.; Reed, R.I., The electronic spectrum of formaldehyde. Part II. Mechanisms of dissociation of formaldehyde and the ... Guyon, P.M.; Chupka, W.A.; Berkowitz, J., Photoionization mass spectrometric study of formaldehyde H2CO, HDCO, and D2CO, J. ... Price, W.C., The far ultraviolet absorption spectra of formaldehyde and the alkyl derivatives of H, O and H2S, J. Chem. Phys., ... Baker, A.D.; Baker, C.; Brundle, C.R.; Turner, D.W., The electronic structures of methane, ethane, ethylene and formaldehyde ...
If a designer of emergency housing set out to expose climate refugees to as much formaldehyde as possible, what would he do? ... FEMA Trailers Optimizing Formaldehyde Exposure. If a designer of emergency housing set out to expose climate refugees to as ... If a designer of emergency housing set out to expose climate refugees to as much formaldehyde as possible, what would he do? ... Park those trailers out in the southern sun, where the heat will "bake" off formaldehyde gas at the highest possible rate, and ...
High humidity can also make the odor of formaldehyde more apparent.. Formaldehyde Testing. There are testing kits available to ... Health Risks of Formaldehyde Exposure. Formaldehyde exposure can cause coughing, wheezing, nausea, skin irritation and watery ... Formaldehyde is a gas that is colorless, yet harbors a strong odor that renders it quite noticeable. It is sometimes mixed with ... explains that formaldehyde exposure should not exceed .1ppm (part per million). Higher levels may need to be addressed in order ...
What is formaldehyde?. Formaldehyde is a colorless, strong-smelling, flammable chemical that is produced industrially and used ... How are people exposed to formaldehyde?. People are exposed primarily by inhaling formaldehyde gas or vapor from the air or by ... Workers who produce formaldehyde or products that contain formaldehyde-as well as laboratory technicians, certain health care ... Which cancers are associated with exposure to formaldehyde?. Studies of workers exposed to high levels of formaldehyde, such as ...
A study released last week by the National Cancer Institute strengthens the link between exposure to formaldehyde and several ... Back when the EPA delayed its formaldehyde assessment in 2004, the agency was working on a different formaldehyde rule -- this ... Formaldehyde is one of dozens of chemicals sitting in a backlog awaiting final EPA risk assessment through the agencys ... The study shows that workers exposed to higher amounts of formaldehyde had a 37 percent greater risk of death from blood and ...
How strict legislation and new technology promise to reduce formaldehyde emissions and keep harmful materials out of American ... Vesta substitutes urea with phenol-formaldehyde, an alternative often described as no-added U-F, which emits formaldehyde at a ... One completely formaldehyde-free alternative is Columbia Forest Products PureBond plywood, a hardwood panel that uses a soy- ... More alternatives to formaldehyde-based products can be found on the CPAs first published list of CARB-compliant manufacturers ...
Urea-formaldehyde (UF) and phenol formaldehyde (PF) resins are used in foam insulations, as adhesives in the production of ... Formaldehyde is common to the chemical industry. It is well known as a preservative in medical laboratories, as an embalming ... Exposures to formaldehyde are addressed in specific OSHA standards for general industry, maritime, and construction. ... Hair Salons: Facts about Formaldehyde in Smoothing Products.. *Federal OSHA letter to Brazilian Blowout distributor seeking ...
Whether there are dangerous levels of formaldehyde in e-cigarettes or not has been a contentious issue for years. A new study ... Formaldehyde is a naturally occurring chemical that is used in the manufacture of building materials and many household ... It identified new forms of formaldehyde in e-cigarette vapor that were at levels five to 15 times higher than those in normal ... This time, they concluded that the risk posed by the formaldehyde content of e-cigarettes is, in fact, greater than they had ...
... formaldehyde and other potentially harmful chemicals will be removed from its products ... Formaldehyde has been identified as a carcinogen; it is not listed on labels but is released over time by two common ... Johnson & Johnson has pledged that, by the end of 2015, formaldehyde and other potentially harmful chemicals will be removed ...
... formaldehyde-free binder composition comprising a modified copolymer of maleic anhydride and a vinyl aromatic compound such as ... Formaldehyde-free aqueous binders. US6099773. Feb 19, 1997. Aug 8, 2000. Basf Aktiengesellschaft. Formaldehyde-free binder for ... By "formaldehyde-free" is meant that the composition is substantially free from formaldehyde, and does not liberate substantial ... less than 1 ppm formaldehyde, based on the weight of the composition, is present in a formaldehyde-free composition. In order ...
... and formaldehyde (a highly reactive gas obtained from methane). Urea-formaldehyde resins are used mostly as adhesives for the ... Urea-formaldehyde resin, any of a class of synthetic resins obtained by chemical combination of urea (a solid crystal obtained ... Urea formaldehyde began to be replaced in molded articles in the 1950s by melamine-formaldehyde resin and by new thermoplastic ... melamine-formaldehyde resin. ,urea-formaldehyde resin in its processing and applications, but melamine resins are more moisture ...
Also known as phenolic resins, phenol-formaldehyde polymers were the first completely synthetic polymers to be commercialized. ... applied for a patent on a phenol-formaldehyde thermoset that eventually became known by the trademarked name Bakelite. ... Phenol formaldehyde: Many people date the beginning of the modern plastics industry to 1907, when Leo Hendrik Baekeland, a ... Urea-formaldehyde polymers. Resins made from urea-formaldehyde polymers began commercial use in adhesives and binders in the ...
  • Repeated exposure to formaldehyde can possibly lead to cancer. (cdc.gov)
  • Workers may be harmed by exposure to formaldehyde. (cdc.gov)
  • The following resources provide information about occupational exposure to formaldehyde. (cdc.gov)
  • NIOSH Worker Health Study Summaries-Embalming Students (Formaldehyde Exposure) -The NIOSH Worker Notification Program notifies workers and other stakeholders about the findings of these studies. (cdc.gov)
  • Criteria for a Recommended Standard: Occupational Exposure to Formaldehyde, DHHS (NIOSH) Publication No. 74-126 (1976) -Presents a standard to prevent the adverse effects of exposure to formaldehyde over a working lifetime. (cdc.gov)
  • The highest potential exposure occurs in the formaldehyde-based resins industry. (cdc.gov)
  • How can families reduce the risk of exposure to formaldehyde? (cdc.gov)
  • Removing formaldehyde sources in the home can reduce exposure. (cdc.gov)
  • Formaldehyde cannot be reliably measured in blood, urine, or body tissues following exposure. (cdc.gov)
  • The first symptoms associated with formaldehyde exposure, at concentrations ranging from 0.1 to 5 ppm, are burning of the eyes, tearing, and general irritation of the upper respiratory tract. (cdc.gov)
  • Formaldehyde exposure has been identified as a possible causative factor in cancer of the upper respiratory tract in a proportionate mortality study of workers in the garment industry. (cdc.gov)
  • A number of scientific studies on the effects of high exposure to formaldehyde at the workplace found an incidence of cancer of the nasal cavity and nasopharynx among exposed workers over their further lifetime that was higher than would be expected without exposure to formaldehyde. (umweltbundesamt.de)
  • Advance notice of proposed rulemaking: occupational exposure to formaldehyde, 1910.1000, Table Z-2. (osha.gov)
  • Comments and information relevant to the reduction of formaldehyde exposure are requested by August 15, 1985. (osha.gov)
  • Notice that OSHA intends to file its final action in its pending rulemaking [50 FR 50412, December 10, 1985] concerning Occupational Exposure to Formaldehyde on December 2, 1987. (osha.gov)
  • Park those trailers out in the southern sun, where the heat will "bake" off formaldehyde gas at the highest possible rate, and you have a recipe for optimum exposure. (treehugger.com)
  • Pressed wood is used in the production of many manufactured homes and accounts for the majority of formaldehyde exposure. (ehow.com)
  • Advanced Chemical Sensors, Inc. explains that formaldehyde exposure should not exceed .1ppm (part per million). (ehow.com)
  • Formaldehyde exposure can cause coughing, wheezing, nausea, skin irritation and watery eyes during the short-term. (ehow.com)
  • In 1980, researchers at the National Cancer Institute did identify an association between formaldehyde exposure and cancer-specifically leukemia and brain cancer. (ehow.com)
  • This public health statement tells you about formaldehyde and the effects of exposure. (cdc.gov)
  • Another potential source of exposure to formaldehyde is the use of unvented fuel-burning appliances, such as gas stoves, wood-burning stoves, and kerosene heaters. (cancer.gov)
  • Which cancers are associated with exposure to formaldehyde? (cancer.gov)
  • The U.S. Environmental Protection Agency recommends the use of "exterior-grade" pressed-wood products to limit formaldehyde exposure in the home. (cancer.gov)
  • A study released last week by the National Cancer Institute strengthens the link between exposure to formaldehyde and several forms of cancer, including leukemia. (lexisnexis.com)
  • NCI researchers still have not discovered the biological mechanism by which formaldehyde exposure can cause leukemia. (lexisnexis.com)
  • Beauty salons and mortuaries in recent years have received numerous OSHA citations for violating federal exposure standards for formaldehyde. (businessinsurance.com)
  • Although beauty salons and mortuaries have drawn the most citations and fines for violating the federal exposure standard for formaldehyde among smaller companies, employer awareness of the hazards of this carcinogenic chemical and the details of complying with the standard vary widely in these two predominantly middle-market industries. (businessinsurance.com)
  • An OSHA hazard alert said the agency is investigating "complaints from stylists and hair salon owners about exposure to formaldehyde while using hair-smoothing products such as Brazilian Blowout, Brasil Cacau Cadiveau, Keratin Complex Smoothing Therapy and Marcia Teixeira. (businessinsurance.com)
  • In September 2011, OSHA said it cited two manufacturers and distributors of hair-straightening products, including Keratin Complex Smoothing Therapy and Marcia Teixeira, "for failing to ensure that material safety data sheets reflected the content of formaldehyde in the product or the hazards associated with formaldehyde exposure, as well as for failing to develop a written hazard communication program for their own employees. (businessinsurance.com)
  • The PBA posted "What You Don't Know Can Hurt You: A Message from OSHA" on its website, stating that OSHA "has found that some hair-smoothing products may contain formaldehyde, may release formaldehyde at levels above OSHA's permissible exposure limits during use and may be mislabeled, all of which can pose health risks to salon workers. (businessinsurance.com)
  • Salon owners across the country surveyed by the Washington-based nonprofit Environmental Working Group last spring were either unaware of the formaldehyde content in Keratin Complex Smoothing Therapy and similar products, minimized the danger of exposure or considered the issue "controversial. (businessinsurance.com)
  • As federal OSHA is aware, the only accurate method of testing free formaldehyde exposure is via controlled air monitoring. (businessinsurance.com)
  • On December 12, 2016, EPA published in the Federal Register a final rule to reduce exposure to formaldehyde emissions from certain wood products produced domestically or imported into the United States. (epa.gov)
  • That assessment was about 10,000 times weaker than the level previously used by the EPA in setting standards for formaldehyde exposure. (historycommons.org)
  • The report also links formaldehyde to some types of leukemia and cancers of the nasal cavity, especially in manufacturing plant workers and embalmers, who have more frequent exposure to the chemical. (care2.com)
  • Consumers can reduce their exposure to formaldehyde by avoiding pressed-wood products or buying only those that are labeled as U.L.E.F. (ultra-low-emitting formaldehyde), N.A.F. (no added formaldehyde) or C.A.R.B. (California Air Resources Board) Phase 1 or Phase 2 compliant. (care2.com)
  • Health effects from formaldehyde exposure can include nose and throat irritation, a burning sensation of the eyes, difficulty in breathing, and it can also trigger asthma symptoms. (ul.com)
  • CARB evaluated formaldehyde and found that one of the major sources of exposure is from inhalation of formaldehyde emitted from composite wood products. (ul.com)
  • WASHINGTON (May 2, 2017) - A newly published reanalysis of raw data from a study widely used by chemical assessment agencies to set hazard assessments for formaldehyde shows no link between formaldehyde exposure and leukemia. (eurekalert.org)
  • Kenneth A. Mundt, Ph.D., the lead author of the reanalysis and Health Science Global Practice Network Leader and Director of Applied Epidemiology for Ramboll Environ, has led several studies that analyze the health risks from formaldehyde exposure. (eurekalert.org)
  • The researchers suggested that the observed differences might indicate a mechanism linking formaldehyde exposure to leukemia. (eurekalert.org)
  • In their paper, Mundt and his co-authors analyzed raw data from the Zhang study, including previously unavailable data on individual workers' exposure to formaldehyde. (eurekalert.org)
  • The authors concluded: "Taken as a whole, the epidemiological evidence from the most recent analyses and follow-up of available cohorts provides little if any evidence of a causal association between formaldehyde exposure and AML (acute myelogenous leukemia). (eurekalert.org)
  • For example, in its 2012 monograph on formaldehyde, the International Agency for Research on Cancer (IARC) determined "that the epidemiologic evidence shows that occupational exposure to formaldehyde causes leukemia. (eurekalert.org)
  • The EPA and other agencies evaluating chemical risk from exposures must consider the entire weight of evidence on formaldehyde when setting exposure limits. (eurekalert.org)
  • The California Air Resources Board (CARB) declared in 1992 that there was no safe level of formaldehyde exposure. (nist.gov)
  • California has set standards to limit formaldehyde exposure that are being adopted across the country and products are being forced to reduce the amount of this carcinogenic chemical in manufacturing. (iaqa.org)
  • Is exposure to formaldehyde dangerous? (dyson.co.uk)
  • While in-home formaldehyde readings at any given time may appear low, potential continuous exposure through off-gassing can sometimes occur over multiple years. (dyson.co.uk)
  • The CARB Airborne Toxic Control Measure (ATCM) 93120 regulation is designed to reduce formaldehyde emissions and exposure in hardwood plywood, particle board and MDF. (ul.com)
  • has been awarded the Kammer Merit in Authorship Award for its review of the data from a critical epidemiological study used by scientific agencies to assess health risk from formaldehyde exposure. (news-medical.net)
  • The winning paper, titled Formaldehyde Exposure and Mortality Risks from Acute Myeloid Leukemia and Other Lymphohematopoietic Malignancies in the US National Cancer Institute Cohort Study of Workers in Formaldehyde Industries, concluded that there is no epidemiological evidence from the National Cancer Institute (NCI) cohort supporting an association between formaldehyde exposure and acute myeloid leukemia (AML). (news-medical.net)
  • The findings from this analysis do not support a finding that formaldehyde exposure is a cause of leukemia,' said Harvey Checkoway, Ph.D., lead author of the reanalysis and Professor of Family Medicine & Public Health at the University of California, San Diego. (news-medical.net)
  • In the original analysis, NCI investigators defined 'peak' exposure to formaldehyde on a relative basis with respect to individual workers' exposures histories. (news-medical.net)
  • The result of this analysis adds to the weight of evidence that formaldehyde exposure in the workplace does not cause AML, the LHM of greatest concern. (news-medical.net)
  • Any draft assessment that attempts to associate formaldehyde exposure with leukemia is scientifically indefensible," Scruggs said, adding that the ACC questions the "scientific rigor and methodologies" used by IRIS. (reuters.com)
  • EPA action is needed to rapidly reduce exposure to toxic chemicals, such as formaldehyde*, which is still in widespread use, particularly in building materials, binders, resins, and composite wood products, used to make everything in a home from carpets to countertops to cabinets to couches. (saferchemicals.org)
  • Formaldehyde is also used as a preservative in foods (e.g. certain cheeses, dried food, and fish), though these are not considered major sources of exposure. (saferchemicals.org)
  • Long-term exposure to formaldehyde is known to cause cancer of the nasal passages and throat, leukemia, and other cancers of the respiratory tract. (saferchemicals.org)
  • Embalmers can be at risk of dangerous exposure to Formaldehyde. (environmental-expert.com)
  • If you reduce your overall exposure to formaldehyde, you can make your home safer and healthier. (thisoldhouse.com)
  • And using products with no added formaldehyde is one way to reduce your exposure. (thisoldhouse.com)
  • US EPA recommends that you minimize your exposure to formaldehyde. (thisoldhouse.com)
  • Exposure to a lot of formaldehyde in a short period can produce immediate symptoms like burning of the eyes and throat, and can aggravate asthma. (charlotteobserver.com)
  • Most consumers will probably never have a problem with exposure to formaldehyde, though it can have serious health implications for people who work with the chemical in factories. (nytimes.com)
  • People who have allergic contact dermatitis caused by formaldehyde in clothing typically become hypersensitive because of some other exposure, like a worker with chapped hands who has handled metal-working fluids that contained the chemical, or someone who applied moisturizer with a formaldehyde preservative on inflamed skin, said Susan T. Nedorost, associate professor of dermatology and environmental health sciences at University Hospitals Case Medical Center in Cleveland. (nytimes.com)
  • The Department of Health and Human Services (HHS) determined in 2011 that formaldehyde is a known human carcinogen based on sufficient human and animal inhalation studies. (cdc.gov)
  • NIOSH has classified formaldehyde as a suspected human carcinogen and recommends that exposures be reduced to the lowest feasible concentration. (cdc.gov)
  • More than 20 years ago, the Environmental Protection Agency reported that formaldehyde can cause acute respiratory problems and can be a probable carcinogen. (popularmechanics.com)
  • Since the early 1980s, doctors have suspected that formaldehyde is a carcinogen - a substance capable of causing cancer in living tissue. (medicalnewstoday.com)
  • And finally, in 2011, after many studies, the Department of Health and Human Services' National Toxicology Program officially confirmed that formaldehyde is a human carcinogen. (medicalnewstoday.com)
  • Formaldehyde is a human carcinogen, or cancer-causing agent, according to OSHA. (reference.com)
  • Formaldehyde was declared a toxic substance by Canadians in 1999, some uses have been banned in Europe and the International Agency for Research on Cancer has called it a known carcinogen. (care2.com)
  • Formaldehyde is also a known human carcinogen. (ul.com)
  • DMDM Hydantoin - forms formaldehyde a carcinogen. (ewg.org)
  • Private and federal testing undertaken between 2006 and 2008 determined that wood products used in the trailers' construction were emitting formaldehyde ( a known carcinogen ) at a high rate, resulting in concentrations that were five to 40 times that found in the average home. (nist.gov)
  • The International Agency for Research on Cancer (IARC) recognizes formaldehyde as a human carcinogen, so does the U.S. Department of Health and Human Services (DHHS). (iaqa.org)
  • I blogged last month about the Trump EPA's corrupt actions to bury the long-awaited assessment of the carcinogen formaldehyde conducted by the agency's Integrated Risk Information System (IRIS) program. (edf.org)
  • The International Agency for Research on Cancer (IARC) has also classified formaldehyde as a human carcinogen. (webwire.com)
  • The National Toxicology Program classifies formaldehyde as a "known human carcinogen. (rollcall.com)
  • CHARLESTON, W.Va.-State officials and a water company strongly disputed a scientist's claim Wednesday that residents were likely breathing in traces of formaldehyde while showering after the chemical spill, saying the chemical that tainted the water supply only produces the carcinogen at extremely high temperatures. (twincities.com)
  • According to the CDC, formaldehyde is a known carcinogen. (twincities.com)
  • The EPA already lists formaldehyde, used in building materials like plywood and foam insulation, as a probable carcinogen. (reuters.com)
  • While formaldehyde is a known carcinogen, its long-term health effects are not well understood. (charlotteobserver.com)
  • Late last week, the Department of Health and Human Services classified formaldehyde as "a known carcinogen," adding its verdict to two similar reports released by key agencies since 2009. (truthout.org)
  • Christopher De Rosa, a former senior toxicologist for the Centers for Disease Control, said the HHS study might "galvanize the EPA's political will to go forward with the risk assessment because it represents a convergence of opinions worldwide in terms of formaldehyde being a known carcinogen. (truthout.org)
  • Most people won't develop skin problems with the low levels of formaldehyde used in wrinkle-free clothing, but most MNN readers already know formaldehyde's a known carcinogen. (mnn.com)
  • There is a multitude of products which contain formaldehyde and may outgas formaldehyde to indoor air. (umweltbundesamt.de)
  • Disinfectants, cosmetics and textiles can also contain formaldehyde. (umweltbundesamt.de)
  • There are currently no other medicines available in the UK that contain formaldehyde as the active ingredient. (netdoctor.co.uk)
  • 1. PUBLIC HEALTH STATEMENT from cars without catalytic converters or those using oxygenated gasoline also contain formaldehyde. (cdc.gov)
  • Workers who produce formaldehyde or products that contain formaldehyde-as well as laboratory technicians, certain health care professionals, and mortuary employees-may be exposed to higher levels of formaldehyde than the general public. (cancer.gov)
  • E-cigarettes examined: Do they contain formaldehyde? (medicalnewstoday.com)
  • By contrast, beauty salon owners and stylists generally lack a scientific background and don't have a keen awareness of the danger of working with products that contain formaldehyde, experts say. (businessinsurance.com)
  • www.arb.ca.gov However, our exposures are still way too high and consumers need to be aware of the amount of products that contain formaldehyde. (iaqa.org)
  • Also read your personal care products, many contain formaldehyde or derivatives of this chemical. (iaqa.org)
  • As well as selecting DIY and renovation products that don't contain formaldehyde, increasing ventilation and using purification within a space can help to remove the gas from your home. (dyson.co.uk)
  • Even if the products used in the treatment do not explicitly contain formaldehyde, they can include the ingredients methylene glycol or formalin, which produce traces of formaldehyde gas when heated - a key step in the process. (nbcbayarea.com)
  • Aqueous solutions used as disinfectants and preservatives also contain formaldehyde and it can also be detected in personal care and cleaning products. (dguv.de)
  • Today, the building materials that contain formaldehyde have aged. (homeenergy.org)
  • A fact sheet from the U.S. Environmental Protection Agency on indoor air quality and the risks posed by formaldehyde emissions from resins used in pressed word products. (wired.com)
  • It is used in the production of fertilizer, paper, plywood, and urea-formaldehyde resins. (cdc.gov)
  • First off, he might cover as much interior surface area as possible with particleboard and composites heavily laced with urea formaldehyde resins and glues: building envelope, doors, flooring. (treehugger.com)
  • Urea-formaldehyde resin , any of a class of synthetic resins obtained by chemical combination of urea (a solid crystal obtained from ammonia ) and formaldehyde (a highly reactive gas obtained from methane ). (britannica.com)
  • Urea-formaldehyde resins are used mostly as adhesives for the bonding of plywood, particleboard, and other structured wood products. (britannica.com)
  • Resins made from urea-formaldehyde polymers began commercial use in adhesives and binders in the 1920s. (britannica.com)
  • In industrial production, urea resins are made by the condensation of formaldehyde and urea in an aqueous solution , using ammonia as an alkaline catalyst . (britannica.com)
  • Patents for hard, transparent thermosetting resins based on urea and formaldehyde were granted to German and British chemists in the early 1920s. (britannica.com)
  • Urea formaldehyde began to be replaced in molded articles in the 1950s by melamine-formaldehyde resin and by new thermoplastic resins such as polystyrene . (britannica.com)
  • Like phenolic and melamine resins, urea-formaldehyde polymers are now employed primarily as wood adhesives. (britannica.com)
  • Because urea-formaldehyde resins are lighter in colour than phenol-formaldehyde resins , they are traditionally reserved for interior plywood and decorative paneling, but concerns over the release of formaldehyde into the air have led to substitution even here by phenolics. (britannica.com)
  • Also known as phenolic resins , phenol-formaldehyde polymers were the first completely synthetic polymers to be commercialized. (britannica.com)
  • These compounds are similar to urea-formaldehyde resins in their processing and applications. (britannica.com)
  • Melamine formaldehyde resins are used as particleboard and plywood adhesives. (ehow.co.uk)
  • Formaldehyde is mainly used in the production of industrial resins and coatings. (ul.com)
  • Wood products such as hardwood plywood, particleboard, and medium-density fiberboard (MDF) were targets for regulation given the large volume sold and the use of formaldehyde-based resins to hold the wood components together. (nist.gov)
  • Formaldehyde is a colourless gas pollutant, which can be released by furniture and wooden products containing formaldehyde-based resins. (dyson.co.uk)
  • any of a group of resins formed by the interaction of urea and formaldehyde under conditions that include heat and pH control: used chiefly in the manufacture of buttons, baking enamels, and for making fabrics wrinkle-resistant. (dictionary.com)
  • For instance, it is used in the production of phenol formaldehyde resins and aminoplasts, which in turn are used, for example, to glue chipboard, plywood and edge-glued panels. (dguv.de)
  • Unfortunately, formaldehyde from UF resins can migrate into the air. (homeenergy.org)
  • The UF resins are economically cost-effective in nature than other resins such as phenol-formaldehyde resins, thus making it more popular among industries such as textiles, papers, foundry, etc. (openpr.com)
  • The demand for good quality and economically viable adhesives and resins is expected to fuel the market of urea formaldehyde. (openpr.com)
  • Melamine formaldehyde resins are thermally resistant due to which adhesives which are manufactured from melamine formaldehyde offer diverse advantages which contribute to the consumer product value. (pitchengine.com)
  • NIOSH Skin Notation Profiles: Formaldehyde/Formalin -Understanding the risks related to skin contact with chemicals is critical. (cdc.gov)
  • Another problem is that, for the lay person, there are many unrecognizable names for formaldehyde, including methylene glycol, formalin and oxomethane, according to OSHA. (businessinsurance.com)
  • Formaldehyde (or formalin) was used in cosmetics as a preservative. (intertek.com)
  • Russian doctors accidentally filled the IV bag of a 27-year-old woman with formalin, a solution containing formaldehyde, which led to her death. (freep.com)
  • Russian doctors accidentally filled the IV bag of a 27-year-old woman with formalin, a solution containing formaldehyde, which led to her death, the Washington Post reported, quoting Tass, Russia's state-controlled news agency. (freep.com)
  • Formaldehyde is commonly used as a preservative. (cancer.gov)
  • Industrially, formaldehyde is used as a disinfectant, and as a preservative in medical laboratories and mortuaries. (medicalnewstoday.com)
  • DMDM hydantoin is an antimicrobial formaldehyde releaser preservative. (ewg.org)
  • The preservative in question: formaldehyde. (howstuffworks.com)
  • The widely used preservative formaldehyde, and styrene, found in food containers and coffee cups, are among eight agents added to a list of known and suspected carcinogens by the U.S. National Institutes of Health. (bloomberg.com)
  • Everyone is exposed to small amounts of formaldehyde in air and some foods and products. (cdc.gov)
  • Small amounts of formaldehyde are naturally produced by plants, animals, and humans. (cdc.gov)
  • Tobacco smoke contains relatively large amounts of formaldehyde, and even burning candles can be a source of formaldehyde release into indoor air. (umweltbundesamt.de)
  • It is also important to note that the glue that is used to secure carpeting to the sub-floors of manufactured homes often contains high amounts of formaldehyde. (ehow.com)
  • You are exposed to small amounts of formaldehyde in the air. (cdc.gov)
  • The study shows that workers exposed to higher amounts of formaldehyde had a 37 percent greater risk of death from blood and lymphatic cancers, and a 78 percent greater risk of leukemia than those with lower exposures. (lexisnexis.com)
  • In fact, US authorities such as Centre for Disease Control and Prevention (CDC) claim that there are small amounts of formaldehyde in almost all homes⁴. (dyson.co.uk)
  • Most people who are exposed to small amounts of formaldehyde present in home products don't experience any serious health complications. (howstuffworks.com)
  • If indeed we believe there's a conspiracy to hide the bad health effects of formaldehyde, let's at least call it an incredibly inept one. (wired.com)
  • A small number of studies have looked at the health effects of formaldehyde in children. (cdc.gov)
  • In a statement about the NCI study, it said that the health effects of formaldehyde need to be reviewed by the National Academy of Sciences. (lexisnexis.com)
  • They also reviewed several other new publications on the health effects of formaldehyde, including studies showing that formaldehyde cannot reach the bone marrow where leukemia-causing effects are generally recognized to occur. (eurekalert.org)
  • Although products have been improved over the last decades, wood-based panels, flooring, furniture and certain insulating materials (e.g. in-situ foam produced from urea-formaldehyde (UF) resin) are still considered the main sources. (umweltbundesamt.de)
  • Flakeboard sees an emerging market for its new product, Vesta, an MDF panel with no-added-urea formaldehyde, or no-added U-F. Vesta eliminates urea from its melamine resin, thus minimizing the potential for respiratory problems. (popularmechanics.com)
  • Melamine formaldehyde is also called melamine resin, cymel 481 resin, melamine and melamine formaldehyde polymer. (ehow.co.uk)
  • Formaldehyde is used in resin production. (cnbc.com)
  • A method of manufacturing a lignosulfonate-phenol-formaldehyde resin includes heating a mixture of phenol, formaldehyde, lignosulfonate and alkali at a temperature of 60 C. to 100 C. and a pH of 8-13. (google.com)
  • Other formaldehyde sources of relevance in indoor spaces include in situ foams made from urea formaldehyde resin, varnishes (mainly acid-catalysed coatings for wooden floors and furniture), veneers, textiles, carpets and fibre mats containing binders. (dguv.de)
  • What Is Formaldehyde Resin? (wisegeek.com)
  • Formaldehyde resin is a synthetic resin product made with formaldehyde as a base ingredient. (wisegeek.com)
  • Manufacturers are often developing new formaldehyde resin products and thinking of new applications for existing products to make them more useful. (wisegeek.com)
  • Phenols, melamine , urea , and aniline can all be used to make formaldehyde resin for various applications. (wisegeek.com)
  • One common use for formaldehyde resin is in paints and varnishes. (wisegeek.com)
  • There are some health concerns about formaldehyde resin. (wisegeek.com)
  • In a kitchen, for example, cabinets, flooring, and counters may all be made with this type of resin, while formaldehyde may also be present in the insulation used inside the walls and in the fridge. (wisegeek.com)
  • what is the formaldehyde resin used in making wrinkle free shirts and its availability and its application and disadvantages. (wisegeek.com)
  • Can the Formaldehyde resin found in Nailtiques nail products cause cancer and/or health problems of any kind? (wisegeek.com)
  • Formaldehyde is incorporated into both plywood and particleboard products as a urea-formaldehyde (UF) resin. (homeenergy.org)
  • If the foam is improperly mixed (for example, too much formaldehyde in the resin) or improperly installed (for example, injected during very humid, warm weather), it may outgas over time and become a major source of indoor formaldehyde. (homeenergy.org)
  • Though it is not obvious from the label, the antiwrinkle finish comes from a resin that releases formaldehyde, the chemical that is usually associated with embalming fluids or dissected frogs in biology class. (nytimes.com)
  • In 1985, HUD began providing guidelines for formaldehyde emissions in manufactured homes. (ehow.com)
  • The use of pressed wood and other materials that contained formaldehyde were still permitted but the emissions that were given off by the materials were required to meet certain specifications. (ehow.com)
  • According the U.S. Department of Environmental Protection Agency (EPA), formaldehyde emissions significantly decrease with age. (ehow.com)
  • The general public may be exposed to formaldehyde by breathing contaminated air from sources such as pressed-wood products, tobacco smoke, and automobile tailpipe emissions. (cancer.gov)
  • Back when the EPA delayed its formaldehyde assessment in 2004, the agency was working on a different formaldehyde rule -- this one addressing emissions from industrial facilities. (lexisnexis.com)
  • According to the GAO, the industry estimate also helped 'exempt certain facilities with formaldehyde emissions from the national emissions standard. (lexisnexis.com)
  • How strict legislation and new technology promise to reduce formaldehyde emissions and keep harmful materials out of American houses. (popularmechanics.com)
  • In spring 2009, CARB will begin to enforce new criteria for acceptable levels of formaldehyde emissions from a host of wood-based products.New products will be evaluated by the independent Composite Panel Association (CPA) . (popularmechanics.com)
  • The final rule also established a third-party certification program for laboratory testing and oversight of formaldehyde emissions from manufactured and/or imported composite wood products. (epa.gov)
  • EPA staffers meet with the agency's top pollution regulator, Jeffrey Holmstead, in his fifth-floor conference room to discuss a February 2004 deadline for creating a rule governing formaldehyde emissions at wood products plants. (historycommons.org)
  • The EPA will ignore the results of this study when it creates a new federal rule regulating formaldehyde emissions in February 2004 (see September 2002 ). (historycommons.org)
  • The Environmental Protection Agency (EPA) meets its February 27, 2004 deadline to come up with a new federal rule regulating formaldehyde emissions. (historycommons.org)
  • It initially exempts eight wood products plants from having to install pollution controls for formaldehyde and other emissions, but could eventually extend the exemptions to 147 or more of the 223 facilities nationwide. (historycommons.org)
  • Sierra Club, represented by Earthjustice, has filed a lawsuit against EPA Administrator Pruitt in the U.S. District Court for the Northern District of California San Francisco Division to require U.S. Environmental Protection Agency to adhere to the earlier December 12, 2017, deadline for compliance with the Formaldehyde Emissions Standards for Composite Wood Rule. (kcma.org)
  • But this was not the first or last time formaldehyde emissions from wood products were in the news. (nist.gov)
  • While the Katrina trailers were being tested for formaldehyde, CARB passed (in 2007) the Composite Wood Products Airborne Toxic Control Measure , which limited the emissions of formaldehyde from wood products that were sold or manufactured in California. (nist.gov)
  • Testing composite wood products to measure emissions of formaldehyde from plywood, particle board and medium-density fiberboard (MDF) is commonly known as CARB testing. (ul.com)
  • As a result, agencies and programs, including the U.S. Department of Housing and Urban Development (HUD), CARB, the European Union, Leadership in Energy and Environmental Design (LEED) and other green building programs, reference the ASTM D6007 and ASTM E1333 test methods for measuring formaldehyde emissions and determining compliance. (ul.com)
  • A study conducted at the Lawrence Berkeley Laboratory in 1983 concluded that formaldehyde emissions from these sources [unvented combustion appliances] "are not likely to be a problem. (homeenergy.org)
  • There are testing kits available to consumers that can help determine indoor air quality and the amount of formaldehyde that is being released into the environment. (ehow.com)
  • Despite both voluntary and mandatory restrictions in the amount of formaldehyde used in composite panels produced domestically, there remains little oversight or regulation of panels found in furniture and cabinetry manufactured abroad. (popularmechanics.com)
  • The sampling of formaldehyde in air, sample preparation and all the processes for monitoring has to be organized to analyze the amount of formaldehyde. (environmental-expert.com)
  • Releases of formaldehyde into the air occur from industries using or manufacturing formaldehyde, wood products (such as particle-board, plywood, and furniture), automobile exhaust, cigarette smoke, paints and varnishes, and carpets and permanent press fabrics. (cdc.gov)
  • Formaldehyde is a colorless, strong-smelling, flammable chemical that is produced industrially and used in building materials such as particleboard, plywood, and other pressed-wood products. (cancer.gov)
  • Formaldehyde is toxic, but still widely used to make glues-particularly for the adhesives that hold together plywood. (technologyreview.com)
  • Phenol-formaldehyde polymers make excellent wood adhesives for plywood and particleboard because they form chemical bonds with the phenollike lignin component of wood. (britannica.com)
  • Formaldehyde - widely used in products ranging from plywood to nail polish remover to hair straightening formulas, not to mention embalming fluid - has been suspect for some time now, and has also been known to cause a host of allergic reactions and respiratory problems. (care2.com)
  • The government scientists noted concern about the levels of formaldehyde in plywood, particle board, mortuaries and hair salons. (care2.com)
  • Globally, Fiberboard Wood Composites and Plywood together account for approximately 71.9% of the market share are expected to support the Urea-Formaldehyde (UF) industry going forward. (cnbc.com)
  • Materials such a plywood and fibreboard, insulation and do-it-yourself products such as paint, wallpapers, varnishes and household cleaning products can all release formaldehyde. (dyson.co.uk)
  • Formaldehyde is widely used in pressed wood products, such as particle board, plywood, fiberboard, glues and adhesives that are found in flooring, furniture and other building materials. (ul.com)
  • In 1985, the Department of Housing and Urban Development (HUD) set formaldehyde emission limits for particleboard and plywood used in manufactured homes and required that these products be certified by a nationally recognized testing laboratory. (saferchemicals.org)
  • Since particleboard and plywood are used in almost all buildings, these products are the major sources of indoor formaldehyde. (homeenergy.org)
  • Particle board followed by adhesives and plywood are the key applications of urea formaldehyde. (openpr.com)
  • Veracur gel contains formaldehyde solution. (netdoctor.co.uk)
  • Rebel Home.net reveals that it is the glue that is used in pressed wood that contains formaldehyde. (ehow.com)
  • If you work in an industry that uses formaldehyde, please read chemical labels and the accompanying Safety Data Sheet for hazard information. (cdc.gov)
  • Because both occurred to me when I was reading Nicholas Kristof's Sunday column about the apparent efforts of the chemical industry to suppress damaging information about formaldehyde and its risks to human health. (wired.com)
  • This piece at least identifies the issue at hand - formaldehyde and styrene, their carcinogenic potential (more on that later), and maneuvering by the American chemical industry to slow down or suppress publication of scientific reports on that topic. (wired.com)
  • And also a 'Formaldehyde and Cancer Risk' fact sheet from the National Cancer Institute that reviews much of that very information that the chemical industry is supposedly hiding from the rest of us. (wired.com)
  • A decade after Hurricane Katrina, when many dislocated families living in contaminated trailers reported illnesses linked to elevated levels of formaldehyde, the E.P.A. is close to taking action to impose restrictions on the use of the chemical in wood products. (nytimes.com)
  • The 30-year study, which tracked the health of nearly 25,000 men exposed to the chemical in industrial plants, is likely to impact a long-awaited Environmental Protection Agency risk assessment of formaldehyde. (lexisnexis.com)
  • Instead of using the EPA's current formaldehyde science, agency officials relied on ' risk information developed by an industry-funded organization ' called the Chemical Industry Institute of Toxicology, according to a 2008 report from the Government Accountability Office. (lexisnexis.com)
  • Now the Formaldehyde Council, an industry trade group that represents chemical manufacturers, is pushing for further delay. (lexisnexis.com)
  • Formaldehyde is a naturally occurring chemical that is used in the manufacture of building materials and many household products. (medicalnewstoday.com)
  • The chemical composition of urea and formaldehyde and the reaction by which they are polymerized into networks of permanently interlinked molecules are briefly described in the article aldehyde condensation polymer . (britannica.com)
  • Formaldehyde is an organic chemical compound of the aldehyde family with the chemical formula HCHO. (reference.com)
  • Formaldehyde serves as a chemical precursor in the production of a large number of chemicals. (reference.com)
  • Because funeral directors and embalmers have a long history of working with formaldehyde, which chemical experts say is indispensable for preparing the human body for viewing, the National Funeral Directors Assn. has developed a best practice protocol for working with formaldehyde. (businessinsurance.com)
  • Melamine formaldehyde is made from the polymerisation of formaldehyde (chemical formula CH2O) with melamine (chemical formula C3H6N6). (ehow.co.uk)
  • The chemical formula for melamine formaldehyde is C4H6N6O. (ehow.co.uk)
  • The powerful industrial chemical formaldehyde, along with a botanical called aristolochic acids and which is found in some herbal remedies, are "known human carcinogens" according to the 12th and latest Report on Carcinogens released Friday by the U.S. Department of Health and Human Services. (care2.com)
  • The chemical property of formaldehyde is very active and the reactions of addition, condensation, polymerization, oxidation, carbonylation can occur, it is one of the basic raw materials for organic synthesis. (alibaba.com)
  • We also noted disturbing indications that EPA intends to redo the assessment of formaldehyde under the Toxic Substances Control Act (TSCA), under the control of political appointees who came to EPA directly from the chemical industry's main trade association and while there led its efforts to undermine IRIS. (edf.org)
  • Formaldehyde is an important precursor to many other materials and chemical compounds. (wikipedia.org)
  • The real risks of formaldehyde are associated with very high levels of the chemical, which has been linked to rare nose and throat cancers in workers in certain manufacturing facilities, power plants and a number of other industries. (howstuffworks.com)
  • Among the studies described on the EPA's integrated risk information system (IRIS) chemical assessment summary , one 'observed significant excesses in lung and nasopharyngeal cancer deaths' and another found 'statistically significant excesses in mortality from buccal cavity tumors [i.e. oral cancer] among formaldehyde exposed garment workers. (howstuffworks.com)
  • EMSL Analytical provides testing services to protect the public safety and identify formaldehyde and other chemical contaminants. (webwire.com)
  • According to the agency s website, Based on the NICNAS (National Industrial Chemicals Notification and Assessment Scheme) Priority Existing Chemical Assessment Report for formaldehyde, Safe Work Australia has updated the entry in HSIS for formaldehyde to reflect recommended changes in classification. (webwire.com)
  • And to have the man who delivered for them on formaldehyde leading the charge to water down efforts to reform and strengthen the broken chemical regulation law must be a nice bonus. (rollcall.com)
  • There's lot of possibilities there," he said, including the chance that any formaldehyde showing up in tests isn't a result of the chemical spill. (twincities.com)
  • WASHINGTON, May 24 (Reuters) - The U.S. Environmental Protection Agency, under pressure from the chemical industry, has delayed release of a study detailing cancer risks from formaldehyde, according to internal communications seen by Reuters, potentially keeping important health information from the public. (reuters.com)
  • products made with formaldehyde will emit this chemical as a vapor for a long time. (saferchemicals.org)
  • Formaldehyde is a basic chemical that serves as an inexpensive precursor for a variety of chemical products. (dguv.de)
  • Urea formaldehyde (UF), chemically known as urea methanol, is a chemical composition of urea and formaldehyde and is set to witness high surge in demand in next couple of years primarily due to its high tensile strength, flexural modulus and scratch resistant properties that makes it suitable for being used as adhesives in various end-use industries. (openpr.com)
  • Some of the market participants in the global urea formaldehyde market are BASF SE, The Dow Chemical Company, Ashland Inc., DuPont, Kronospan Ltd., Advachem SA, etc. (openpr.com)
  • In enzymology, a formaldehyde dismutase (EC 1.2.99.4) is an enzyme that catalyzes the chemical reaction 2 formaldehyde ⇌ {\displaystyle \rightleftharpoons } formate + methanol Hence, this enzyme has one substrate, formaldehyde, and two products, formate and methanol. (wikipedia.org)
  • As we've previously reported , the Environmental Protection Agency has been trying to update its chemical risk assessment for formaldehyde since 1998, but has been stalled repeatedly by the chemical manufacturing industry. (truthout.org)
  • The formaldehyde assessment would undoubtedly influence the stringency of a rule the EPA is developing on how much of the chemical can safely be released from construction materials that contain it. (truthout.org)
  • Chemical indicator inks for steam-formaldehyde sterilization processes. (freepatentsonline.com)
  • The chemical indicator ink can further contain at least one secondary organic dye which does not undergo a color change when exposed to formaldehyde vapor in the presence of steam. (freepatentsonline.com)
  • 1. A chemical indicator ink for steam-formaldehyde sterilization processes containing at least one primary organic dye selected from the group consisting of Congo red, Benzo purpurin B, Chicago sky blue 6B, Direct red 75, Evans blue, Naphthol blue black, Nitro red, and combinations thereof. (freepatentsonline.com)
  • 2. The chemical indicator ink of claim 1 wherein said at least one primary organic dye undergoes an irreversible color change when exposed to formaldehyde vapor in the presence of steam. (freepatentsonline.com)
  • 7. The chemical indicator ink of claim 1 wherein said at least one primary organic dye is more sensitive to formaldehyde under alkaline conditions. (freepatentsonline.com)
  • 13. The chemical indicator ink of claim 12 wherein said at least one secondary organic dye enhances the color change of said chemical indicator ink and does not undergo a color change when exposed to formaldehyde vapor in the presence of steam. (freepatentsonline.com)
  • The primary raw material of melamine formaldehyde has more thermal resistance that enables melamine formaldehyde to have characteristics such as more chemical resistance, adhesion strength, wettability, and others. (pitchengine.com)
  • Formaldehyde (CH₂O) is a colorless, highly toxic, and flammable gas at room temperature. (cdc.gov)
  • At room temperature, formaldehyde is a colorless, flammable gas that has a distinct, pungent smell. (cdc.gov)
  • Formaldehyde is a gas that is colorless, yet harbors a strong odor that renders it quite noticeable. (ehow.com)
  • People are exposed primarily by inhaling formaldehyde gas or vapor from the air or by absorbing liquids containing formaldehyde through the skin. (cancer.gov)
  • Three years ago, researchers at Portland State University in Oregon conducted a study that found previously unknown forms of formaldehyde in the vapor of electronic cigarettes (e-cigarettes). (medicalnewstoday.com)
  • It identified new forms of formaldehyde in e-cigarette vapor that were at levels five to 15 times higher than those in normal cigarettes. (medicalnewstoday.com)
  • Formaldehyde is a gas with strong irritating smell, generally existed as aqueous solution, when the concentration of formaldehyde vapor reaches 1mg/l it will irritate the eyes, nose, throat and lungs. (alibaba.com)
  • It was conclusively identified by August Wilhelm von Hofmann, who first announced the production of formaldehyde by passing methanol vapor in air over hot platinum wire. (wikipedia.org)
  • The organic dye undergoes an irreversible color change when exposed to formaldehyde vapor in the presence of steam, but will not change color when exposed to other sterilization processes. (freepatentsonline.com)
  • Formaldehyde can react with many other chemicals, and it will break down into methanol (wood alcohol) and carbon monoxide at very high temperatures. (cdc.gov)
  • Formaldehyde is combined with methanol and buffers to make embalming fluid. (cdc.gov)
  • Vesta substitutes urea with phenol-formaldehyde, an alternative often described as no-added U-F, which emits formaldehyde at a slower, less harmful rate. (popularmechanics.com)
  • Many people date the beginning of the modern plastics industry to 1907, when Leo Hendrik Baekeland , a Belgian-born American chemist, applied for a patent on a phenol-formaldehyde thermoset that eventually became known by the trademarked name Bakelite . (britannica.com)
  • In 1872 the German chemist Adolf von Baeyer condensed trifunctional phenol and difunctional formaldehyde, and in subsequent decades Baeyer's student Werner Kleeberg and other chemists investigated the products, but they failed to pursue the reaction because they were unable to crystallize and characterize the amorphous resinous products. (britannica.com)
  • Two methods are used to make phenol-formaldehyde polymers. (britannica.com)
  • In one, an excess of formaldehyde is reacted with phenol in the presence of a base catalyst in water solution to yield the resole, which is a low-molecular-weight prepolymer with CH 2 OH groups attached to the phenol rings. (britannica.com)
  • The other method involves reacting formaldehyde with an excess of phenol using an acid catalyst to produce prepolymers called novolacs. (britannica.com)
  • The lignosulfonate comprises about 5 to about 80 percent of the total weight of phenol, formaldehyde. (google.com)
  • The lignosulfonate comprises about 5 to about 80 percent of the total weight of phenol, formaldehyde and lignosulfonate and the lignosulfonate is mixed with said phenol and formaldehyde before substantial reaction between said phenol and said formaldehyde. (google.com)
  • heating a mixture of phenol, formaldehyde, lignosulfonate and alkali wherein said lignosulfonate comprises about 5 to about 80 percent of the total weight of phenol, formaldehyde and lignosulfonate.Iadd. (google.com)
  • heating said mixture to form a lignosulfonate-phenol-formaldehyde polymer. (google.com)
  • 3. The method of claim 1 wherein said phenol, formaldehyde and lignosulfonate are mixed prior to heating. (google.com)
  • 4. The method of claim 1 wherein said lignosulfonate comprises abouit 30% to about 60% by total weight of lignosulfonate, phenol and formaldehyde. (google.com)
  • On March 13, 2018, the U.S. District Court for the Northern District of California issued an order addressing the litigation over the December 12, 2018 compliance date for the formaldehyde standards for composite wood products. (epa.gov)
  • On February 16 a California federal trial judge recently declared unlawful and vacated the December 2018 compliance deadline for the Formaldehyde Rule governing composite wood products. (kcma.org)
  • What Is Melamine Formaldehyde? (ehow.co.uk)
  • Melamine formaldehyde is a thermosetting plastic (or thermoset) that strengthens as it is heated during its preparation. (ehow.co.uk)
  • Melamine formaldehyde plastics retain their strength and shape, unlike other types of thermoplastics that soften with heat and harden when cooled (such as acetate, acrylic and nylon). (ehow.co.uk)
  • Melamine formaldehyde is a thermosetting plastic and cannot be melted. (ehow.co.uk)
  • According to "Handbook of Plastics Technologies," melamine formaldehyde is used extensively in automotive coatings, epoxy coatings and polyester appliance coatings. (ehow.co.uk)
  • Melamine formaldehyde laminates are used to surface walls, cabinets and counters, and to make decorative laminated panels in public transportation. (ehow.co.uk)
  • Melamine formaldehyde mouldings are hard, scratch- and impact-resistant, and resistant to shrinkage and heat. (ehow.co.uk)
  • Toilet seats, pan knobs and handles are also made with melamine formaldehyde. (ehow.co.uk)
  • Melamine formaldehyde is stain-resistant and resistant to strong solvents and water. (ehow.co.uk)
  • Melamine formaldehyde is affected by alkalis and concentrated acids--such as sulphuric acid (H2SO4) and oxalic acid (H2C2O4). (ehow.co.uk)
  • Melamine formaldehyde utensils are not microwave safe. (ehow.co.uk)
  • Melamine formaldehyde ingestion leads to kidney failure. (ehow.co.uk)
  • https://www.ehow.co.uk/about_6495357_melamine-formaldehyde_.html. (ehow.co.uk)
  • Melamine formaldehyde is a hard thermosetting plastic derived from melamine and formaldehyde. (bccresearch.com)
  • The global Melamine Formaldehyde market is segmented on the application and region. (bccresearch.com)
  • Research study on the Melamine Formaldehyde market was performed in five phases which include Secondary research, Primary research, subject matter expert advice, quality check and final review. (bccresearch.com)
  • Increasing use of melamine formaldehyde in automotive manufacturing contributes to overall growth in the global melamine formaldehyde market. (pitchengine.com)
  • The building & construction sector, automotive market, and packaging market have seen growth or resurgence that has contributed to projected increase in the world-wide market for melamine formaldehyde. (pitchengine.com)
  • The demand for melamine formaldehyde has recently slowed down due to its carcinogenic effects. (pitchengine.com)
  • However, the U.S. government has passed certain regulations that have mitigated the threat associated with melamine formaldehyde, which has thereby helped the melamine formaldehyde market to grow. (pitchengine.com)
  • Asia-Pacific is the leading region for Melamine Formaldehyde market, both in terms of volume and value, followed by Europe. (pitchengine.com)
  • The key players in the melamine formaldehyde market are Hexza Corporation Berhad (Malaysia), INEOS Melamines GmbH (Germany), Qatar Melamine Company (Doha), Chemplastica SpA (Italy), Eurotecnica Contractors and Engineers S.p.A. (Greece), BASF SE (Germany). (pitchengine.com)
  • The melamine formaldehyde demand, in terms of value and volume, depicts the current and future projections according to the parallel economic and industrial outlook. (pitchengine.com)
  • The global market value of the melamine formaldehyde was estimated to be about $2.7 Billion in 2014 and is projected to reach $4.4 Billion by 2019, at a CAGR of 9.9% between 2014 and 2019. (pitchengine.com)
  • Indoor air contains higher levels of formaldehyde than outdoor air. (cdc.gov)
  • Levels of formaldehyde measured in indoor air range from 0.02-4 parts per million (ppm). (cdc.gov)
  • Generally, indoor formaldehyde concentrations are much higher than outdoor concentrations. (cdc.gov)
  • Wood-based materials are one of the main sources of formaldehyde in indoor air. (umweltbundesamt.de)
  • In addition to the above effects on mucous membranes through inhalation, elevated concentrations of formaldehyde in indoor air may cause eye irritation. (umweltbundesamt.de)
  • What are indoor sources of formaldehyde? (umweltbundesamt.de)
  • Efforts to protect the general population are aimed at minimising the concentration of formaldehyde in indoor air. (umweltbundesamt.de)
  • Formaldehyde, An Introduction to Indoor Air Quality. (cancer.gov)
  • Hire an Indoor Air Quality Professional to air test your home to see what your formaldehyde levels are and remove unnecessary sources. (iaqa.org)
  • Research indicates that the main source of indoor formaldehyde pollution in China comes from the gas being released after decorating a home. (dyson.co.uk)
  • In a 2019 report, it was found that 50% of Chinese households have indoor formaldehyde concentrations exceeding international and local standards of 0.10mg/m3 ². (dyson.co.uk)
  • Formaldehyde levels within homes can be exacerbated by how well sealed they are, as a well-sealed home can trap indoor pollutants. (dyson.co.uk)
  • Formaldehyde has come under increased public scrutiny in recent years and is commonly found in the indoor environment due to its use in construction materials, building furnishings and some consumer products. (webwire.com)
  • One of the leading environmental and indoor air quality (IAQ) laboratories in North America has been on the front lines in helping government agencies, manufacturers, distributors and the public test for formaldehyde in products and indoor environments. (webwire.com)
  • EMSL has sponsored a video about the hazards associated with formaldehyde in the indoor environment. (webwire.com)
  • For information about testing for formaldehyde or other indoor air quality testing services, please visit www.EMSL.com , email [email protected] or call (800) 220-3675. (webwire.com)
  • Most formaldehyde exposures occur by breathing indoor air contaminated by carpets, countertops, cabinets, couches and other furniture. (saferchemicals.org)
  • In fact, formaldehyde off-gassing from building materials and other products can lead to indoor formaldehyde concentrations far exceeding outdoor levels. (saferchemicals.org)
  • In a recent California study, nearly all new single-family homes had indoor formaldehyde concentrations that exceeded guidelines for cancer and chronic lung irritation. (saferchemicals.org)
  • Formaldehyde off-gassing from building materials and other products can lead to indoor formaldehyde concentrations far exceeding outdoor levels, though formaldehyde is also produced during combustion and can be found as an outdoor air contaminant. (saferchemicals.org)
  • Indoor and outdoor measurements of formaldehyde and the aromatic hydrocarbons: benzene, toluene, ethylbenzene, m,p-xylene and o-xylene (BTEX) were conducted at six offices in a suburban area in Giza, Egypt, during the winter 2003-04 season. (environmental-expert.com)
  • The mean indoor level of formaldehyde was 59.79ppb in offices where there was no smoking and 85.01ppb in offices where people smoked. (environmental-expert.com)
  • Formaldehyde, acetaldehyde, acetone, propionaldehyde and butyraldehyde were measured in indoor and outdoor air at three houses and one apartment in the Mexico city metropolitan area (MCMA). (environmental-expert.com)
  • Formaldehyde presented the highest concentration in indoor and outdoor air, followed by acetone and acetaldehyde. (environmental-expert.com)
  • The German Committee on Indoor Guide Values set a guide value I (precautionary value) for formaldehyde of 0.1 mg/m 3 in 2016. (dguv.de)
  • It turned out that the formaldehyde levels were just below the ASHRAE indoor standard of 0.09 parts per million (ppm). (homeenergy.org)
  • High indoor formaldehyde levels present a real problem, because formaldehyde trapped in houses can cause headaches and irritate the eyes and throat. (homeenergy.org)
  • Mobile homes provide a case study of how a combination of factors can result in dangerously high indoor formaldehyde concentrations. (homeenergy.org)
  • Formaldehyde has been found in at least 29 of the 1,669 National Priorities List sites identified by the Environmental Protection Agency (EPA). (cdc.gov)
  • The U.S. Environmental Protection Agency published a direct final rule Oct. 25 to update several voluntary consensus standards in the rule governing Formaldehyde Emission Standards for Composite Wood Products. (kcma.org)
  • On Friday, December 9 the Environmental Protection Agency issued a final rule to implement the Formaldehyde Standards for Composite Wood Products Act, adding Title VI to the Toxic Substances Control Act. (kcma.org)
  • In addition, the U.S. Environmental Protection Agency relied heavily on the Zhang study in its 2010 draft assessment of formaldehyde health risks under its Integrated Risk Information System (IRIS), a draft assessment that was heavily criticized by a 2011 National Academy of Sciences (NAS) peer review report. (eurekalert.org)
  • In a series of recent hearings Environmental Protection Agency (EPA) Administrator Andrew Wheeler has sought to justify his and his agency's corrupt decision s to kill off a health assessment of formaldehyde done by career scientists in the agency's science arm (IRIS) and resurrect it under the control of conflicted political appointees. (edf.org)
  • Formaldehyde can cause irritation of the skin, eyes, nose and throat,' says Kenneth T. Labbe, press officer for the U.S. Environmental Protection Agency (EPA). (howstuffworks.com)
  • Polyoxymethylene Urea is a reaction product of urea and formaldehyde. (ewg.org)
  • Formaldehyde has recently been recognized by the U.S. Centers for Disease Control and Prevention as potentially causing respiratory illness in hurricane victims housed in FEMA trailers in the Gulf Coast (average level of formaldehyde was 77 ppb and maximum level was 590 ppb). (saferchemicals.org)
  • This test allows the quick and easy determination of Formaldehyde. (mn-net.com)
  • Across the cosmetics product value chain, there are multiple reasons, which are all focused on product safety, to deploy an accurate and sensitive method for quantitative determination of formaldehyde or acetaldehyde. (intertek.com)
  • Climate chamber methods for determination of formaldehyde are carried out according the american standards ASTM E1333 and ASTM D 6007. (sp.se)
  • Rats repeatedly exposed to high concentrations of formaldehyde by inhalation developed tumors in their nasal cavities over their lifetime. (umweltbundesamt.de)
  • Personal and area sampling revealed TWA concentrations of formaldehyde ranging from 0.3 during the embalming of intact bodies to 0.9ppm in the case of autopsied bodies. (ilo.org)
  • Formaldehyde can cause irritation of the eyes, nose, and throat and neurological effects. (cdc.gov)
  • It is very likely that breathing formaldehyde will result in nose and eye irritation. (cdc.gov)
  • Formaldehyde increases airway resistance when inhaled, probably because of local irritation and release of inflammatory mediators. (encyclopedia.com)
  • And if the building materials in your house contain sufficient levels of formaldehyde to cause irritation, you would definitely know about it, he says. (smh.com.au)
  • The buildup of formaldehyde vapors in some tightly sealed houses can cause headaches and irritation. (homeenergy.org)
  • The type of dwelling most likely to have formaldehyde concentrations high enough to cause irritation is a new, tightly-sealed mobile home, but many types of houses may experience the problem. (homeenergy.org)
  • Formaldehyde is one of dozens of chemicals sitting in a backlog awaiting final EPA risk assessment through the agency's Integrated Risk Information System . (lexisnexis.com)
  • Johnson & Johnson has pledged that, by the end of 2015, formaldehyde and other potentially harmful chemicals will be removed from its products including brands like Neutrogena, Aveeno and Clean & Clear. (care2.com)
  • Formaldehyde is one of the most ubiquitous industrial chemicals in the United States. (nymag.com)
  • And here, the director of the agency responsible for protecting the American people from toxic chemicals was saying, under oath, that he was vaguely aware of a report linking formaldehyde to a variety of terminal illnesses. (nymag.com)
  • EPA officials who spoke with Politico say that the "scientific advice" of White and her ilk has led the agency to suppress the draft report on formaldehyde, as part of a broader "campaign to undermine the agency's independent research into the health risks of toxic chemicals. (nymag.com)
  • EPA's statement today regarding its inclusion of formaldehyde on the list of chemicals under consideration for prioritization for risk evaluation under TSCA leaves many questions unanswered. (edf.org)
  • Formaldehyde is on the Proposition 65 list of chemicals known to cause cancer. (nbcbayarea.com)
  • Vitter has a unique history when it comes to protecting toxic chemicals over public health, having almost single-handedly blocked the Environmental Protection Agency's more-than-two-decade effort to regulate the use formaldehyde, one of the most studied and highly carcinogenic chemicals in commerce today. (rollcall.com)
  • Safer Chemicals Healthy Families urges the EPA to use its authority under an updated TSCA to protect people and the environment from toxic chemicals like formaldehyde. (saferchemicals.org)
  • I've never actually bought any item marketed as wrinkle-free even before I knew about this formaldehyde issue - simply because wrinkle-free seemed unnatural to me, so I suspected nasty chemicals might be involved. (mnn.com)
  • A fact sheet from the U.S. Occupational Safety and Health Administration that details formaldehyde toxicity information and worker safety regulations concerning formaldehyde, including a recent series of warnings concerning 'hair smoothing formulas. (wired.com)
  • In house fires, formaldehyde residues in fabrics and foams play a major role in the toxicity of smoke. (encyclopedia.com)
  • In view of its widespread use, toxicity, and volatility, formaldehyde poses a significant danger to human health. (wikipedia.org)
  • A literature search revealed no studies on the toxicity of formaldehyde to soil microorganisms. (europa.eu)
  • At the time, the NCI had just published preliminary findings suggesting a link between formaldehyde and leukemia. (lexisnexis.com)
  • A study of about 14,000 workers in England who have been exposed to formaldehyde fails to demonstrate a link between formaldehyde and leukemia. (historycommons.org)
  • Useful search terms for formaldehyde include "methanal," "methyl aldehyde," "methylene oxide. (cdc.gov)
  • Formaldehyde (/fərˈmældəhaɪd/ (listen) fer-mal-duh-hahyd, also /fɔːrˈmældəhaɪd/ (listen) for-) (systematic name methanal) is a naturally occurring organic compound with the formula CH2O (H−CHO). (wikipedia.org)
  • Formaldehyde is a disinfectant which is effective against bacteria, fungi and many viruses. (netdoctor.co.uk)
  • When dissolved in water, formaldehyde is used as a preservant and disinfectant. (reference.com)
  • The Bureau of Food and Drugs warned the public Tuesday against some Chinese candies and cookies that tested positive for formaldehyde, a disinfectant linked to cancer in humans. (cnbc.com)
  • Formaldehyde is toxic. (wired.com)
  • If you're wondering how formaldehyde can have such a toxic reputation and still be in so many everyday items, the answer is it's all in the quantity. (howstuffworks.com)
  • Studies showed that people repeatedly exposed to airborne formaldehyde in the workplace produced more cases of nose and throat cancer than expected, according to the CDC's Agency for Toxic Substances & Disease Registry. (twincities.com)
  • Formaldehyde levels in outdoor air range from 0.0002 to 0.006 ppm in rural and suburban areas and 0.001 to 0.02 ppm in urban areas. (cdc.gov)
  • Formaldehyde is usually found in the air, and levels are usually higher indoors than outdoors. (cdc.gov)
  • Not smoking and not using unvented heaters indoors can lower the formaldehyde levels. (cdc.gov)
  • Levels of formaldehyde in the environment have been well characterized and will vary depending on the area of the country and whether it is a rural or urban environment. (cdc.gov)
  • Some people are exposed to higher levels of formaldehyde if they live in a new mobile home, as formaldehyde is given off as a gas from the manufactured wood products used in these homes. (cdc.gov)
  • Studies of workers exposed to high levels of formaldehyde, such as industrial workers and embalmers, have found that formaldehyde causes myeloid leukemia and rare cancers, including cancers of the paranasal sinuses, nasal cavity , and nasopharynx. (cancer.gov)
  • Formaldehyde levels in homes and work settings can also be reduced by ensuring adequate ventilation, moderate temperatures, and reduced humidity levels through the use of air conditioners and dehumidifiers. (cancer.gov)
  • As the third anniversary of Hurricane Katrina approaches, displaced Gulf Coast residents temporarily housed in about 140,000 travel trailers are still discovering the health effects of elevated formaldehyde levels within the homes. (popularmechanics.com)
  • Hundreds of residents have reported acute to severe respiratory problems, and a few have blamed high formaldehyde levels for a family member's death. (popularmechanics.com)
  • In the average stick-built home (or the average trailer, for that matter) ambient formaldehyde levels hover around10 to 20 parts per billion (ppb), the level typically found in healthy outdoor air. (popularmechanics.com)
  • Increased awareness, combined with the new CARB standards, should reduce the likelihood that new American-made panels will contain dangerous levels of formaldehyde. (popularmechanics.com)
  • Do e-cigarettes produce dangerous formaldehyde levels? (medicalnewstoday.com)
  • Environment California found a half dozen products - out of 21 nursery furnishings it tested - emitted formaldehyde at levels high enough to trigger allergy and asthma attacks in children. (treehugger.com)
  • Earlier this week EPA published a prepublication notice on the proposed "correlation" rule allowing TPC the use of small chambers to test formaldehyde emission levels. (kcma.org)
  • New construction and remodeling in our homes can raise formaldehyde levels. (iaqa.org)
  • Its intelligent algorithm precisely senses formaldehyde levels without confusing it with other violent organic compounds (VOCs). (dyson.co.uk)
  • Formaldehyde levels detected by the Dyson Purifier Formaldehyde are reported via the LCD screen and the Dyson Link App. (dyson.co.uk)
  • The Picarro G2107 formaldehyde analyzer meets the needs of diverse applications, combining turnkey operational simplicity with unmatched sensitivity, providing a linear operating range that extends from low parts per billion to high parts per million levels. (environmental-expert.com)
  • Australian-made products are subject to tight standards but there are no laws governing the formaldehyde levels on imports. (smh.com.au)
  • And in May 2007 hundreds of imported blankets from China were recalled after a Herald investigation revealed they contained levels of formaldehyde 10 times the international standard. (smh.com.au)
  • But according to an Australian expert in toxicology, the levels of formaldehyde in most manufactured products would not cause cancer. (smh.com.au)
  • According to the CDC, the risk of health problems is low when formaldehyde levels are of 10 parts per billion. (twincities.com)
  • It off-gasses levels of formaldehyde which can become dangerous during the curing process and over the lifetime of the product. (wisegeek.com)
  • Some people are very sensitive to formaldehyde, and may experience symptoms such as skin outbreaks and respiratory problems if they are exposed to high formaldehyde levels. (wisegeek.com)
  • however, the problem was bad enough that scientists installed devices to monitor the levels of formaldehyde inside the trailer. (homeenergy.org)
  • Formaldehyde levels in the trailer are now much lower, and the occupants no longer complain of headaches. (homeenergy.org)
  • There are several factors determining formaldehyde levels in residences. (homeenergy.org)
  • Some state health officials suggest that formaldehyde levels in the home should not exceed 40 parts per billion. (charlotteobserver.com)
  • Trailers supplied by FEMA to Katrina survivors were found to have harmful levels of formaldehyde in them. (truthout.org)
  • The United States does not regulate formaldehyde levels in clothing, most of which is now made overseas. (mnn.com)
  • The Government Accountability Office , the investigative arm of Congress, recently examined the levels and potential health risks of formaldehyde as required by the Consumer Product Safety Improvement Act of 2008. (nytimes.com)
  • Most of the 180 items tested, largely clothes and bed linens, had low or undetectable levels of formaldehyde that met the voluntary industry guidelines based on standards in Japan, which are among the most stringent. (nytimes.com)
  • they are made from particle board and are full of formaldehyde. (treehugger.com)
  • If such reactions are observed after contact with suspicious substances it may be useful to control the Formaldehyde concentration. (mn-net.com)
  • In other words, in general these effects which ultimately result in cancer are not expected to occur below a certain formaldehyde concentration. (umweltbundesamt.de)
  • The airmo HCHO is an autoGC using FID detector dedicated to Formaldehyde monitoring at low concentration. (environmental-expert.com)
  • For example, the average formaldehyde concentration in outdoor air in California is 3 to 5 parts per billion (ppb). (saferchemicals.org)
  • However, the estimated average formaldehyde concentration in Californian conventional homes is 14 ppb-and in manufactured homes is as high as 37 ppb. (saferchemicals.org)
  • These studies have usually been done in workers exposed to formaldehyde. (cancer.ca)
  • The National Cancer Institute publishes a study demonstrating that 25,000 workers exposed to formaldehyde had an increased risk of leukemia. (historycommons.org)
  • Methanediol, the predominant species in dilute aqueous solutions of formaldehyde. (wikipedia.org)
  • NIOSHTIC-2 search results on formaldehyde -NIOSHTIC-2 is a searchable database of worker safety and health publications, documents, grant reports, and journal articles supported in whole or in part by NIOSH. (cdc.gov)
  • Formaldehyde was first reported in 1859 by the Russian chemist Aleksandr Butlerov (1828-86) In his paper, Butlerov referred to formaldehyde as "dioxymethylen" (methylene dioxide) [page 247] because his empirical formula for it was incorrect (C4H4O4). (wikipedia.org)
  • Individuals vary in their tolerance and susceptibility to acute formaldehyde exposures. (cdc.gov)
  • The settlement is the first government enforceable action in the United States to address the exposures to formaldehyde gas associated with Brazilian Blowout products. (nbcbayarea.com)
  • formaldehyde (fôrmăl´dəhīd´) , HCHO, the simplest aldehyde . (encyclopedia.com)
  • airmo HCHO is designed for the measurement of formaldehyde in air or pure gases. (environmental-expert.com)
  • The AL4021 is a completely automated and continuously working formaldehyde (HCHO) analyzer for gaseous and liquid samples based on the Hantzsch reaction, which is sensitive to very low concentrations of HCHO (ppbV for gaseous samples and µg/L for liquid samples). (environmental-expert.com)
  • Several scientists from NILU will be staying in the area around Milan to measure formaldehyde (HCHO) and test instruments to improve measurement techniques. (environmental-expert.com)
  • Formaldehyde oxidation by cell-free extracts of Methanobacterium thermoautotrophicum was shown to drive methanogenesis from CH3-S-coenzyme M or HCHO under a nonreductive atmosphere of N2. (nih.gov)
  • The Centers for Disease Control and Prevention (CDC) says formaldehyde is present in just about all of our homes - especially those with smoking allowed. (howstuffworks.com)
  • He pointed out that the researchers couldn't explain exactly how formaldehyde could cause leukemia. (lexisnexis.com)
  • Studies have shown that formaldehyde increases the risk of developing nasopharyngeal cancer and leukemia. (cancer.ca)
  • The National Institute of Occupational Safety and Health completes a study of 10,000 workers who have been exposed to formaldehyde and find that they have an increased risk of leukemia. (historycommons.org)
  • Ignoring the opinion of experts, the EPA did not take into account the findings of two recent studies (see November 2003 ) (see Early 2004 ) that had found that workers who were exposed to formaldehyde were at an elevated risk of leukemia. (historycommons.org)
  • It's my understanding," the Massachusetts senator said, "that the EPA has finalized its conclusion that formaldehyde causes leukemia and other cancers and that [the] completed new assessment is ready to be released for public review, but is being held up. (nymag.com)
  • The effect of all this would be to force industry to reduce its reliance on formaldehyde - and thus, to reduce the number of Americans who suffer from the ravages of leukemia, nose and throat cancer, and a variety of less severe respiratory ailments. (nymag.com)
  • The weight of scientific evidence does not support a causal association between formaldehyde and leukemia," he said. (eurekalert.org)
  • Since its publication in 2010, the conclusions of the Zhang study have been used by several health assessment organizations to inappropriately conclude that formaldehyde causes leukemia. (eurekalert.org)
  • Prior to the communications, the chemistry industry's main lobby group, the American Chemistry Council (ACC), had been pressuring the EPA to avoid drawing links between formaldehyde and leukemia in its assessment. (reuters.com)
  • EPA's last attempt to update its assessment of formaldehyde in 2010 had been criticized by the National Academy of Sciences (NAS) for failing to draw "clear links" between formaldehyde and leukemia. (reuters.com)
  • Formaldehyde has been identified to cause cancer of the upper airways and leukemia, as well as respiratory illness. (saferchemicals.org)
  • UFFI stands for "urea-formaldehyde foam insulation" which was commonly used in the production of manufactured homes in the 1970s. (ehow.com)
  • Formaldehyde is a simple, highly reactive hydrocarbon that is used as a fixative in the pathology laboratory, as a fumigant, and in the manufacture of foam insulation, cosmetics, drugs, clothing, and furniture. (encyclopedia.com)
  • What is the best formaldehyde free insulation product on the market? (thisoldhouse.com)
  • FYI, Johns Manville offers the industry's only full line of Formaldehyde-freeTM fiber glass building insulation. (thisoldhouse.com)
  • Formaldehyde is not necessary for insulation to meet thermal and acoustical performance characteristics, so we took it out. (thisoldhouse.com)
  • California EPA's Air Resources Board recommends using building materials (including insulation) without added formaldehyde. (thisoldhouse.com)
  • Plus, most Greenguard-certified insulation products are made with added formaldehyde. (thisoldhouse.com)
  • You can buy JM's naturally white Formaldehyde-freeTM fiber glass building insulation at Lowes and Menards. (thisoldhouse.com)
  • I truly believe that JMs formaldehyde free insulation is a much nicer product to work with as well. (thisoldhouse.com)
  • This is complicated by the fact that manufacturers of several popular hair-straightening products containing formaldehyde have mislabeled the products and not disclosed their formaldehyde content, according to the Occupational Safety and Health Administration. (businessinsurance.com)
  • How likely is formaldehyde to cause cancer? (cdc.gov)
  • Formaldehyde was classified in the EU as "suspected of causing cancer" (category 2 under the Classification, Labelling, Packaging ">CLP Regulation) until in June 2014 the EU classified it as "may cause cancer" (category 1 B under the Classification, Labelling, Packaging ">CLP Regulation) on the basis of new findings. (umweltbundesamt.de)
  • Inhofe, recognizing that the findings would influence the EPA's formaldehyde assessment, argued that the cancer study wasn't strong enough, saying it needed to 'collect a more robust set of data. (lexisnexis.com)
  • The International Agency for Research on Cancer (IARC) classifies formaldehyde as a known cause of cancer. (cancer.ca)
  • Dr. Otis Brawley, chief medical officer at the American Cancer Society, said that formaldehyde is both worrisome and inescapable. (care2.com)
  • The original paper, published in January 2010 by Luoping Zhang and 33 co-authors in Cancer Epidemiology, Biomarkers & Prevention , compared the presence of reported chromosomal abnormalities in a small group of Chinese workers occupationally exposed to formaldehyde to the presence of these abnormalities in unexposed workers. (eurekalert.org)
  • The NCI study has been influential in the classification of formaldehyde as a human leukemogen by the International Agency for Research on Cancer (IARC) and the National Institute of Environmental Health Sciences (NIEHS) National Toxicology Program (NTP). (news-medical.net)
  • The NAS, however, had supported the prior EPA assessment's finding that formaldehyde can, in certain cases, cause cancer in the nose and throat. (reuters.com)
  • Latest in the series of food safety scandals to rock China: the Philippine Bureau of Food and Drugs has found traces of the cancer-causing agent formaldehyde in the White Rabbit candies produced in Shanghai by the Guan Sheng Yuan Group . (shanghaiist.com)
  • The NAS finished reviewing the EPA assessment in April, sending back a long list of questions and advising the EPA not to finalize the document until it could show exactly how formaldehyde causes cancer, a biological mechanism known as the "mode of action. (truthout.org)
  • Now the EPA is developing those rules , and it will probably use its formaldehyde risk assessment to determine an appropriate safety standard. (lexisnexis.com)
  • We asked the EPA how the NCI's latest findings would impact the completion of the formaldehyde assessment. (lexisnexis.com)
  • The industry-backed risk estimate said that formaldehyde was 2,400 times less potent than the original EPA risk assessment. (lexisnexis.com)
  • Also recall that EPA leadership ran a phony priority-setting process last fall under the direction of yet another conflicted political appointee in order to claim that the IRIS formaldehyde assessment is no longer a priority for the agency . (edf.org)
  • What is absolutely essential is that the IRIS program be able to complete its assessment of formaldehyde, which has been suppressed for the last year and a half by conflicted EPA political appointees. (edf.org)
  • GAO confirms in spades the concerted efforts by the agency's political leadership to fabricate a rationale for abandoning the formaldehyde assessment, which has been ready for public and peer review since the fall of 2017. (edf.org)
  • In the wake of the GAO report, Senator Carper and other members of Congress from both houses have sent a letter to EPA Administrator Andrew Wheeler calling on him to complete the formaldehyde assessment and release documents pertaining to potential ethical and scientific integrity policy violations by EPA political appointees. (edf.org)
  • The EPA told Congress in early February it expected to start the agency review process for the formaldehyde assessment "shortly," according to the EPA staff communications. (reuters.com)
  • She provided Reuters a link to the presentation, titled "Formaldehyde IRIS Assessment. (reuters.com)
  • Democratic senators Ed Markey, Sheldon Whitehouse and Tom Carper last week wrote to EPA chief Scott Pruitt to ask about delays to the report and request communications between the EPA and ACC related to the formaldehyde assessment, saying they were concerned the agency was bowing to industry pressure. (reuters.com)
  • Instead, the authors of the replication study simply stated that the more common "gaseous" form of formaldehyde would not affect e-cigarette users at intermediate heats. (medicalnewstoday.com)
  • Paraformaldehyde is a common form of formaldehyde for industrial applications. (wikipedia.org)
  • Main forms of formaldehyde Monomeric formaldehyde (subject of this article). (wikipedia.org)
  • Other testing showed no traces of formaldehyde, but samples are still being processed. (twincities.com)
  • The first careful scientific analysis on the danger of formaldehyde as a toxin was conducted in 1900 by a physician named Martin Fischer. (wired.com)
  • The greatest danger of formaldehyde is to those individuals who have compromised pulmonary function. (encyclopedia.com)
  • One study found that formaldehyde concentrations measured in the ambient environment ranged from 0.001 to 0.068 parts of formaldehyde per million parts of air (ppm), with an average of 0.0028 ppm. (cdc.gov)