Concentrations of organochlorine compounds detected in fish tissue from many eastern Iowa streams and rivers indicate the long-term effects of previous human activities, which are not often detected by chemical analyses of water or sediment. With the exception of McLoud Run at Cedar Rapids, streams and rivers sampled during the study drain agricultural lands. Land use has not changed substantially since these compounds were commonly used, although prior coal mining activities upstream from Cedar Creek near Oakland Mills (site 14) have ceased. Despite similar land-use characteristics throughout the study unit, concentrations of organochlorine compounds in fish tissue vary widely. In the graph above, organochlorine concentrations are presented in micrograms per kilogram (mg/kg), units that are equivalent to parts per billion.. Fish tissue from the Wapsipinicon River near Tripoli (site 1) was comparatively uncontaminated, containing only a small amount of a DDT degradation product. This condition ...
BACKGROUND: We performed a cross-sectional study of associations between personal characteristics and lipid-adjusted serum concentrations of certain PCB congeners and chlorinated pesticides/metabolites among 323 pregnant primiparous women from Uppsala County (age 18-41 years) sampled 1996-1999. METHODS: Extensive personal interviews and questionnaires about personal characteristics were performed both during and after pregnancy. Concentrations of organochlorine compounds in serum lipids in late pregnancy were analysed by gas chromatography. Associations between personal characteristics and serum levels of organochlorine compounds were analysed by multiple linear regression. RESULTS: Participation rate was 82% (325 of 395 women). Serum concentrations of PCB congeners IUPAC no. 28, 52, 101, 105 and 167, and o, p-DDT and -DDE, p, p-DDT and -DDD, oxychlordane, and gamma- and alpha-HCH were in many cases below the limit of quantification (LOQ). No statistical analysis of associations with personal ...
The report generally describes 2-chloropropionic acid methyl ester, examines its uses, production methods, patents. 2-Chloropropionic acid methyl ester
This application note from Cecil Instruments describes an effective method for organochlorine pesticide analysis in the environment by reversed phase chromatography with UV-Vis detection. The method was performed using the Adept HPLC Series System 2. The experimental conditions and subsequent results are presented.
This standard is formulated for the purposes of enforcing the Environment Protection Law of the Peoples Republic of China, protecting the environment, safeguarding the human health, and setting standards for the determination of organochlorine pesticides in soils and sediments. This standard specifies the gas chromatography used to determine 23 organochlorine pesticides in the ambient air. The appendix A to this standard is normative, and the appendixes B and C are referential. This standard is the original version.. ...
Exposure to persistent organic pollutants (POPs) and related compounds such as PCBs, brominated flame retardants, organochlorine pesticides and PAHs is regarded as an important environmental risk factor for humans. Recently concerns about POPs resulted in the international protocol called the Stockholm Conve
PAHs were examined because these compounds are known to cause breast cancer in rodents, and a few small human studies have suggested a possible association between these chemicals and increased risk of breast cancer. Women can be exposed to PAHs by breathing in cigarette smoke, and exhaust from cars, trucks and planes, and by eating grilled and smoked foods. Starting in 1996, Gammon and her colleagues collected blood samples from 1,508 women in Nassau and Suffolk counties who were newly diagnosed with breast cancer, and a similar number of women who did not have cancer. The blood samples were checked for direct evidence of exposure to organochlorine compounds and PAHs, both of which leave traces in the body for months or years.. Study participants also completed a questionnaire, and at some of the womens homes, researchers collected samples of house dust, tap water and yard soil to test for organochlorine compounds and PAHs. Exposure to PAHs causes the chemicals attach to DNA, creating ...
Organochlorines are lipophylic molecules that accumulate in the fat where they remain for years. During weight loss, they are mobilized and their concentration increases in blood. The present work tests, in transgenic estrogen-reporter mice (ERE-tK-LUC), whether this increase is sufficient to modulate the estrogen receptors (ERs) in the whole body. Three weak estrogens were studied: p,p DDT [1,1,1-trichloro2,2-bis(p-chlorophenyl) ethane], p,p DDE [1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene], and betaBHC [beta-benzene-hexachloride]. Dose-dependent analysis of reporter expression (luciferase) were performed in tissues of acutely treated mice. A body snap of ER activation was obtained. All these chemicals modulated the reporter, although with a different efficiency and depending upon the tissue analyzed. Induction was confirmed in the liver by determining the expression of the endogenous progesterone receptor (PR) gene, at the dose and time point at which the luciferase gene was maximally ...
Breast cancer is a multifactorial disease and its etiology is linked to multiple risk factors. There are shreds of controversial evidence that exposure to organ...
Printing tips! To print chromatograms full page, change the print settings in the print dialogue window of your PDF reader software: 1) "fit" or "fit to page", 2) "landscape" for wide chromatograms or "portrait" for tall chromatograms.. ...
The data comes from registration dossiers submitted to ECHA by the date indicated as last update. The Total Tonnage Band is compiled from all the dossiers with two exceptions; any tonnages claimed confidential and any quantity used as an intermediate to produce a different chemical. The Total Tonnage band published does not necessarily reflect the registered tonnage band(s).. Please note that some of the information on registered substances may belong to third parties. The use of such information may therefore require the prior permission of the third party owners. Please consult the Legal Notice for further information.. ...
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database ...
One or more organochlorine compounds were detected in all women in the LIBCSP, although median levels were as much as 10-fold lower than those reported earlier in the 20th century. Multivariate models reconciled the different directions of correlations of DDE and PCB with BMI that were found in simple or age-adjusted correlations (Tables 1 and 2; Fig. 2), in a manner consistent with the pharmacokinetic models. When both BMI and weight gain were included in multivariate models, the direction of the associations was identical for DDE and PCB. Therefore, the statistical models corrected the apparent positive association of DDE with BMI-gain (e.g., Fig. 3) to a negative coefficient in the model (e.g., Table 4), whereas at the same time, after multivariate adjustment, the inverse correlation of PCBs with BMI became positive.. From predicted organochlorine model shown in Fig. 3, highest DDE levels were in women who were heaviest, had the least adult weight gain, and did not lactate. Lowest levels were ...
Ethyl 3-chloropropionate 623-71-2 NMR spectrum, Ethyl 3-chloropropionate H-NMR spectral analysis, Ethyl 3-chloropropionate C-NMR spectral analysis ect.
Background: Exposure to organochlorine compounds (OCs) can alter thyroid function in humans, and hypothyroidism during early life can adversely affect a childs neurodevelopment. Objectives: In this study we aimed to assess ...
Background: Exposure to organochlorine compounds (OCs) can alter thyroid function in humans, and hypothyroidism during early life can adversely affect a childs neurodevelopment. Objectives: In this study we aimed to assess ...
ABSTRACT. Background: The purpose of this study was to evaluate the association among serum organochlorine pesticide residues, glutathione S-transferase M1 genetic polymorphism and female breast cancer. Methods: A 1:1 matched case-control study of 140 newly diagnosed breast cancer patients and 140 non-cancer female patients who consulted the five largest hospitals in the Tangshan city from September 2006 to October 2007. Results: The result showed higher risk of breast cancer among subjects with higher levels of serum DDT and HCH residue, the OR was 3.18 (95%CI, 1.11 - 9.07) and 5.02 (95%CI, 1.64 - 16.56).The value of ORe associated with single environmental factor DDT high residues, and ORg associated with single GSTM1 deletion genotype were respectively 3.86 (1.20 - 12.47) and 1.34 (0.36 - 5.08). The OReg associated with combined action of two factors was 5.59 (1.63 - 18.90), and the value of interaction parameters (γ) equaled 1.24. The value of ORe associated with single environmental factor ...
An emulsion polymerized vinylidene chloride copolymer latex having polymerized therein vinylidene chloride and one or more ethylenically unsaturated monomers copolymerizable therewith. The latex contains both an anionic and a nonionic surfactant. The latex remains stable following addition of about 2 percent by weight of a cationic antistatic agent on a polymer solids basis.
Beyond Pesticides, June 20, 2011) In a study published this week in the journal Pediatrics, researchers report findings that link mothers exposure to organochlorine pesticides during pregnancy with infants sizes at birth. The trend shows that the more mothers are exposed to the pesticides during pregnancy, the higher the chances are for reduced birth weight and length of their newborns. Comprising a total of 494 women and infants in Valencia, Spain from the years 2003-2006, the study evaluates umbilical cord blood for residues of four pesticides or pesticide degradates: DDT, DDE, hexachlorobenzene (HCB), and beta-hexachlorocyclohexane. The results show that a 10-fold increase in pesticide concentrations in the blood corresponds to a reduction in birth weight of 2-4 ounces.. Additional results are correlated to specific pesticides. Higher concentrations of DDT results in a reduction in head circumference of 0.26cm, which the researchers call a "significant decrease." Additionally, a decrease of ...
We are constantly exposed to these toxins in our own lifestyles but they are also found in the soil and within the animals and animal products we eat. Aside from overly acidifying the bodys blood when these toxins are released, th accumulation of these toxins can also depress the function of thyroid which greatly affects metabolism on its own. The Physical Activity Sciences Laboratory in Canada did a study on this here:http://toxsci.oxfordjournals.org/content/67/1/46.full where it showed: "Organochlorine compounds are released from body fat into the bloodstream during weight loss. Because these compounds may impair thyroid status, which is implicated in the control of resting metabolic rate (RMR), the aim of this study was to determine if the augmentation in plasma organochlorine concentrations might be associated with the decrease in serum T(3) concentration and RMR observed in response to body weight loss. Plasma organochlorine concentrations, serum T(3) concentration, and RMR were measured ...
The most common technique used for the analysis of Organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) at trace level is gas chromatography coupled to an electron capture detector (GC-ECD). Click to read more...
Vinylidene Chloride its chemical name is 1,1-dichloroethylene, a colourless, dense, toxic, volatile, flammable liquid belonging to the family of organic halogen compounds.
TY - JOUR. T1 - Serum persistent organic pollutants (POPs) and prostate cancer risk. T2 - A case-cohort study. AU - Lim, Jung eun. AU - Nam, Chungmo. AU - Yang, Jiyeon. AU - Rha, KoonHo. AU - Lim, Kyung Min. AU - Jee, Sun Ha. PY - 2017/7/1. Y1 - 2017/7/1. N2 - It is still unclear whether persistent organic pollutants (POPs) exposure increases the prostate cancer incidence risk. This prospective cohort study evaluated the associations between serum POPs concentrations and prostate cancer risk. Within a case-cohort study, we identified 110 people diagnosed with prostate cancer and randomly selected 256 sub-cohort participants without prostate cancer. Serum concentrations of 32 polychlorinated biphenyl (PCB) congeners and 19 organochlorine pesticides (OCPs) were measured. The hazard ratios (HRs) and 95% confidence interval (95% CI) for determining the associations between POPs and risk of prostate cancer were estimated using the weighted Cox regression model. Compared to the lowest tertile, ...
Earlier this week, Slate reported that the EPA is considering a new rule for 2016 that could impact the use of methylene chloride (also known as dichloromethane), a chemical commonly found in paint strippers. The rule could result in anything from new warning label requirements to an outright ban.. According to OSHA, workers using methylene chloride "are at increased risk of developing cancer, adverse effects on the heart, central nervous system and liver, and skin or eye irritation." While the Slate piece emphasized the risk of sudden, fatal heart attacks, methylene chloride can also pose serious health dangers when absorbed through the skin. (Methylene chloride will eat through latex gloves, so workers need rubber or PVA gloves to stay protected.) In recent years, OSHA has issued hazard alerts for methylene chloride, with a special focus on the dangers it poses for workers engaged in bathtub refinishing. According to OSHA, at least 14 American workers died refinishing bathtubs due to methylene ...
Business Directory for Methylene Chloride Suppliers in Mumbai - Get contact details of Methylene Chloride Manufacturers, Wholesale Methylene Chloride Exporters, Best Methylene Chloride Traders & Distributors Across the Mumbai.
Organochlorine contaminants including 12 polychlorinated biphenyl (PCB) congeners and 18 insecticides were determined in water, pore water and sediments of the Jiulong River Estuary and Western Xiamen Sea, China. The results showed that the levels of the total PCBs ranged from non-detectable to 1500 ng l-1 in water, from 209 to 3870 ng l-1 in pore water, and from 2.78 to 14.8 ng g-1 dry weight in sediments. Total organochlorine insecticide concentrations were from below the limit of detection to 2480 ng l-1 in water, from 267 to 33400 ng l-1 in pore water, and from 4.22 to 46.3 ng g-1 dry weight in sediments. Concentrations of PCBs and insecticides in pore water were significantly higher than those in surface water, due to the high affinity of these hydrophobic compounds for sediment phase. The PCB congeners with the highest concentrations were CB153, CB180 and CB194, which together accounted for 6887% of total PCBs in water, pore water and sediment. Among the hexachlorocyclohexane (HCH) ...
Exposure to methylene chloride occurs mostly from breathing contaminated air, but may also occur through skin contact or by drinking contaminated water. Breathing in large amounts of methylene chloride can damage the central nervous system. Contact of eyes or skin with methylene chloride can result in burns. Methylene chloride has been found in at least 882 of 1,569 National Priorities List sites identified by the Environmental Protection Agency (EPA).
Disclosed is a process for the preparation of a coated oriented plastic container, which comprises coating an aqueous latex or organic solvent solution of a vinylidene chloride copolymer on at least one surface of a parison, preform or sheet for formation of container which is formed by hot molding of a molecularly orientable thermoplastic resin, drying the coated parison, preform or sheet to form a coating layer, and subjecting the formed coated structure to draw molding such as biaxial draw blow molding or draw forming, wherein the coating layer of the vinylidene chloride copolymer is crystallized at the step of forming the coating layer or the draw molding step. In the coated oriented plastic container prepared according to this process, the adhesion of the coating layer of the vinylidene chloride copolymer to the plastic container substrate is highly improved, and even under severe conditions, peeling of the coating layer is prevented. Moreover, the gas barrier property, strength and chemical
What is 1,1-Dichloroethylene? 1,1-Dichloroethylene (1,1-DCE) is a man-made substance used to make fire retardant fibers and polyethylene food wraps. It is a clear, colorless, flammable liquid with a mild, sweet smell. Dichloroethylene evaporates quickly at room temperature and can pollute the air. When 1,1-DCE gets into water or on soil it evaporates quickly. However, in groundwater or soil, it breaks down very slowly. Most 1,1-DCE in the environment results from industrial use and improper disposal.
The impact of persistent organochlorine pollutants (POPs)[4], of which PCBs and DDT are two, on human fertility is still unknown and there are limited and contradictory findings so far as to whether PCBs and DDT/DDE damage human sperm. This study, which is part of a wide-ranging project known as INUENDO[5], set out also to see whether these two POPs damage sperm by altering its chromatin integrity. (Chromatin is the DNA and associated proteins that make up a chromosome ...
Methylene Chloride (MC). Familiarization with MC. MC is used as a solvent, especially where quick evaporation is needed Methylene chloride dissolves oils, fats, waxes, resins, rubber. 1a. Familiarization with MC. Methylene chloride is used: in paint strippers as an ingredient in adhesives...
BACKGROUND: Diabetes is a major threat to public health in the United States and worldwide. Understanding the role of environmental chemicals in the development or progression of diabetes is an emerging issue in environmental health. OBJECTIVE: We assessed the epidemiologic literature for evidence of associations between persistent organic pollutants (POPs) and type 2 diabetes. METHODS: Using a PubMed search and reference lists from relevant studies or review articles, we identified 72 epidemiological studies that investigated associations of persistent organic pollutants (POPs) with diabetes. We evaluated these studies for consistency, strengths and weaknesses of study design (including power and statistical methods), clinical diagnosis, exposure assessment, study population characteristics, and identification of data gaps and areas for future research. CONCLUSIONS: Heterogeneity of the studies precluded conducting a meta-analysis, but the overall evidence is sufficient for a positive ...
Creative-Proteomics offer cas 39765-80-5 TRANS-NONACHLOR (13C10, 98%) 100 UG/ML IN NONANE. We are specialized in manufacturing Stabel Isotope Labeled Analytical Standard products.
EWGs Tap Water Database Dichloromethane (methylene chloride) results for Byesville | Dichloromethane (methylene chloride). Find out what is in your tap water
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Sigma-Aldrich offers abstracts and full-text articles by [Marta G Commendatore, Marcos A Franco, Patricia Gomes Costa, Italo B Castro, Gilberto Fillmann, Gregorio Bigatti, José L Esteves, Marina L Nievas].
Find Leading Methylene Chloride Manufacturers, Suppliers, Exporters and Traders at one place. Contact Exporters India for more information about Methylene Chloride manufacturers
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
An organochloride, organochlorine compound, chlorocarbon, or chlorinated hydrocarbon is an organic compound containing at least one covalently bonded atom of chlorine that has an effect on the chemical behavior of the molecule. The chloroalkane class (alkanes with one or more hydrogens substituted by chlorine) provides common examples. The wide structural variety and divergent chemical properties of organochlorides lead to a broad range of names and applications. Organochlorides are very useful compounds in many applications, but some are of profound environmental concern. Chlorination modifies the physical properties of hydrocarbons in several ways. The compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. Aliphatic organochlorides are alkylating agents because chloride is a leaving group. Many organochlorine compounds have been isolated from natural sources ranging from bacteria to humans. Chlorinated organic compounds are found in nearly every ...
BACKGROUND: The use of biomarkers of environmental exposure to explore new risk factors for pancreatic cancer presents clinical, logistic, and methodological challenges that are also relevant in research on other complex diseases. OBJECTIVES: First, to summarize the main design features of a prospective case-control study -nested within the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort- on plasma concentrations of persistent organic pollutants (POPs) and pancreatic cancer risk. And second, to assess the main methodological challenges posed by associations among characteristics and habits of study participants, fasting status, time from blood draw to cancer diagnosis, disease progression bias, basis of cancer diagnosis, and plasma concentrations of lipids and POPs. Results from etiologic analyses on POPs and pancreatic cancer risk, and other analyses, will be reported in future articles. METHODS: Study subjects were 1533 participants (513 cases and 1020 controls ...
A Persistent Organic Pollutant (or POP) is a carbon-based chemical substance which deteriorates slowly and therefore remains in the environment fo...
Indian Customs ADD Notification 58/2015-Cus (ADD),Seeks to levy provisional anti dumping duty on Methylene Chloride originating in or exported from the People?s Republic of China and Russia for a period not exceeding six months ,Indian Customs ADD Notification No. 58/2015-Cus (ADD)
A novel role of differentiation-inducing factor-1 in Dictyostelium development, assessed by the restoration of a developmental defect in a mutant lacking mitogen-activated protein kinase ERK2 ...
Women who live near California farm fields sprayed with organochlorine pesticides may be more likely to give birth to children with autism, according to a study by state health officials to be
The Centre for Science & Environment checks pesticide levels in blood from people of four Punjab villages and finds the levels of organochlorine pesticides shocking. Harjinder Sidhu reports.
Non-polar HP-PAS5 columns specifically designed and processed for the analysis of organochlorine pesticides. With an operating temperature range of -60...
Alternative Medicine Review is the highest impact, peer-reviewed CAM journal for healthcare practitioners with FREE web access to archives, abstract database and more.
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The Toxics Use Reduction Institute helps Massachusetts companies and communities find innovative, cost effective ways to reduce toxic chemical use at the source, rather than treat wastes once produced.
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The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database ...
Examine by thin-layer chromatography (2. Solubility freely soluble in water and in ethanol (96 per cent), Eedgra slightly soluble in methylene chloride. 2. Netland PA, Sugrue SP, Albert OM, Shore Jw.
In the Mediterranean Sea, top predators, and particularly cetacean odontocetes, accumulate high concentrations of organochlorine contaminants and toxic metals, incurring high toxicological risk. In this paper we investigate the use of the skin biopsies as a non-lethal tool for evaluating toxicological hazard of organochlorines in Mediterranean cetaceans, presenting new data 10 years after the paper published by Fossi and co-workers [Mar. Poll. Bull. 24 (9) (1992) 459] in which this new methodology was first presented. Some organochlorine compounds, now with worldwide distribution, are known as endocrine disrupting chemicals (EDCs). Here the unexplored hypothesis that Mediterranean cetaceans are potentially at risk due to organochlorines with endocrine disrupting capacity is investigated. High concentrations of DDT metabolites and PCB congeners (known as EDCs) were found in the different Mediterranean species (Stenella coeruleoalba, Delphinus delphis, Tursiops truncatus and Balaenoptera ...
Background: There is conflicting epidemiological evidence concerning an increase in risk of non-Hodgkins lymphoma (NHL) associated with elevated blood levels of persistent organochlorine (OC) pesticides and polychlorobiphenyls (PCBs).. Methods: We measured the concentration of 17 OC pesticides, including hexachlorobenzene (HCB), four lindane isomers (α-, β-, γ- and δ-hexachlorocyclohexane (HCH)), two chlordane species (heptachlor and oxy-chlordane), four cyclodiene insecticides (aldrin, dieldrin, endrin and mirex), six dichloro-diphenyl-trichloroethane (DDT) isomers and nine PCB congeners (PCBs 28, 52, 101, 118, 138, 153, 170, 180 and 194) in plasma samples of 377 subjects, including 174 NHL cases and 203 controls from France, Germany and Spain. The risk of NHL and its major subtypes associated with increasing blood levels of OC pesticides and PCBs was calculated using unconditional logistic regression.. Results: Risk of NHL, diffuse large B cell lymphoma (DLBCL) and chronic lymphatic ...
TY - JOUR. T1 - Novel estrogenic action of the pesticide residue β-hexachlorocyclohexane in human breast cancer cells. AU - Steinmetz, Rosemary. AU - Young, Peter C M. AU - Caperell-Grant, Andrea. AU - Gize, Edward A.. AU - Madhukar, Burra V.. AU - Ben-Jonathan, Nira. AU - Bigsby, Robert. PY - 1996/12/1. Y1 - 1996/12/1. N2 - The estrogenic action of some persistent organochlorine pesticide residues may play a role in the progression of hormonally responsive tumors of the breast and uterus. The prototypical xenoestrogen o,p′-dichlorodiphenyltrichloroethane (o,p′-DDT) acts by binding and activating the estrogen receptor (ER). The present study focuses attention on the mechanisms through which another organochlorine compound, β-hexachlorocyclohexane (β-HCH), exerts estrogen-like effects in human breast cancer cells. Both o,p′DDT and β-HCH stimulated proliferation in a dose-dependent manner in the ER-positive cell lines MCF-7 and T47D but not in the ER-negative lines MDA-MB231, MDA-MB468, ...
A mortality study on the carcinogenic risk among workers exposed to various organochlorine pesticides was updated from 1976 through 1987. The original study had included white male workers employed for at least 6 months before 31 December 1964 at the four facilities. The workers at the four facilities exposed to the following chemicals: chlordane (57749); heptachlor (76448) and endrin (72208); ald
Vinylidene chloride, a colourless, dense, toxic, volatile, flammable liquid belonging to the family of organic halogen compounds, used principally in combination with vinyl chloride, acrylonitrile, or methyl methacrylate for the manufacture of a class of plastics called saran. Vinylidene chloride
Persistent organic pollutants (POPs) are organic compounds that are resistant to environmental degradation through chemical, biological, and photolytic processes. Because of their persistence, POPs bioaccumulate with potential adverse impacts on human health and the environment. The effect of POPs on human and environmental health was discussed, with intention to eliminate or severely restrict their production, by the international community at the Stockholm Convention on Persistent Organic Pollutants in 2001. Many POPs are currently or were in the past used as pesticides, solvents, pharmaceuticals, and industrial chemicals. Although some POPs arise naturally, for example volcanoes and various biosynthetic pathways, most are man-made via total synthesis. POPs typically are halogenated organic compounds (see lists below) and as such exhibit high lipid solubility. For this reason, they bioaccumulate in fatty tissues. Halogenated compounds also exhibit great stability reflecting the nonreactivity ...
Beyond Pesticides, July 25, 2008) San Francisco, California - On July 24, 2008, a broad coalition of farmworker, public health, and environmental groups filed a lawsuit against the Environmental Protection Agency (EPA) to stop the continued use of a hazardous pesticide called endosulfan. The coalition is demanding action from EPA to protect children, farmworkers, and endangered species. Endosulfan is an organochlorine, part of the same family of chemicals as DDT, which EPA banned in 1972. Like other organochlorine pesticides, endosulfan is persistent in the environment and poisons humans and wildlife both in agricultural areas and in regions far from where it was applied.. "This dangerous and antiquated pesticide should have been off the market years ago," said Karl Tupper, a staff scientist with Pesticide Action Network. "The fact that EPA is still allowing the use of a chemical this harmful shows just how broken our regulatory system is.". Acute poisoning from endosulfan can cause headaches, ...
A transparent heat shrinkable, multilayer film comprising: (a) at least one layer comprising a vinylidene chloride-vinyl chloride copolymer; and (b) at least one layer comprising a thermoplastic polymer; and (c) a sufficient amount of a dioxazine violet pigment to provide a film which retains an aesthetically acceptable violet appearance despite exposure to elevated temperatures and/or irradiation.
Many liquid paint strippers and solvents contain a toxic chemical called methylene chloride. Exposure can lead to death or serious illness. Workers are at risk when they inhale methylene chloride vapors and when it comes in contact with their skin ...
In order to assess the trend in the body load of organochlorine pesticide residues in Great Britain, between July 1965 and June 1967 samples of fat were taken during routine necropsies on 247 subjects over 3 years old and on 44 stillborn or premature babies and infants below the age of 3. The levels of the three main pesticides, B.H.C., dieldrin, and D.D.T., were lower than those found in an earlier survey carried out in 1963 and 1964. No marked differences were observed in levels throughout Britain, but the levels in man were higher than those in women. Britain compares favourably with other countries in which similar surveys have been done.. ...
Exposure to high concentrations of persistent organochlorines may cause fetal toxicity, but the evidence at low exposure levels is limited. Large studies with substantial exposure contrasts and appropriate exposure assessment are warranted. Within th
Dioxin analysis in a regulated fashion requires conformity to the specifications of EPA Method 1613b. In this note, samples destined for analysis for dioxin content are analyzed in a comprehensive fashion using high resolution GC/MS. The objective is to uncover what other Persistent Organic Pollutants (POPs) are present.
List of Persistent Organic Pollutants companies, manufacturers and suppliers for the Oil, Gas and Refineries industry in Belgium on Health and Safety - Environmental XPRT
Request for Sample Report: www.9dresearchgroup.com/report/161075/request-sample. The report begins with a market overview and moves on to cover the growth prospects of the Endosulfan Lactone market. The current environment of the global Endosulfan Lactone industry and the key trends shaping the market are presented in the report. Insightful predictions for the Endosulfan Lactone market for the coming few years have also been included in the report. These predictions feature important inputs from leading industry experts and take into account every statistical detail regarding the Endosulfan Lactone market.. Combining the data integration and analysis capabilities with the relevant findings, the report has predicted strong future growth of the Endosulfan Lactone market in all its geographical and product segments. In addition to this, several significant variables that will shape the Endosulfan Lactone industry and regression models to determine the future direction of the market have been ...
Methylene Chloride: A chlorinated hydrocarbon that has been used as an inhalation anesthetic and acts as a narcotic in high concentrations. Its primary use is as a solvent in manufacturing and food technology.
Some types of organochlorides have significant toxicity to plants or animals, including humans. Dioxins, produced when organic matter is burned in the presence of chlorine, and some insecticides such as DDT, are persistent organic pollutants which pose dangers when they are released into the environment. For example, DDT, which was widely used to control insects in the mid 20th century also accumulates in food chains and causes reproductive problems (e.g., eggshell thinning) in certain bird species.[11] Some organochlorine compounds, such as sulfur mustards, nitrogen mustards, and Lewisite, are even used as chemical weapons due to their toxicity.. However, the presence of chlorine in an organic compound does not ensure toxicity. Some organochlorides are considered safe enough for consumption in foods and medicines. For example, peas and broad beans contain the natural chlorinated plant hormone 4-chloroindole-3-acetic acid (4-Cl-IAA);[12][13] and the sweetener sucralose (Splenda) is widely used ...
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This fatty acid mixture contains long chain saturated fatty acid methyl esters in methylene chloride for the qualitative identification and quantitation of unknowns. Microbial fatty acid profiles are unique from one species to another and can therefore be
Public health advocates have filed suit against US EPA over a stalled rulemaking to ban the use of methylene chloride (MCL), a common ingredient in paints and paint strippers.
Non-Hodgkins lymphoma (NHL) is the third most rapidly increasing cancer in the United States. HIV-related NHL is responsible for some of the increase since the early 1980s. However, it cannot explain the steady increase in the incidence rates in earlier years, nor the entire increase shown recently. A possible role of environmental exposures is receiving attention. One possibility is that exposure to organochlorines (OCs) may be related to the occurrence of NHL. NCI is currently designing a large population-based case-control study to investigate this hypothesis further by analyzing OC levels in blood collected at the time of interview from cases of NHL and their matched controls. At the time of these interviews, cases in the main case-control study would most likely have already received chemotherapy. If chemotherapy changes the blood levels of OCs, this may lead to misclassification of exposure among cases and eventually to biased risk estimates. The purpose of this pilot study is to estimate ...
The chlorinated cyclic sulfite diester Endosulfan is a cyclodien insecticide possessing a relatively board spectrum of activity. Technical-grade is a mixture of two stereo isomers, α and β-Endosulfan, in a ratio of 7:3. It is used extensively throughout the world as a contact and stomach insecticide and an acaricide on field crops, vegetables, and fruit crops. Because of its abundant usage and potential transport, Endosulfan contamination is frequently found in the environment at considerable distances from the point of its original applications (Mansingh and Wilson, 1995; Miles and Pfeuffer, 1997). Endosulfan has been detected in the atmosphere, soils, sediments, surface and rain water, and food stuffs. Its is extremely toxic to fish and aquatic invertebrates (Sunderam et al., 1992) and has been implicated in mammalian gonadal toxicity (Sinha et al., 1997), genotoxicity (Chaudhuri etal., 1999), and neurotoxicity (Pual and Balasubramaniam, 1997). These health and environmental concerns have ...
Organochlorine (OC) pesticides have recently been associated with type 2 diabetes in several non-Asian general populations. As there is currently an epidemic of type 2 diabetes mellitus in Asia. The prevalence and incidence of diabetes is increasing rapidly worldwide including many Arab Gulf countri …
River otters have specialized senses to deal with their environment, including good vision and sensitive whiskers as well as the ability to stay submerged in water for minutes at a time. When they...
In the modern society, people accumulate POPs through daily exposure (here, the contaminated adult stage). If individuals do not adopt measures to reduce their level of contamination, then those contaminants can be transferred from parents to fetuses. If people of reproductive age reduce the contaminants in their body before conception occurs, they can decrease pollutant levels in sperm and oocytes. If expecting mothers reduce their intake of fatty meat and fatty fish during pregnancy, they could reduce their exposure to environmental chemicals. Lower levels of exposure to the mother would then lead to diminished transplacental exposure and a less contaminated uterine environment (the fetal stage).. As noted above, reducing the breastfeeding period to a maximum of 1 year has been shown to decrease POP levels for newborns and infants.3 However, if the level of contaminants in the mothers body can be reduced before pregnancy so that breast milk is less contaminated, the breastfeeding period ...
But This Time Its Nature Doing the Dirty Work! In the late 1970s, the U.S. government banned a group of manmade chemical compounds known as PCBs (polychlorinated biphenyls) thanks to scientific evidence that they caused harm to both people and animals. This group of[...]
Msagati, Titus AM and Mamba, Bhekie B Determination of persistent cyclic organochlorine residues in sediment slurry by microporous membrane liquid-liquid extraction and gas chromatography-mass spectrometry. Water SA (Online), Jan 2011, vol.37, no.1, p.01-06. ISSN 1816- ...
in Clinical Chemistry & Laboratory Medicine (2004), 42(2), 222-227. The carcinogenic potential of environmental xenoestrogens (i.e., organochlorines) is a matter of controversy. Their pathogenic role as promoters in breast cancer has been previously suggested. In Europe ... [more ▼]. The carcinogenic potential of environmental xenoestrogens (i.e., organochlorines) is a matter of controversy. Their pathogenic role as promoters in breast cancer has been previously suggested. In Europe, despite their prohibition since the 70s, residues persist in soil and rivers resulting in a widespread contamination of the general population. In this study, we have compared the serum levels of p,p-1,1-dichloro-2, 2-bis (4-chlorophenyl) ethylene (DDE) and hexachlorobenzene (HCB) in 231 women at the time of breast cancer discovery and in 290 agematched healthy controls. p,p-DDE was found in 76.2% of cases and in 71.1% of controls but HCB was present only in 12.6% of cases (29 from 231) and in 8.9% of controls ...
The Stockholm Convention on POPs is a global treaty to protect human health and the environment from chemicals that remain intact in the environment for long periods, become widely distributed geographically and accumulate in the fatty tissue of humans and wildlife. By the legally bound Government Resolution No. 1572/2005 the NIP of the Stockholm Convention on POPs was taken into a consideration. Short-, mid- and long-term actions are included in the NIP for period of 10 years.
The incidence of obesity and diabetes has dramatically increased worldwide. From 1980 to 2008, the global prevalence of obesity has doubled in both men and women [1], whereas the number of people with diabetes increased from 153 million in 1980 to 347 million in 2008 [2]. A recent report realised in the European Union (EU) highlights that overweight and obesity affect more than 50% of the adult population whereas diabetes is now affecting over 30 million people [3]. In the United States (US), the prevalence of obesity among children and adolescents has almost tripled since 1980 [4], and 12% of children aged 2 through 5 years were obese in 2009-2010 [5]. In addition to enhancing the risk of premature death, diabetes and obesity are major causes of multiple complications, including hypertension, cardiovascular diseases, asthma, blindness, limb amputation, and sleep apnea, that generate enormous economic costs for both health care and loss of productivity to society. Total annual economic cost of ...
Annex V lists the chemicals and articles the use of which is prohibited in the European Union and which shall not be exported. Chemicals and articles listed in Part 1 of Annex V are subject to export ban and belong to the category of persistent organic pollutants; Part 2 of Annex V lists chemicals and articles subject to export ban other than persistent organic pollutants ...
Quick DetailsCAS No.:75-09-2Other Names: DichloromethaneMF:   CH2Cl2, CH2Cl2EINECS No.:200-838-9Place of Origin:Shandong,China (Mainland)Type:Pharmaceutical  Intermediates Purity:   99.9%MW:84.93Model Number:   001Application:   pharmaceutical intermediates, polyurethAppearance:   colorless liquidname:   Methylene ChlorideBoiling Point:39.75°C (103.5°...
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We would like to respond to the comments that you received from Hearne and Lednar regarding our paper on Comparing Toxicologic and Epidemiologic Studies: Methylene Chloride-A Case Study. We disagree with Hearne and Lednars assertion that our presenting separate risk estimates for each of the exposure groups in the Kodak study is inappropriate and misleading. They suggest that presenting separ
IARC. Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Humans. Geneva: World Health Organization, International Agency for Research on Cancer, 1972-PRESENT. (Multivolume work). Available at: http://monographs.iarc.fr/ENG/Classification/index.php. V19 447 (1979 ...
12.95 g (0.0334 mol) of compound (IV) purified by crystallization of Example 5 were mixed with 38 ml of N,N-dimethylacetamide and thereafter 7.03 g (0.1003 mol) of potassium methoxide were added, while holding the temperature to between 20°C and 30°C, whereby a dark brown mixture was obtained. The system was held at approximately 25°C for about 23 hours, after which, once the reaction was complete, the pH was adjusted to 7 with the addition of 3.82 ml of acetic acid. The N,N-dimethylacetamide was removed at reduced pressure at an internal temperature of not more than 75°C. 65 ml of water and 50 ml of methylene chloride were added over the thus obtained residue, followed by decantation of the phases. Once the phases were decanted, the aqueous phase was extracted a with further 3x25 ml of methylene chloride, the organic phases were pooled and the resulting solution dried over anhydrous sodium sulfate, was filtered and washed, and evaporated at reduced pressure in a rotavap, to give a crude ...
The aim of the study was to induce and enhance the degradation of hexachlorobenzene (HCB), a highly-chlorinated persistent organic pollutant, in two ecologically different tropical soils: a paddy soil (PS) and a non-paddy ...
A method for destroying chloroorganic waste components on catalysts, particularly bulk metal nickel (99.99%), nichrome (80% Ni and 20% Cr), and chromel (90% Ni and 10% Cr) is proposed. The process is...
The OPSA-150 is a new organic pollutant monitor that uses HORIBAs proprietary Rotary Cell Length Modulation, a measuring technique incorporating...
Kupryianchyk D., Hovander L., Jones B., et al. Organohalogen Compounds, 2009. 71: p.002720-002725. Feline hyperthyroidism has been observed to increase all over
China 100kw 384VDC-492VDC Input to 220VAC Single Phase Output Inverter, Find details about China Big Capacity Inverter, Hybrid Invertors from 100kw 384VDC-492VDC Input to 220VAC Single Phase Output Inverter - Yueqing Bangzhao Electric Co., Ltd.
methoxychlor definition: A white crystalline mixture, Cl3CCH(C6H4OCH3)2, made use of as an insecticide.; A synthetic organochlorine used as an insecticide.
This tubing is deactivated intermediate polar, for use with injection solvents such as acetone, methylene chloride (dichloromethane), and toluene. It has a maximum temperature of 360 °C.
गुणवत्ता Thermally संरक्षित Varistor निर्माताओं & निर्यातक - खरीदें 10KA 350VDC 20D Surge Varistor TMOV , Zinc Oxide Varistors चीन से निर्माता.
Schneider Electric USA. XUM1ANBNL2 - photo-electric sensor - XUM - reflex - Sn 4m - 12..24VDC - cable 2m.
Starchem SynStryp Paint Stripper, 5 litres.Industrial strength paint stripper for those difficult jobs.Contains:Methylene Chloride (Dichloromethane - DCM)MethanolPhenolFormic AcidAcetic AcidThis is a very powerful and potentially dan
A new draft risk evaluation published by EPA identifies adverse health risks associated with acute and chronic inhalation exposure to methylene chloride.
0 ml of a 100 gl solution i n 2-ethylhexane-1,3-diol R in methylene chloride R to the test solution, to the reference solution and to the blank solution, then shake for 1 min. 1 mm is sufficient depth).