Beryllium. An element with the atomic symbol Be, atomic number 4, and atomic weight 9.01218. Short exposure to this element can lead to a type of poisoning known as BERYLLIOSIS.
A form of pneumoconiosis caused by inhaled rare metal BERYLLIUM or its soluble salts which are used in a wide variety of industry including alloys, ceramics, radiographic equipment, and vacuum tubes. Berylliosis is characterized by an acute inflammatory reaction in the upper airway leading to BRONCHIOLITIS; PULMONARY EDEMA; and pneumonia.
Transmembrane proteins that form the beta subunits of the HLA-DP antigens.
A group of the D-related HLA antigens (human) found to differ from the DR antigens in genetic locus and therefore inheritance. These antigens are polymorphic glycoproteins comprising alpha and beta chains and are found on lymphoid and other cells, often associated with certain diseases.
Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices.
Air pollutants found in the work area. They are usually produced by the specific nature of the occupation.
Inorganic compounds that contain aluminum as an integral part of the molecule.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
The science, art, or technology dealing with processes involved in the separation of metals from their ores, the technique of making or compounding the alloys, the techniques of working or heat-treating metals, and the mining of metals. It includes industrial metallurgy as well as metallurgical techniques employed in the preparation and working of metals used in dentistry, with special reference to orthodontic and prosthodontic appliances. (From Jablonski, Dictionary of Dentistry, 1992, p494)
Radioactive substances which act as pollutants. They include chemicals whose radiation is released via radioactive waste, nuclear accidents, fallout from nuclear explosions, and the like.
The branch of mathematics dealing with the purely logical properties of probability. Its theorems underlie most statistical methods. (Last, A Dictionary of Epidemiology, 2d ed)
A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.
Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care. (Dictionary of Health Services Management, 2d ed)

Mechanism of interaction of Acanthamoeba actophorin (ADF/Cofilin) with actin filaments. (1/202)

We characterized the interaction of Acanthamoeba actophorin, a member of ADF/cofilin family, with filaments of amoeba and rabbit skeletal muscle actin. The affinity is about 10 times higher for muscle actin filaments (Kd = 0.5 microM) than amoeba actin filaments (Kd = 5 microM) even though the affinity for muscle and amoeba Mg-ADP-actin monomers (Kd = 0.1 microM) is the same (Blanchoin, L., and Pollard, T. D. (1998) J. Biol. Chem. 273, 25106-25111). Actophorin binds slowly (k+ = 0.03 microM-1 s-1) to and dissociates from amoeba actin filaments in a simple bimolecular reaction, but binding to muscle actin filaments is cooperative. Actophorin severs filaments in a concentration-dependent fashion. Phosphate or BeF3 bound to ADP-actin filaments inhibit actophorin binding. Actophorin increases the rate of phosphate release from actin filaments more than 10-fold. The time course of the interaction of actophorin with filaments measured by quenching of the fluorescence of pyrenyl-actin or fluorescence anisotropy of rhodamine-actophorin is complicated, because severing, depolymerization, and repolymerization follows binding. The 50-fold higher affinity of actophorin for Mg-ADP-actin monomers (Kd = 0.1 microM) than ADP-actin filaments provides the thermodynamic basis for driving disassembly of filaments that have hydrolyzed ATP and dissociated gamma-phosphate.  (+info)

Exposure of cultured murine peritoneal macrophages to low concentrations of beryllium induces increases in intracellular calcium concentrations and stimulates DNA synthesis. (2/202)

Exposure of humans to beryllium dusts can induce a specific form of chronic pneumonitis that consists mainly of noncaseating granulomas in the lungs. Multiple studies have documented both genetic and immune components of chronic berylliosis. Much work has focused on T cells and their reactivity in berylliosis, but less work has focused on the end effector cells in granulomatous inflammation, macrophages. Because macrophages must become activated to form granulomas, and they become activated by responding to numerous immunomodulatory signals, we investigated the effects of beryllium (BeCl2) on a central signal transduction pathway in macrophages, increases in intracellular calcium ([Ca2+]i). Exposure of cultured murine peritoneal macrophages to low, nontoxic concentrations induced successive spikes or oscillations in [Ca2+]i. Concentrations as low as 5 nM induced significant increases in [Ca2+]i. The source of the increased [Ca2+]i was exclusively extracellular in that increases in [Ca2+]i could be completely blocked by chelating extracellular Ca2+, were inhibited by the Ca2+ channel blocker verapamil, and exposure of macrophages to BeCl2 had no effect on IP3 concentrations. DNA synthesis, a Ca2+-sensitive function, was enhanced in dividing 1LN cells and induced de novo in quiescent macrophages. Furthermore, BeCl2 enhanced DNA synthesis in the absence of coexposure to the protein kinase C activator phorbol myristate acetate. These data support the hypothesis that beryllium toxicity is in part the result of altered Ca2+ metabolism in mononuclear phagocytes consequent to reversible opening of plasma membrane channels.  (+info)

Identification of pathogenic T cells in patients with beryllium-induced lung disease. (3/202)

Chronic beryllium disease (CBD) is caused by beryllium exposure and is characterized by granulomatous inflammation with accumulation of CD4+ T cells in the lung. We analyzed TCR beta-chain and alpha-chain genes expressed by these CD4+ T cells. In the lungs of individual patients, as well as among four of five CBD patients studied, different oligoclonal expansions within the Vbeta3 subset were found to express homologous or even identical CDR3 amino acid sequences. These related expansions were specific for CBD patients, were compartmentalized to lung, and persisted at high frequency in patients with active disease. Limiting dilution cloning and analysis of coexpressed TCR alpha-chain genes confirmed that these TCRs were selectively expanded by a common Ag involving beryllium. Overall, homologous TCR beta- and alpha-chains showed identical V regions and invariant charged residues within the CDR3 but considerable variability in TCRJ usage. Remarkably, CBD patients expressing nearly identical TCRs did not share common HLA-DRB1 or DQ alleles. These results implicate particular CD4+ cells in the pathogenesis of CBD and provide insight into how beryllium is recognized in human disease.  (+info)

Partial IL-10 inhibition of the cell-mediated immune response in chronic beryllium disease. (4/202)

Chronic beryllium disease (CBD) provides a human disorder in which to study the delayed type IV hypersensitivity response to persistent Ag that leads to noncaseating pulmonary granuloma formation. We hypothesized that, in CBD, failure of IL-10 to modulate the beryllium-specific, cell-mediated immune response would result in persistent, maximal cytokine production and T lymphocyte proliferation, thus contributing to the development of granulomatous lung disease. To test this hypothesis, we used bronchoalveolar lavage cells from control and CBD subjects to evaluate the beryllium salt-specific production of endogenous IL-10 and the effects of exogenous human rIL-10 (rhIL-10) on HLA expression, on the production of IL-2, IFN-gamma, and TNF-alpha, and on T lymphocyte proliferation. Our data demonstrate that beryllium-stimulated bronchoalveolar lavage cells produce IL-10, and the neutralization of endogenous IL-10 does not increase significantly cytokine production, HLA expression, or T lymphocyte proliferation. Second, the addition of excess exogenous rhIL-10 partially inhibited the beryllium-stimulated production of IL-2, IFN-gamma, and TNF-alpha; however, we measured no change in T lymphocyte proliferation or in the percentage of alveolar macrophages expressing HLA-DP. Interestingly, beryllium salts interfered with an IL-10-stimulated decrease in the percentage of alveolar macrophages expressing HLA-DR. We conclude that, in the CBD-derived, beryllium-stimulated cell-mediated immune response, low levels of endogenous IL-10 have no appreciable effect; exogenous rhIL-10 has a limited effect on cytokine production and no effect on T lymphocyte proliferation or HLA expression.  (+info)

Chronic beryllium disease and cancer risk estimates with uncertainty for beryllium released to the air from the Rocky Flats Plant. (5/202)

Beryllium was released into the air from routine operations and three accidental fires at the Rocky Flats Plant (RFP) in Colorado from 1958 to 1989. We evaluated environmental monitoring data and developed estimates of airborne concentrations and their uncertainties and calculated lifetime cancer risks and risks of chronic beryllium disease to hypothetical receptors. This article discusses exposure-response relationships for lung cancer and chronic beryllium disease. We assigned a distribution to cancer slope factor values based on the relative risk estimates from an occupational epidemiologic study used by the U.S. Environmental Protection Agency (EPA) to determine the slope factors. We used the regional atmospheric transport code for Hanford emission tracking atmospheric transport model for exposure calculations because it is particularly well suited for long-term annual-average dispersion estimates and it incorporates spatially varying meteorologic and environmental parameters. We accounted for model prediction uncertainty by using several multiplicative stochastic correction factors that accounted for uncertainty in the dispersion estimate, the meteorology, deposition, and plume depletion. We used Monte Carlo techniques to propagate model prediction uncertainty through to the final risk calculations. We developed nine exposure scenarios of hypothetical but typical residents of the RFP area to consider the lifestyle, time spent outdoors, location, age, and sex of people who may have been exposed. We determined geometric mean incremental lifetime cancer incidence risk estimates for beryllium inhalation for each scenario. The risk estimates were < 10(-6). Predicted air concentrations were well below the current reference concentration derived by the EPA for beryllium sensitization.  (+info)

Characterization of the hinges of the effector loop in the reaction pathway of the activation of ras-proteins. Kinetics of binding of beryllium trifluoride to V29G and I36G mutants of Ha-ras-p21. (6/202)

This work experimentally confirms the pathway of activation of Ha-ras-p21, which was calculated by the method of Targeted Molecular Dynamics (TMD) (Diaz JF, Wroblowski B, Schlitter J, Engelborghs Y, 1997a, Proteins Struct Funct Genet 28:434-451). The process can be studied experimentally by analyzing the binding of BeF3- to the GDP complex of the active fluorescent mutant Y32W (Diaz JF, Sillen A, Engelborghs Y, 1997b, J Biol Chem 227:23138-23143). Two mutants, V29G and 136G, have been constructed at both sides of the effector loop of the active fluorescent mutant. This was done to check the proposed reaction pathway and to provide further insight into the mechanism of the activation of ras proteins. Both mutations accelerate the conformational isomerization with two orders of magnitude, demonstrating convincingly the role of these residues as hinges of the effector loop in one or more of the transitions of the conformational change. These results provide experimental support to the pathway calculated by TMD analysis.  (+info)

Aluminum fluoride inhibition of cabbage phospholipase D by a phosphate-mimicking mechanism. (7/202)

Aluminum fluoride (AlF(4)(-)) inhibited phospholipase D (PLD) purified from cabbage in both PIP(2)-dependent and PIP(2)-independent assays, consistent with its previously observed effect on mammalian PLD. The possibility that AlF(4)(-) may exert this effect through its known phosphate-mimicking property was examined. Inorganic phosphate, as well as two phosphate analogs, beryllium fluoride and orthovanadate, also inhibited cabbage PLD. Enzyme kinetic studies confirmed that PLD followed Hill kinetics, characteristic for allosteric enzymes, with an apparent Hill coefficient (n(app)) of 3.8, indicating positive cooperativity among multiple substrate-binding sites and suggesting possible functional oligomerization of the enzyme. AlF(4)(-) modification of PLD kinetics was consistent with a competitive mode of enzyme inhibition. It is therefore proposed that AlF(4)(-), and other phosphate analogs, inhibits plant PLD by competing with a substrate phosphate group for a substrate-binding site, thereby preventing the formation of an enzyme-phosphatidyl intermediate. This may be a conserved feature of PLD superfamily enzymes.  (+info)

Theoretical studies of metal-phosphate interactions: interaction of Li+, Na+, K+, Be++, Mg++, and Ca++ with H2PO4- and (CH3O)2PO2-: implications for nucleic acid solvation. (8/202)

Model phosphate-metal solvation complexes have been studied by ab-initio self-consistent-field techniques. The complexes studied include (RO)2PO2-(R = H or CH3) with Li+, Na+, K+, Be++, Mg++, Ca++, H2O, and Cl-. The geometries of the complexes were chosen to approximate reasonable model solvation complexes for phosphate groups in a nucleic acid environment. Calculated energies of formation vary as Be++ greater than Mg++ greater than Ca++ greater than Li+ greater than Na+ greater than K+ for all isostructural complexes, consistent with experimental binding trends. These results suggest that site binding of this type can successfully account for the relative specificities of ion binding in polynucleotides and other phosphate-containing molecules.  (+info)

Beryllium can be harmful if it is inhaled, depending on how much beryllium one inhales and how long the exposure lasts. If beryllium air levels are high enough (greater than 1000 µg/m3), an acute condition can result. This condition resembles pneumonia and is called acute beryllium disease.[6]. Individuals who are sensitive to beryllium can develop an inflammatory reaction in the respiratory system. This is called chronic beryllium disease (CBD), and can occur many years after exposure to higher than normal levels of beryllium (greater than 0.5 µg/m3). This disease can make you feel weak and tired, and can cause difficulty in breathing. It can also result in anorexia, weight loss, and may also lead to right side heart enlargement and heart disease in advanced cases. Some people who are sensitized to beryllium may not have any symptoms. The general population is unlikely to develop acute or chronic beryllium disease because ambient air levels of beryllium are normally very low ...
Objective: Tumor necrosis factor-alpha (TNF-alpha) is a potent cytokine involved in normal immune functions. The aim of this study was to investigate if there is an association between chronic beryllium disease or beryllium sensitization and two variants of the TAT-a gene located at -308 and -238 called TNF-alpha-308*02 and TNF-alpha-238*02. Methods: TNF-alpha-308 and TNF-alpha-238 genotyping was
Beryllium nitrate, also known as beryllium dinitrate, is an ionic beryllium salt of nitric acid with the chemical formula Be(NO3)2. Each formula unit is composed of one Be2+ cation and two NO3− anions. Beryllium nitrate is a toxic chemical, like all other beryllium compounds. It is also an irritant in small doses. When burned, it gives off irritating or toxic fumes. However, when massive short-term exposure occurs, acute pneumonitis can set in, but symptoms do not manifest themselves for 3 days. Beryllium nitrate can be prepared by reacting beryllium hydroxide in nitric acid. s NIOSH Pocket Guide to Chemical Hazards #0054. National Institute for Occupational Safety and Health (NIOSH). Beryllium Nitrate (ICSC). IPCS INCHEM. Retrieved 13 September 2010. Walsh, Kenneth (2009). Beryllium chemistry and processing. ASM International. pp. 121-122. ISBN 978-0-87170-721-5. Retrieved 3 January 2011 ...
The Occupational Safety and Health Administration (OSHA) recently issued a final rule modifying a 40-year-old standard pertaining to exposure to beryllium and beryllium compounds. It contains new requirements for general, construction and shipyard industries. Similar to the recent changes to crystalline silica regulations, the rule is anticipated to save lives and protect workers from serious illnesses. Beryllium and beryllium compounds are lightweight, extremely strong metals used in the aerospace, electrical, energy, telecommunications, medical and defense fields. Beryllium-copper alloys are frequently used for their electrical and thermal conductivity as well as their hardness. Beryllium oxide is used as a component in ceramics for electronics and other electrical equipment because of its heat conductivity, high strength, hardness and electrical insulating properties. Unfortunately, beryllium is highly toxic when inhaled. Inhaling airborne beryllium can result in a lung condition known as ...
Chronic Beryllium Disease (CBD) primarily affects the lungs. CBD may occur among dental laboratory technicians when they inhale dust containing beryllium when working on items such as dental crowns, bridges, and partial denture frameworks made from dental alloys containing beryllium. CBD may develop within months after initial exposure to beryllium or may have a very slow onset and not develop until years after exposure to beryllium has occurred. The amount or length of exposure to beryllium necessary to cause a specific individual to develop CBD is not known, but recent information suggests that even short exposures (weeks or months) to levels of beryllium below OSHAs PEL of 2 μg/m3 averaged over an 8-hour day may lead to CBD in some workers (Source: OSHA). ...
People working or living near beryllium industries have the greatest potential for exposure to beryllium. Lung damage has been observed in people exposed to high levels of beryllium in the air. About 1-15% of all people occupationally-exposed to beryllium in air become sensitive to beryllium and may develop chronic beryllium disease (CBD), an irreversible and sometimes fatal scarring of the lungs. CBD may be completely asymptomatic or begin with coughing, chest pain, shortness of breath, weakness, and/or fatigue. Beryllium has been found in at least 535 of the 1,613 National Priorities List sites identified by the Environmental Protection Agency (EPA).
Occupational exposure to beryllium may cause Chronic Beryllium Disease (CBD), a lung disorder initiated by an electrostatic interaction with the MHC class II human leukocyte antigen (HLA). Molecular studies have found a significant correlation between the electrostatic potential at the HLA-DP surface and disease susceptibility. CBD can therefore be treated by chelation therapy. In this work, we studied the effect of two complexing agents, nitrilotriproprionic acid (NTP) and 4,5-dihydroxy-1,3-benzene disulphonate (Tiron), on the fractionation of beryllium in human serum analysed by graphite furnace atomic absorption spectrometry (GFAAS). We found the average serum beryllium concentration of fourteen non-exposed individuals to be 0.53 (± 0.14) μg l-1, with 21 (± 3)% of the beryllium mass bound to the low molecular weight fraction (LMW), and 79 (± 3)% bound to the high molecular weight fraction (HMW). The addition of Tiron increased the beryllium mass in the HMW fraction, while NTP was not seen to have
Exposure to beryllium can occur when cutting, torching, or welding of the materials listed above. Employees who torch or weld these materials run the greatest risk of exposure. Workers are primarily exposed to beryllium by breathing in dusts, fumes, or mists containing beryllium. Beryllium compounds can also get on the skin, contaminate clothing or food, and be ingested.. Employers must assess employee exposures to beryllium. That includes determining if material being received at the recycling facility contains beryllium. If it does then the employer must determine if dust, fumes, or mists are being created in the processing of the beryllium scrap. This can be done by monitoring employees and areas for in a manner similar to monitoring for other hazardous metals such as lead or cadmium.. Employers must establish and maintain a regulated area if employees are, or can reasonably be expected to be, exposed to airborne beryllium at levels above the listed TWA PEL or STEL in that work area. ...
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Beryllium is a crucial metal in the automotive, aviation, nuclear and consumer industries. The unique combination of high rigidity, low density, thermal stability and conductivity makes it highly useful in consumer products such as cell phones and computers. However, beryllium is considered to be the most toxic non-radioactive element, a class A carcinogen, and the cause oflife-threatening chronic beryllium disease. Even with its poor reputation, its use is continued in commercial, industrial, and governmental applications. In contrast, the efforts to understand berylliums fundamental chemistry have been severely neglected. We are interested in developing a suite of chemical chelators which show strong and selective binding towards beryllium. These studies will lead to specific applications such as the detection of beryllium in the environment, protocols to remediate its contamination, and therapies for individuals exposed to its toxicity. This work will focus on both the computational studies ...
Federal Register Volume 84, Number 189 (Monday, September 30, 2019)] [Rules and Regulations] [Pages 51377-51400] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2019-21037] ======================================================================= ----------------------------------------------------------------------- DEPARTMENT OF LABOR Occupational Safety and Health Administration 29 CFR Parts 1915 and 1926 [Docket No. OSHA-H005C-2006-0870] RIN 1218-AD21 Occupational Exposure to Beryllium and Beryllium Compounds in Construction and Shipyard Sectors AGENCY: Occupational Safety and Health Administration (OSHA), Labor. ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: OSHA is finalizing the proposed rule on occupational exposure to beryllium and beryllium compounds in construction and shipyards by delaying the compliance deadlines for nearly all provisions of the standards to September 30, 2020. The ...
Chronic beryllium disease (CBD) appeared to be waning 30 yrs ago 1. In 1980, less than one case per year was reported and the incidence rate per ton of beryllium produced had declined from between five and 10, to less than 0.001. CBD appeared to be heading toward the medical archives as a success story of environmental control in the absence of understanding of the pathogenesis of the disease. However, in 1982, an immunological test performed on lymphocytes recovered from the bronchoalveolar lavage fluid demonstrated a marked increased in the number of beryllium-sensitive cells in the lung compared to the blood, strongly suggesting that CBD was a hypersensitivity to beryllium 2. The findings of that initial study were confirmed in larger studies 3 and by different investigators 4, 5. Around 10 yrs later, an immunological test (the beryllium lymphocyte proliferation test (BeLPT)) was initially used in cross-sectional studies and later in the surveillance and screening of current and former ...
Synopsis of Global Beryllium Copper Market 2017 Research Report. The report about Global Beryllium Copper Market 2017 constitutes of pervasive fundamental research along with a structured analysis of qualitative as well as quantitative facet by assorted industry connoisseurs and main opinion leaders to gain a profound insight of the market and industry performance.. The report Global Beryllium Copper Market 2017 gives a clear sight of the present-day market scenario which comprises of historical and estimated forthcoming market size on the basis of technological growth, value and volume, prominent economic and governing elements in the market.. Do Inquiry Before Accessing Global Beryllium Copper Market 2017 Report at: https://market.biz/report/global-beryllium-copper-market-icrw/83388/#inquiry. The report Global Beryllium Copper Market 2017 further imparts detail information about approaches and tactics used by elite key players in the Beryllium Copper industry. It also gives an extensive ...
To investigate the effects of short-term exposure of beryllium on the human immune system, the proportion of T-lymphocytes such as CD3+, CD4+, CD8+, CD95, and NK cells, andthe proportion of B cells and TNFα level in peripheral blood and immunoglobulins in the serum of 43 exposed workers and 34 healthy control subjects were studied. External exposure to beryllium was measured by atomic absorption spectrometer as recommended by the NIOSH analytical method 7300. T lymphocyte subpopulation analysis was carried out with flow cytometer. The working duration of exposed workers was less than 3 months and the mean ambient beryllium level was 3.4 μg/m(3), 112.3 μg/m(3), and 2.3 μg/m(3) in molding (furnace), deforming (grinding), and sorting processes, respectively (cited from Kim et al., 2008). However, ambient beryllium level after process change was non-detectable (| 0.1 μg/m(3)). The number of T lymphocytes and the amount of immunoglobulins in the beryllium-exposed workers and control subjects were not
DOE describes Hanford as the worlds largest environmental remediation project. In addition to the remnants of nine plutonium reactors, Hanford holds 4.6 million pounds of irradiated uranium fuel rods and 53 million gallons of radioactive waste buried in underground tanks, some of which have leaked into the groundwater and are moving toward the Columbia River. Radiation has long been the dean of hazards at nuclear cleanup sites, but in April 2009, the Hanford Advisory Board, a group chartered by DOE that includes current and former Hanford workers, medical specialists, environmental and worker-safety advocates, and local government officials, wrote a letter advising the department that from a worker safety perspective ... beryllium currently rates as a greater hazard than radiation. The letter included a disquieting calculation: Studies have found that between 2 percent and 6 percent of people exposed to beryllium will become sensitized or develop CBD. At the time of the letter, 115 of 4,583 ...
We read with great interest the Letter to the Editor by Newman and colleagues(1) in response to our article entitled Industries in the United States with Airborne Beryllium Exposure and Estimates of the Number of Current Workers Potentially Exposed.(2) We commend the authors of the letter for raising a number of issues that, while clearly beyond the scope of our article, are relevant to the heal
PITTSBURGH, June 23, 2017 - The United Steelworkers (USW) today blasted the Administrations proposal to cancel important protections for shipyard and construction workers exposed to beryllium. Under the proposal OSHA released this morning, employers would no longer have to measure beryllium levels in the workplace or provide medical testing to workers at risk of fatal lung disease. In addition, workers would not have the right to wear protective clothing or to shower at the end of the work shift, making it possible for beryllium to be taken home and exposed to spouses and children. Beryllium is a highly useful metal, but it can cause a crippling and sometimes fatal disease that ultimately robs sufferers of the ability to breathe. OSHA issued new beryllium standards in January covering workers in all industries. Todays proposal eliminates most of the provisions covering the maritime and construction industries. The USW has members in both industries, including workers at the Newport News ...
The first problem was one I was handed sort of on a silver platter when I went to the Mass General Hospital in Boston. I was in the department of medicine at Harvard was located at Mass General Hospital in the Huntington laboratories. The Chief of the laboratory, Dr. Joseph Aub who is a world known physician told me about beryllium and the fact that beryllium was causing very severe illness in women who were working in factories to remove the phosphors from inside fluorescent lamp bulbs. They wanted to retrieve the phosphors. One of the key ingredients in the phosphor was beryllium, the metal beryllium. Its the lightest metal with an atomic weight of 9.I think thats right. Its long time ago.. It caused some interesting effects that the scientists have studied, mainly if injected into rabbits it caused bad bone tumors. If it was injected into-well, these women who were scrubbing out the tubes died, almost all of them of severe pulmonary disease as a result of breathing in the beryllium. So he ...
Summary of lung function and beryllium exposure of case 2. (A) Results of pulmonary function tests before, during, and after acute work-related illness. (B) TWA
Schubauer-Berigan MK, Deddens JA, Couch JR, Petersen MR. Risk of lung cancer associated with quantitative beryllium exposure metrics within an occupational cohort. Occup Environ Med. 2011; 68(5): 354-60 ...
United States Beryllium Aluminum Alloy Industry 2016 Market Research Report is a new market research publication announced by Reportstack. This report is a professional and in-depth study on the current state of the Beryllium Aluminum Alloy industry.. The report provides a basic overview of the industry including definitions, classifications, applications and industry chain structure. The Beryllium Aluminum Alloy market analysis is provided for the United States markets including development trends, competitive landscape analysis, and key regions development status.. Development policies and plans are discussed as well as manufacturing processes and Bill of Materials cost structures are also analyzed. This report also states import/export consumption, supply and demand Figures, cost, price, revenue and gross margins.. To access full report with TOC, please visit United States Beryllium Aluminum Alloy Industry 2016 Market Research Report. The report focuses on United States major leading industry ...
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We report the formation of beryllium doped plasma polymerized coatings derived from a helical resonator deposition apparatus, using diethylberyllium as the organometaric source. These coatings had an appearance not unlike plain plasma polymer and were relatively stable to ambient exposure. The coatings were characterized by Inductively Coupled Plasma Mass Spectrometry and X-Ray Photoelectron Spectroscopy. Coating rates approaching 0.7 {mu}m hr{sup {minus}1} were obtained with a beryllium-to-carbon ratio of 1:1.3. There is also a significant oxygen presence in the coating as well which is attributed to oxidation upon exposure of the coating to air. The XPS data show only one peak for beryllium with the preponderance of the XPS data suggesting that the beryllium exists as BeO. Diethylberyllium was found to be inadequate as a source for beryllium doped plasma polymer, due to thermal decomposition and low vapor recovery rates.
Beryllium (chemical symbol Be) is an alkaline earth metallic element, that has no known function in any organism. Unfortunately beryllium is very poisonous, manifesting as chronic beryllium lung disease, which causes premature mortality in one th...
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Analytical techniques have been developed for the determination of carbon in high-purity beryllium. The method, a modification of the combustion-conductometric technique, permits an increase in the sample size of about four times, thereby achieving a fourfold reduction in the lower limit of useful analytical results. Sensitivity has been demonstrated for carbon contents as low as 25 ppm. The accuracy of a solution distillation technique for determination of nitrogen in high-purity beryllium has been established. A modified micro-Kjeldahl still was employed. Nitrogen contents less than 10 ppm can be accurately determined. Three batches of beryllium weighing roughly 5 pounds each have been prepared. Each batch was attritioned, sized and blended to provide a homogeneous material for analytical standards. These standards, in the form of coarse chips, have the following carbon and nitrogen contents for the 3 standards in parts per million, respectively: carbon, 25, 101, and 120 and nitrogen, 11, 55,
Periodic Audio Beryllium In-Ear Headphones OverviewThe Periodic Audio Beryllium In-Ear Headphones are the new flagship in-ear monitors from Periodi...
Read chapter 5 Assessment of Other Health End Points: Beryllium is an important metal that is used in a number of industries-including the defense, aer...
Read chapter Front Matter: Beryllium is an important metal that is used in a number of industries-including the defense, aerospace, automotive, medical...
Los Alamos National Laboratory announced Wednesday it is notifying nearly 2,000 current and former employees and visitors that they may have been exposed to beryllium in the lab and may be at risk of disease.
On January 9, 2017, OSHA published a final rule amending its standards for occupational exposure to beryllium and beryllium compounds. United States Employment and HR Arnold & Porter 26 Jan 2017
The question of whether the federal government has been at fault for the deaths and injuries of American beryllium workers will be the subject of a formal investigation by the General Accounting Office, the investigative arm of Congress.. The order to GAO to study the hazards of beryllium, a metal used by the Department of Defense and the Department of Energy because of its light weight and strength in the manufacture of weapons, came from a bipartisan group of eight members of Congress.. Led by Sen. Mike DeWine (R., O.), the ad hoc coalition includes Sens. John McCain (R., Ariz.) and Robert Bennett (R., Utah); and Reps. Marcy Kaptur (D., Toledo), Chris Shays (R., Conn.), Jim Kolbe (R., Ariz.), Tim Holden (D., Pa.), and Paul Kanjorski (D., Pa.).. Mr. DeWine began the call for a GAO investigation in April and has since been organizing and collecting support from colleagues. He said his actions were sparked by a series in The Blade that detailed a decades-long pattern of the U.S. government ...
Beryllium Copper - This high strength (after heat treatment) copper alloy can contain 0.5 to 3% beryllium and sometimes other alloying elements. It has excellent metal working, forming and machining characteristics, is also non-magnetic and non ...
Beryllium coatings with varying thicknesses and columnar grain sizes were deposited by low temperature magnetron sputtering and wet chemically etched to enhance diffuse absorption of light. After etching these coatings exhibited a matte black surface finish and low specular reflectance (below 2%) in the IR up to a critical wavelength dependent upon the original grain size of the coating. Extremely thick coatings (350 µm) with original grain sizes of 10 to 12 µm were produced which exhibited specular reflectances below 0.5% up to 50 µm wavelength and a Lambertian BRDF at 10.6 µm averaging 4.3x10-3 ster-1. Scanning electron micrographs are presented for etched and unetched beryllium coatings which showed the etching process produces roughness and porosity over several size scales simultaneously with the maximum size scale limited by the initial coating grain size and thickness. This technique for producing diffuse absorbing baffle materials has great versatility in choice of coating material and
With an atomic number of 4, beryllium has four electrons: two electron shells surround the atoms nucleus and two electrons in each shell. Beryllium is a rigid metal with an atomic mass of 9.0122. It...
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The extraction of beryllium has been carried out in the presence of butyric acid. Of the solvents tried, viz., ether, benzene, chloroform, amyl acetate, ethyl acetate and carbon tetrachloride, chloroform is found to be the best, ethyl acetate being the next. 30.7 mg of BeO in solution as chloride is raised to a pH of 9.3 to 9.5 to which 10-15 ml of butyric acid is added. Four extractions with chloroform extract 99% of beryllium. ...
Methods Quantitative area- and breathing-zone-based exposure measurements of airborne beryllium were made between 1953 and 2006 and used by plant personnel to estimate daily weighted average (DWA) exposure concentrations for sampled departments and operations. These DWA measurements were used to create a JEM with 18 exposure metrics, which was linked to the plant cohort consisting of 18 568 unique job, department and year combinations. The exposure metrics ranged from quantitative metrics (annual arithmetic/geometric average DWA exposures, maximum DWA and peak exposures) to descriptive qualitative metrics (chemical beryllium species and physical form) to qualitative assignment of exposure to other risk factors (yes/no). Twelve collapsed job titles with long-term consistent industrial hygiene samples were evaluated using regression analysis for time trends in DWA estimates. ...
On May 12, 2018, OSHA will begin to enforce a new rule on beryllium exposure in all forms, compounds, and mixtures in general, construction, and shipyard industries, prompting employers to take further responsibility to protect worker health from beryllium-related diseases.
Ending decades of denial and inaction, the federal government has issued a tough new exposure standard for people who work with the toxic metal beryllium.
ESPI High Purity Metal Specialists since 1950 with a company mission to provide a reliable resource for researchers high purity metals, metal compounds and metal alloys for all major universities, international and domestic manufacturing companies and corporate R&D laboratories worldwide, as well as most U.S. government research laboratories. Also manufacturer of DeContam®, an aggressive water based, non-hazardous cleansing agent specifically formulated for the electronic, aerospace and nuclear industries.
LORAIN -- A city councilwoman who fought for more than a year to ban a controversial substance within city limits said she now can rest easier. A representative from Brush Wellman Inc. signed a voluntary agreement with the city on Wednesday, stating that the companys bronze engineering plant in the Lorain would not produce, store or manufacture beryllium.. Beryllium, a compound used as an alloy with other metals in the defense, electronics and automotive industry, has been known to cause chronic and fatal lung disease if its dust is inhaled during its manufacturing process.. State and federal laws regulate the production of beryllium. But the compound earned a reputation locally at the former Brush Beryllium plant on West First Street in Lorain during the 1930s and 40s. Several workers there and residents living near the plant at the time became ill and died, according to a study completed in 1944.. City Councilwoman Kathy Tavenner, D-at large, had fought for the past 15 months to get Council ...
Beryllium copper springs are cold rolled and may be mill hardened before fabrication. Good corrosion resistance and electrical conductivity.
Products by element - Beryllium, include metal, alloy, compounds and fabrication products like sputtering targets etc. from ALB Materials Inc. - Page Total 1 Page 5 Records
This invention recognizes the hazards of beryllium and beryllium oxide in automotive applications and offers alternative material solutions. In particular, commercial electrochromic mirrors use beryllium comprising alloys for busbars and may also use beryllium oxide for the electronics used to power and control these mirrors. Further, this can be combined by reducing other known hazards such as mercury, cadmium, lead and antimony compounds.
QUEBEC CITY, QUEBEC--(Marketwire - March 31, 2010) - Nemaska Exploration Inc. («Nemaska» or «the Corporation») (TSX VENTURE:NMX) is pleased to announce that the most recent results from its current drill program on its lithium/beryllium (Whabouchi project, 100 % owned) continues to prove the high-grade, impressive width and continuity of the mineralized zone. Nemaska has received an additional 1,057 results from 15 holes. The latest results include 52.3 m at 1.85% Li2O, 165 ppm Be and 1579 ppm Rb and 22.8 m at 1.91 % Li2O, 130 ppm Be and 1503 ppm Rb.. «I am very pleased with the grade and width of our drill results to date which favourably compare to any other spodumene bearing pegmatite project currently in development around the world», commented Mr. Guy Bourassa, President and CEO. «The current drilling should be completed by mid-April, allowing us to finalize the resource calculation presently underway. I am also pleased to see that the Be and Rb grades remain constant throughout the ...
Beryllium dating is used to estimate the time a rock has been exposed on the surface of the Earth, as well as erosion and sedimentation rates.. Beryllium-10 is another cosmogenic nuclide. Like carbon-14, most of it is formed in the earths upper atmosphere. After formation, beryllium-10 binds to atmospheric dust particles or dissolves in atmospheric water vapor. It is transported to earth surface in rain so consequently it has a much shorter atmospheric residence time than carbon-14. It accumulates on the earths surface and depending upon the sedimentation regime in the local environment, it can be used to date surface accumulation rates, surface erosion rates, or for dating layers within ice cores. Its half-life is 1.39 million years.. Vanishingly small amounts of beryllium-10, carbon-14 and aluminum-26 are also created at the earths surface. The creation occurs within minerals the upper meter of rocks exposed directly to the sky. If rocks are undisturbed for millennia, differences in the ...
Unfortunately no cure has been found yet; but treatment and management of chronic beryllium disease can slow down the progression of this disease.
Information on the respiratory infections beryllium sensitization and chronic beryllium disease (CBD) and their symptoms, causes, diagnosis, and treatment.
Chronic beryllium disease (CBD) can be caused when one is exposed to fumes, dust, powder containing beryllium and has an allergic reaction. Most people ...
Click to launch & play an online audio visual presentation by Prof. Lee Newman on Genetic susceptibility in granulomatous disorders: chronic beryllium disease and sarcoidosis, part of a collection of multimedia lectures.
In seven patients with chronic beryllium disease (Be) the Be lymphocyte transformation test was positive in 100%, independent of steroid therapy, and was reproducible. The Be macrophage migration inhibition test was only positive in four of seven patients (57%) not on steroids, and was not reproducible. In 72 potentially exposed healthy beryllium workers the lymphocyte transformation test was negative in all subjects. The macrophage test was positive in four of 78 and again the results were not reproducible. The workers with positive results showed no differences in age, type or duration of employment from those with negative results and showed no evidence of disease. In addition, the macrophage test was positive in two of 45 non-exposed control subjects. We also confirmed the above advantages of the lymphocyte transformation technique by using tuberculin antigen (PPD). The PPD lymphocyte transformation test gave positive results in approximately 60% of healthy beryllium workers, but the PPD ...
Inhalation of beryllium (Be) has been associated with 2 pulmonary syndromes, which are an acute chemical pneumonitis and a granulomatous lung disease known as chronic beryllium disease (CBD), or berylliosis. In acute beryllium disease, the metal acts as a direct chemical irritant, causing a nonspecific inflammatory reaction (acute chemical p...
Inhalation of beryllium (Be) has been associated with 2 pulmonary syndromes, which are an acute chemical pneumonitis and a granulomatous lung disease known as chronic beryllium disease (CBD), or berylliosis. In acute beryllium disease, the metal acts as a direct chemical irritant, causing a nonspecific inflammatory reaction (acute chemical p...
Sigma-Aldrich offers abstracts and full-text articles by [Gina M Clayton, Yang Wang, Frances Crawford, Andrey Novikov, Brian T Wimberly, Jeffrey S Kieft, Michael T Falta, Natalie A Bowerman, Philippa Marrack, Andrew P Fontenot, Shaodong Dai, John W Kappler].
Federal Register Volume 83, Number 88 (Monday, May 7, 2018)] [Rules and Regulations] [Pages 19936-19949] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2018-09306] ======================================================================= ----------------------------------------------------------------------- DEPARTMENT OF LABOR Occupational Safety and Health Administration 29 CFR Part 1910 [Docket No. OSHA-2018-0003] RIN 1218-AB76 Revising the Beryllium Standard for General Industry AGENCY: Occupational Safety and Health Administration (OSHA), Department of Labor. ACTION: Direct final rule; request for comment. ----------------------------------------------------------------------- SUMMARY: On January 9, 2017, the Occupational Safety and Health Administration (OSHA) issued a final rule adopting a comprehensive general industry standard for exposure to beryllium and beryllium compounds. In this Direct Final Rule (DFR), OSHA is adopting a number of ...
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On December 12, 2017, Pennsylvanias Environmental Quality Board (EQB) unanimously approved a final-omitted rulemaking to substantially increase the Act 2 cleanup standards for beryllium, cadmium, and aldrin. The Act 2 cleanup standards are risk-based, meaning they are calculated according to the methods described in 25 Pa. Code Chapter 250 using the best-available toxicological data to be protective of human health under a variety of exposure scenarios. The standards must be periodically revised as newer and more accurate toxicological information becomes available, and the last such revision occurred in August 2016.. This currently proposed revision is intended to correct errors that were discovered in the 2016 cleanup standards for three substances: aldrin, beryllium, and cadmium. The original and corrected cleanup standards are presented in the table below.. ...
Beryllium is used mostly for military applications,[55] but there are other uses of beryllium, as well. In electronics, beryllium is used as a p-type dopant in some semiconductors,[56] and beryllium oxide is used as a high-strength electrical insulator and heat conductor.[57] Due to its light weight and other properties, beryllium is also used in mechanics when stiffness, light weight, and dimensional stability are required at wide temperature ranges.[58][59] Magnesium has many uses. It offers advantages over other materials such as aluminium, although this usage has fallen out of favor due to magnesiums flammability.[60] Magnesium is also often alloyed with aluminium or zinc to form materials with more desirable properties than any pure metal.[61] Magnesium has many other uses in industrial applications, such as having a role in the production of iron and steel, and the production of titanium.[62] Calcium also has many uses. One of its uses is as a reducing agent in the separation of other ...
A white powder; hexagonal; BeO. Used in the preparation of beryllium compounds and in ceramics and refractories. Melting point, 2,570 degrees C; and sp gr, 3.02. Bodies high in BeO have extremely high thermal conductivity (in the range of metals) and also possess high mechanical strength. Used in nuclear reactors because of its refractoriness, high thermal conductivity, and ability to act as a moderator for fast neutrons, reducing them to thermal speeds. Beryllia ceramics are used for electronic components and for crucibles for melting uranium and thorium. Syn: bromellite Source: Dictionary of Mining, Mineral, and Related Terms
Description: Alloy, or metallic composition which additionally contains at least one of the metals beryllium, magnesium, calcium, strontium, or barium ...
TY - JOUR. T1 - Beryllium analyses by secondary ion mass spectrometry. AU - Hervig, Richard. PY - 2002. Y1 - 2002. UR - http://www.scopus.com/inward/record.url?scp=33846351986&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=33846351986&partnerID=8YFLogxK. M3 - Article. AN - SCOPUS:33846351986. VL - 50. JO - Reviews in Mineralogy and Geochemistry. JF - Reviews in Mineralogy and Geochemistry. SN - 1529-6466. ER - ...
Page contains details about beryllium zinc oxide nanorods . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
The LPP Fusion research team is still working with the tungsten electrodes but they know the beryllium electrodes will be needed soon. Tungsten is being used
Compare Beryllium vs Silicon of the Periodic Table on all their Facts, Electronic Configuration, Chemical, Physical, Atomic properties. Our Periodic Element comparison tool allows you to compare Periodic Elements properties side by side for all 118 elements | SchoolMyKids Interactive Dynamic Periodic Table, Periodic Table Element Comparison tool, Element Property trends
Luciano Jacques Moraes; Beryllium minerals in Brazil. Economic Geology ; 28 (3): 289-292. doi: https://doi.org/10.2113/gsecongeo.28.3.289. Download citation file:. ...
Typically, we like to end the annual The Year in U.S. Occupational Health & Safety on an uplifting note. But this time around - to be honest - that was a hard sell. Take a quick look through the 2017 yearbook and youll quickly glean that worker health and safety is very much at risk under the new administration and from lawmakers in the states. From the attempted rollback of a new federal beryllium exposure standard to state efforts to weaken workers compensation systems, the view from 2017 does not seem terribly promising. On the other hand, the fight for workers rights has never… ...
Beso Beach provides the kind of beach bar vibes most people dream of when planning a Mediterranean escape, with a gentle breeze and laidback lounge music that picks up the pace as the sun drops into the ocean on her nightly descent. The palm lined roof, natural materials and weathered feel lends a rustic charm to the place, with stunning sunset views on the A-lists favourite beach, Illetes.. The chefs at Beso Beach offer the best of Mediterranean and Basque cuisine that has guests licking their lips in delight, safe in the knowledge there are no additives or sweeteners; simply the best food and raw flavours on the island. Carles Abellan is the Catalan cook and visionary who started working at El Bulli for 15 days and stayed for 15 years, among other notable positions. After 6pm you can try Yango Urban Foods on the beach - some of his taste sensations include international style hot dogs with unique flavours, before the a la carte menu returns for dinner.. ...
To study the immunologic function of bursin, we analyzed the effects of anti-bursin monoclonal antibody (mAb) on the immunosuppression in ducks (Cherry Valley duck) by injecting various doses of the anti-bursin mAb into 13-d duck embryos. After hatch, cell-mediated immune activity and humoral responses were studied using lymphocyte proliferation test, tube agglutination test, and indirect enzyme-linked immuno-sorbent assay to detect anti-Escherichia coli antibodies and antibodies to Riemerella anatipester, respectively. Simultaneously, relative weights (BW-adjusted) of bursa of Fabricius (BF), spleen, and thymus were determined. Additionally, the morphology of BF, spleen, and thymus was examined at various ages using conventional histology. Follicle morphology of BF was analyzed by image analysis. The results indicated that anti-bursin mAb markedly decreased duck lymphocyte proliferation, the antibody-producing ability to bacteria, as well as the relative BF weight. Moreover, the anti-bursin mAb ...
Some new tests have been introduced, unfortunately there are no published studies demonstating their validity. One test is called an immune tolerance test. It measures T cell proliferation after exposure to select Lyme antigens. There exist very few studies regarding such lymphocyte proliferation tests for diagnosing Lyme. Oddly, the background paper published by the manufacturer, describing the underpinnings of this technology, cites an old Wormser study in the foot notes. The Wormser study using somewhat different methods concluded the test was insensitive but specific ...
Today, Tuesday , May 17, 2016, the Rocky Flats Downwinders launched their health survey for people who reside downwind of Rocky Flats and may have health problems due to exposure to plutonium and other toxins released from Rocky Flats. See the following Denver Post article: http://www.thedenverchannel.com/lifestyle/health/residents-who-lived-near-rocky-flats-from-1952-and-1992-to-be-surveyed-about-health
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The Occupational Safety and Health Administration (OSHA) proposes to amend its existing exposure limits for occupational exposure in general industry…
Researchers at International Business Machines Corp. have developed a new approach for simulating molecules on a quantum computer.. The breakthrough, outlined in a research paper to be published in the scientific journal Nature Thursday, uses a technique that could eventually allow quantum computers to solve difficult problems in chemistry and electro-magnetism that cannot be solved by even the most powerful supercomputers today.. In the experiments described in the paper, IBM researchers used a quantum computer to derive the lowest energy state of a molecule of beryllium hydride. Knowing the energy state of a molecule is a key to understanding chemical reactions.. In the case of beryllium hydride, a supercomputer can solve this problem, but the standard techniques for doing so cannot be used for large molecules because the number of variables exceeds the computational power of even these machines.. The IBM researchers created a new algorithm specifically designed to take advantage of the ...
Buy AVX INTERCONNECT 009155003201006 online at Newark element14. Buy your 009155003201006 from an authorized AVX INTERCONNECT distributor.
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SPEAKER INDEX CONTENTS INSERTS ACCEPTANCE 143 ACTION ON CLAIM 80 ACTION ON CLAIMS 18 ACTION ON CLIAM 48 ADDITIONAL CRITERIA 94 136 181 223 ADDITIONAL INFORMATION 168 226 ADDITIONAL INFORMATION AND DOCUMENTATION 81 ADMINISTRATIVE APPEALS PROCEDURE AND JUDICIAL REVIE 51 82 ADMINISTRATIVE COSTS NOT PAID FROM FUND 18 ADMINISTRATIVE LAW JUDGE 127 215 ADMINISTRATIVE PROCEEDINGS 147 AMOUNT 108 195 APOLOGY 13 APPLICABILITY OF OTHER FEDERAL LAWS 164 APPLICABLE LAW 148 APPLICATION 102 110 126 189 197 213 APPLICATION OF SECTION 133 221 APPLICATION OF TITLE 107 194 APPLICATION TO EXISTING ASBESTOS TRUSTS 164 ARBITRARY OR CAPRICIOUS CONDUCT 108 195 ASBESTOS CLAIM 156 ASBESTOS COMPENSATION FUND 138 ASBESTOS TRUST 157 AUTHORITY 45 78 118 154 206 AUTHORITY OF BENEFITS REVIEW BOARD 106 192 AUTHORIZATION OF APPROPRIATIONS 14 45 77 AVAILABILITY OF THE FUND 14 AVERAGE ANNUAL EARNINGS 98 122 185 209 AWARD OF FEES 132 219 BAIRD 74 BERKLEY 254 BERYLLIUM INDUSTRY SITE 20 BERYLLIUM VENDOR 54 177 BIGGERT 21 BOARD ...
One of the first identified age-associated functional changes in immune response was decreased DTH responses. In fact the DTH response is an example of a T.h response mediated primarily through th-1-type cytokines although many events are required before proliferation, assessment of lymphocyte proliferation often has been used as an indicator of ...
Learn more about Berylliosis at Reston Hospital Center DefinitionCausesRisk FactorsSymptomsDiagnosisTreatmentPreventionrevision ...
Learn more about Berylliosis at Reston Hospital Center DefinitionCausesRisk FactorsSymptomsDiagnosisTreatmentPreventionrevision ...
Includes alphabet are there any alternatives to plenty fish books, counting books, and books teaching concepts. If the internet settings are not set to medium level than the cookies will be blocked. The rinsing stage contaminates where to meet international singles in the usa the cleaning fluid with residual liquid and the cleaning fluid becomes more contaminated each time the cloth or sponge is rinsed. The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some people called berylliosis. Exquisitely prepared breakfast, with vegan and gluten free options. Where to meet black singles in canada free to further validate these results, we treated the cells with laser microirradiation. Thomas married sarah browne born clarke in, at age 24 at marriage place. Split shot rig this is about as basic as you can get ...
We are looking to build at either Candelas or Leyden Rock. I am concerned regarding Rocky Flats and 470. Any thoughts on future resale in either area? Find answers to this and many other questions on Trulia Voices, a community for you to find and share local information. Get answers, and share your insights and experience.
Learn Novo Nordisks manufacturing facilities in Clayton & Durham, NC, including our filling and finishing facility (DFP) and our active pharmaceutical ingredient manufacturing facility (DAPI).
HANOI, VIETNAM, Aug 02, 2021 (News Direct via Comtex) -- --News Direct-- HANOI, VIETNAM - Media OutReach - 2 August 2021 - Supported by the Vietnamese Government and Health Ministry, Vingroup (hose:VIC) and Arcturus Therapeutics Holdings Inc. announced a contract regarding a collaboration to establish a manufacturing facility in Vietnam for the manufacture of Arcturus mRNA COVID-19 vaccine candidate for sales and use in Vietnam. With a planned capacity of up to 200 million doses per year, Vingroup is expected to produce its first batches of the COVID-19 vaccine in early 2022. /zigman2/quotes/202272083/composite ARCT -7.04% Arcturus Therapeutics is a leading clinical stage company focused on messenger RNA (mRNA) medicines - one of the most advanced medicinal technologies in the world. Under the terms of the arrangement, VinBioCare - a member of Vingroup - will, with consultation from Arcturus, build out a manufacturing facility in Vietnam; and Arcturus will provide to VinBioCare access to ...
Title page], pp. i-ii. Foreword, Norman, Lindsay D. pp. iii ff.. Acknowledgments, Schreck, Albert E. pp. v ff.. Contents, pp. vii-viii. Mining and quarrying trends in the metal and nonmetal industries, Cooper, Franklin D. pp. 1-26. Abrasive materials, Baskin, G. David pp. 27-41 ff.. Aluminum, Kurtz, Horace F.; Moore, Christine M. pp. 43-61 ff.. Antimony, Rowland, T. John, Jr.; Cammarota, V. A., Jr. pp. 63-70. Asbestos, Clifton, R. A. pp. 71-84. Barite, Morse, David E. pp. 85-94. Bauxite and alumina, Baumgardner, Luke H.; Hough, Ruth A. pp. 95-110. Beryllium, Petkof, Benjamin pp. 111-114. Bismuth, Carlin, James F., Jr.; Bascle, Robert J. pp. 115-118. Boron, Absalom, Sandra T. pp. 119-129 ff.. Bromine, Absalom, Sandra T. pp. 131-137 ff.. Cadmium, Lucas, John M. pp. 139-145 ff.. Calcium and calcium compounds, Pressler, J. W. pp. 147-151 ff.. Cement, Dikeou, James T. pp. 153-191 ff.. Chromium, Matthews, Norman A.; Morning, John L. pp. 193-205 ff.. Clays, Ampian, Sarkis G. pp. 207-247 ff.. Cobalt, ...
This specification covers a copper beryllium alloy in the form of bars and rods. These products have been used typically for parts requiring a combination of high strength, wear resistance, and corrosion resistance and where thermal conductivity, electrical conductivity, and low magnetic susceptibility may be important, but usage is not limited to such applications. ...
PURPOSE OF REVIEW: This study aims to summarize the current body of literature on the relationship between various toxic metals exposures (i.e., aluminum, antimony, arsenic, beryllium, cadmium, chromium, lead, manganese, and nickel) and autism spectrum disorder (ASD), with a focus on potential sex differences in these associations. RECENT FINDINGS: Sex differences in ASD diagnosis and mutagenic effects of toxic exposures indicate that sex differences may play a major part in the causal relationship of any potential associations seen; however, we were only able to find three studies that reported on sex differences in observed associations with toxic metals exposure and ASD ...
Multi-element Calibration Standard 3, Matrix per Volume: 5% HNO3 per 125 mL, Concentration of Element: 10mg/mL Silver, 10mg/mL Aluminium, 10mg/mL Arsenic, 10mg/mL Barium, 10mg/mL Beryllium, 10mg/mL Bismuth, 10mg/mL Calcium, 10mg/mL Cadmium, 10mg/mL Cobalt, 10mg/mL Chromium, 10mg/mL Cesium, 10mg/mL Copper, 10mg/mL Iron, 10mg/mL Gallium, 10mg/mL Mercury, 10mg/mL Indium, 10mg/mL Potassium, 10mg/mL Lithium, 10mg/mL Magnesium, 10mg/mL Manganese, 10mg/mL Sodium, 10mg/mL Nickel, 10mg/mL Lead, 10mg/mL Rubidium, 10mg/mL Selenium, 10mg/mL Strontium, 10mg/mL Thallium, 10mg/mL Vanadium, 10mg/mL Uranium, and 10mg/mL Zinc. Mercury is supplied as a separate solution due to incompatibility with other elements.
Sodium chloride is heavily used, so even relatively minor applications can consume massive quantities. In oil and gas exploration, salt is an important component of drilling fluids in well drilling. It is used to flocculate and increase the density of the drilling fluid to overcome high downwell gas pressures. Whenever a drill hits a salt formation, salt is added to the drilling fluid to saturate the solution and to minimize the dissolution within the salt stratum.[11] Salt is also used to increase the curing of concrete in cemented casings.[9]. In textiles and dyeing, salt is used as a brine rinse to separate organic contaminants, to promote salting out of dyestuff precipitates, and to blend with concentrated dyes to standardize them. One of its main roles is to provide the positive ion charge to promote the absorption of negatively charged ions of dyes.[9]. It is also used in processing aluminium, beryllium, copper, steel and vanadium. In the pulp and paper industry, salt is used to bleach ...
Sodium chloride is heavily used, so even relatively minor applications can consume massive quantities. In oil and gas exploration, salt is an important component of drilling fluids in well drilling. It is used to flocculate and increase the density of the drilling fluid to overcome high downwell gas pressures. Whenever a drill hits a salt formation, salt is added to the drilling fluid to saturate the solution in order to minimize the dissolution within the salt stratum.[8] Salt is also used to increase the curing of concrete in cemented casings.[9]. In textiles and dyeing, salt is used as a brine rinse to separate organic contaminants, to promote salting out of dyestuff precipitates, and to blend with concentrated dyes to standardize[clarification needed] them. One of its main roles is to provide the positive ion charge to promote the absorption of negatively charged ions of dyes.[9]. It is also used in processing aluminium, beryllium, copper, steel and vanadium. In the pulp and paper ...
And thats not all Trump has done in his first months in office to dismantle worker protections at the behest of big businesses. He has also delayed implementation of OSHAs newest chemical exposure limits - for silica dust and beryllium. These rules took decades to finalize and will save hundreds of lives a year once they are in effect. But every time they get delayed, workers are left in harms way for no good reason, increasing the chance theyll develop debilitating, often fatal diseases that will devastate their families. Not only is the fate of these rules unknown, new safeguards to address other hazards like heat stress, toxic chemicals, and workplace violence seem exceedingly unlikely from the Trump administration, putting even more lives in danger. Trump has proposed cutting the Department of Labors budget by 21 percent, making it practically impossible for OSHA to carry out its basic tasks like conducting inspections and citing employers for violating worker health and safety ...
Background: Dental technicians (DTs) are exposed to Beryllium (Be) and other substances capable of inducing lung disease. Heme oxygenase -1 (HO-1) play a protective antioxidant role in the lung. The guanine-thymidine (GT) n repeats in the HO-1 promoter determine HO-1 induction level. Short (GT) n repeats (n = ,25; S genotype) is considered as protective since HO-1 is induced more rapidly than in long (GT) n repeats (n = ≥25; L genotype).. Aims To evaluate the correlation of HO-1 polymorphisms to functional and exposure parameters in DTs and the protective role of HO-1 on Be Oxide (BeO) exposed A549 epithelial cells apoptosis.. Methods 65 DTs were followed-up for 2 years by questionnaires,induced sputum (IS) particles size distribution laser analysis (Dapi 2000 Donner Tech and Pulmonary Function Tests. HO-1 genotyping was done by PCR DNA sequencer (AB prism 310). A549 epithelial cell line was cultured with BeO and pretreated with Hemin and Znpp (for stimulation and inhibition of HO-1 ...
Lecture GuideCHM 110General Chemistry, CHM 110You will be responsible for learning the names and symbols of the following elements. Al Aluminum Sb Antimony Ar Argon As Arsenic Ba Barium Be Beryllium Bi Bismuth B Boron Br Bromine Cd Cadmium Cs Cesium Ca...
... azide, BeN6 is known and beryllium phosphide, Be3P2 has a similar structure to Be3N2. A number of beryllium borides ... Solutions of beryllium salts, such as beryllium sulfate and beryllium nitrate, are acidic because of hydrolysis of the [Be(H2O) ... A beryllium atom has the electronic configuration [He] 2s2. The predominant oxidation state of beryllium is +2; the beryllium ... Beryllium hydroxide created using either the sinter or melt method is then converted into beryllium fluoride or beryllium ...
... reacts slowly with water but is rapidly hydrolysed by acid such as hydrogen chloride to form beryllium ... Beryllium hydride (systematically named poly[beryllane(2)] and beryllium dihydride) is an inorganic compound with the chemical ... beryllium does not react with hydrogen. Instead, BeH2 is prepared from preformed beryllium(II) compounds. It was first ... BeH2 + 2 H2O → Be(OH)2 + 2 H2 BeH2 + 2 HCl → BeCl2 + 2 H2 Beryllium hydride reacts with trimethylamine, N(CH3)3 to form a ...
2 induces conversion to basic beryllium nitrate, which adopts a structure akin to that for basic berylium acetate. Unlike the ... Beryllium nitrate is an inorganic compound with the idealized chemical formula Be(NO3)2. The formula suggests a salt, but, as ... forms upon treatment of beryllium chloride with dinitrogen tetroxide: BeCl2 + 3 N2O4 → Be(NO3)2(N2O4) + 2 NOCl Upon heating, ... Beryllium compounds, Nitrates, All stub articles, Inorganic compound stubs). ...
Basic beryllium carbonate is a mixed salt, which can be prepared by the reaction of beryllium sulfate and ammonium carbonate, ... It should be handled carefully since several related beryllium compounds are known carcinogens. No purely beryllium carbonate ... Beryllium carbonate is a chemical compound with the chemical formula BeCO3. There are three forms reported, anhydrous, a ... "Beryllium carbonate". NIOSH Pocket Guide to Chemical Hazards. "#0054". National Institute for Occupational Safety and Health ( ...
... (10Be) is a radioactive isotope of beryllium. It is formed in the Earth's atmosphere mainly by cosmic ray ... Beryllium-10 has a half-life of 1.39 × 106 years, and decays by beta decay to stable boron-10 with a maximum energy of 556.2 ... As the precipitation quickly becomes more alkaline, beryllium drops out of solution. Cosmogenic 10Be thereby accumulates at the ... 10Be Because beryllium tends to exist in solutions below about pH 5.5 (and rainwater above many industrialized areas can have a ...
... is an inorganic compound, a salt of beryllium metal and oxalic acid with the chemical formula C 2BeO 4. It ... The compound is used to prepare ultra-pure beryllium oxide by thermal decomposition. The action of oxalic acid on beryllium ... "BERYLLIUM OXALATE". chemicalbook.com. Retrieved 15 June 2021. "beryllium,oxalate". chemsrc.com. Retrieved 15 June 2021. ... Moore, Raymond E. (1960). Purification of Beryllium Compounds: A Literature Survey. Oak Ridge National Laboratory. p. 6. ...
In beryllium monohydride, beryllium has a valency of one, and hydrogen has a valency of one. BeH has only 5 electrons and is ... Beryllium monohydride (BeH) is an example of a molecule with a half-bond order according to molecular orbital theory. It is a ... Thomas J. Tague Jr., Lester Andrews (1993). "Reactions of beryllium atoms with hydrogen. Matrix infrared spectra of novel ... Dattani, Nikesh S. (2015). "Beryllium monohydride (BeH): Where we are now, after 86 years of spectroscopy". Journal of ...
ISBN 978-0-309-10128-8. IARC Monograph "Beryllium and Beryllium Compounds" National Pollutant Inventory: Beryllium and ... Beryllium compounds are highly toxic. The increased toxicity of beryllium in the presence of fluoride has been noted as early ... Gaseous beryllium fluoride adopts a linear structure, with a Be-F distance of 143 pm. BeF2 reaches a vapor pressure of 10 Pa at ... Thus, ADP and beryllium fluoride together tend to bind to ATP sites and inhibit protein action, making it possible to ...
CH4 Beryllium iodide reacts with fluorine giving beryllium fluoride and fluorides of iodine, with chlorine giving beryllium ... Beryllium iodide can be used in the preparation of high-purity beryllium by the decomposition of the compound on a hot tungsten ... Beryllium iodide can be prepared by reacting beryllium metal with elemental iodine at temperatures of 500 °C to 700 °C: Be + I2 ... BeI2 Beryllium iodide is also formed when beryllium carbide reacts with hydrogen iodide in the gas phase: Be2C + 4 HI → 2 BeI2 ...
... is formed by the reaction of beryllium hydride with diborane in an ether solution. The purest beryllium ... Beryllium borohydride is an inorganic compound with the chemical formula Be(BH4)2. The crystal structure is made up of a ... "Crystal structure of beryllium borohydride". Inorganic Chemistry. 11 (4): 820-823. doi:10.1021/ic50110a033. Greenwood, Norman N ... Beryllium compounds, Borohydrides, All stub articles, Inorganic compound stubs). ...
It takes two forms: Acute beryllium poisoning, usually as a result of exposure to soluble beryllium salts Chronic beryllium ... Beryllium poisoning is poisoning by the toxic effects of beryllium, or more usually its compounds. ... Beryllium, Toxic effects of metals, Articles with short description, Short description with empty Wikidata description, All set ... disease (CBD) or berylliosis, usually as a result of long-term exposure to beryllium oxide usually caused by inhalation. This ...
... can be prepared by calcining (roasting) beryllium carbonate, dehydrating beryllium hydroxide, or igniting ... Beryllium Oxide MSDS from American Beryllia IARC Monograph "Beryllium and Beryllium Compounds" International Chemical Safety ... Sintered beryllium oxide is a very stable ceramic. Beryllium oxide is used in rocket engines and as a transparent protective ... "Beryllium and Beryllium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry 2005, Wiley-VCH, Weinheim. doi:10.1002/ ...
"Beryllium and Beryllium Compounds" IPCS Health & Safety Guide 44 IPCS Environmental Health Criteria 106: Beryllium IPCS CICAD ... Beryllium sulfate may be prepared by treating an aqueous solution of many beryllium salts with sulfuric acid, followed by ... The existence of the tetrahedral [Be(OH2)4]2+ ion in aqueous solutions of beryllium nitrate and beryllium chloride has been ... A mixture of beryllium and radium sulfate was used as the neutron source in the discovery of nuclear fission. Weast, Robert C ...
Copper and compounds fact sheet Copper beryllium and nickel beryllium datasheets Copper beryllium and nickel beryllium WIRE ... Beryllium copper (BeCu), also known as copper beryllium (CuBe), beryllium bronze, and spring copper, is a copper alloy with 0.5 ... High-strength beryllium copper alloys contain as much as 2.7% beryllium (cast), or 1.6-2% beryllium with about 0.3% cobalt ( ... Copper beryllium alloy containing less than 2.5% Beryllium (in Copper) is not designated as a carcinogen. The current OSHA PELs ...
... , Be(N3)2, is an inorganic compound. It is a beryllium salt of hydrazoic acid HN3. Beryllium azide has been ... Wiberg, E.; Horst, M. (1954). "Beryllium azide, Be(N3)2". Zeitschrift für Naturforschung B. 9: 502. NIOSH Pocket Guide to ... 2 CH4 IR and Raman spectra suggest that beryllium azide consists of infinite chains, with tetrahedrally coordinated Be2+ ions ... "Synthesis and spectroscopic characterization of beryllium azide and two derivatives". Main Group Metal Chemistry. 22 (6): 357- ...
... (BeTe) is a chemical compound of beryllium and tellurium. It is a crystalline solid with the lattice ... Beryllium compounds, Tellurides, II-VI semiconductors, Zincblende crystal structure, All stub articles, Inorganic compound ...
... is prepared by heating the elements beryllium and carbon at elevated temperatures (above 950°C). It also may ... Beryllium carbide, or Be2C, is a metal carbide. Similar to diamond, it is a very hard compound. It is used in nuclear reactors ... 0054". National Institute for Occupational Safety and Health (NIOSH). Beryllium Carbide Info Archived 2011-09-29 at the Wayback ... be prepared by reduction of beryllium oxide with carbon at a temperature above 1,500°C: 2BeO + 3C → Be2C + 2CO Beryllium ...
... , Be3N2, is a nitride of beryllium. It can be prepared from the elements at high temperature (1100-1500 °C); ... unlike beryllium azide or BeN6, it decomposes in vacuum into beryllium and nitrogen. It is readily hydrolysed forming beryllium ... Beryllium nitride is prepared by heating beryllium metal powder with dry nitrogen in an oxygen-free atmosphere in temperatures ... Beryllium nitride reacts with mineral acids producing ammonia and the corresponding salts of the acids: Be3N2 + 6 HCl → 3 BeCl2 ...
... two helium-4 nuclei may collide and fuse into a single beryllium-8 nucleus. Beryllium-8 has an extremely short half-life (8.19× ... Beryllium-8 is unbound with respect to alpha emission by 92 keV; it is a resonance having a width of 6 eV. The nucleus of ... As beryllium-8 is unbound by only 92 keV, it is theorized that very small changes in nuclear potential and the fine tuning of ... Beryllium-8 (8Be, Be-8) is a radionuclide with 4 neutrons and 4 protons. It is an unbound resonance and nominally an isotope of ...
This has the same structure as zinc hydroxide, Zn(OH)2, with tetrahedral beryllium centers. Beryllium hydroxide is difficult to ... For example, with sulfuric acid, H2SO4, beryllium sulfate is formed: Be(OH)2 + H2SO4 → BeSO4 + 2H2O Beryllium hydroxide ... Beryllium hydroxide, Be(OH)2, is an amphoteric hydroxide, dissolving in both acids and alkalis. Industrially, it is produced as ... The natural pure beryllium hydroxide is rare (in form of the mineral behoite, orthorhombic) or very rare (clinobehoite, ...
... powders can be prepared by the reaction of sulfur and beryllium in a hydrogen atmosphere by heating the ... The crystal structures of beryllium oxide and beryllium sulfide]. Zeitschrift für Physikalische Chemie (in German). 119U (1): ... Beryllium sulfide (BeS) is an ionic compound from the sulfide group with the formula BeS. It is a white solid with a sphalerite ... Beryllium Sulfide, BeS". Analytical Chemistry. 28 (5): 915. doi:10.1021/ac60113a045. NIOSH Pocket Guide to Chemical Hazards. "# ...
BeBr2 Beryllium bromide is also formed when treating beryllium oxide with hydrobromic acid: BeO + 2 HBr → BeBr2 + H2O It ... Beryllium bromide is the chemical compound with the formula BeBr2. It is very hygroscopic and dissolves well in water. The ... Beryllium compounds are toxic if inhaled or ingested. Perry, Dale L.; Phillips, Sidney L. (1995), Handbook of Inorganic ... It can be prepared by reacting beryllium metal with elemental bromine at temperatures of 500 °C to 700 °C: Be + Br2 → ...
Berylliosis is associated with exposure to beryllium in the beryllium mining, aerospace and manufacturing industries. Chronic ... Exposure to beryllium is associated with an increased risk for cancer [cite]. Granuloma List of cutaneous conditions James, ... Beryllium granulomas is a skin condition caused by granulomatous inflammation of the skin which may follow accident laceration ... Because of this, beryllium associated granulomas are occasionally responsive to steroids and other immunosuppressants [cite]. ...
... is used as a raw material for the electrolysis of beryllium, and as a catalyst for Friedel-Crafts reactions ... Its properties are similar to those of aluminium chloride, due to beryllium's diagonal relationship with aluminium. Beryllium ... Beryllium chloride is an inorganic compound with the formula BeCl2. It is a colourless, hygroscopic solid that dissolves well ... Beryllium chloride dissolves to give tetrahedral [Be(OH2)4]2+ ion in aqueous solutions as confirmed by vibrational spectroscopy ...
... , Beryllium, Lists of isotopes by element, Pages that use a deprecated format of the chem tags). ... Beryllium (4Be) has 11 known isotopes and 3 known isomers, but only one of these isotopes (9 Be ) is stable and a primordial ... Beryllium is prevented from having a stable isotope with 4 protons and 6 neutrons by the very large mismatch in neutron-proton ... Other possible beryllium isotopes have even more severe mismatches in neutron and proton number, and thus are even less stable ...
... is useful to extract and purify beryllium rich fractions for many purposes. Basic beryllium acetate single crystals can easily ... Basic beryllium acetate has a tetrahedral Be4O6+ core with acetates (CH3CO2−) spanning each of the pairs of Be2+ centres. It ... It can be prepared by treating basic beryllium carbonate with hot acetic acid. 2 Be 2CO 3(OH) 2 + 6 AcOH → Be 4O(AcO) 6 + 5 H ... Basic beryllium acetate is the chemical compound with the formula Be4O(O2CCH3)6. This compound adopts a distinctive structure, ...
Report on Carcinogens, Thirteenth Edition Beryllium and Beryllium Compounds Lang, Leslie (June-July 1994). "Beryllium: A ... Acute beryllium disease was first reported in Europe in 1933 and in the United States in 1943. OSHA Beryllium Health Effects ... Acute beryllium poisoning is acute chemical pneumonitis resulting from the toxic effect of beryllium in its elemental form or ... Beryllium dust or powder can irritate the eyes. Acute beryllium poisoning is an occupational disease. Relevant occupations are ...
This page provides supplementary chemical data on beryllium oxide. Beryllium Oxide MSDS from American Beryllia This box: view ...
Collantine, Keith (8 February 2007). "Banned! - Beryllium". F1 Fanatic. Retrieved 11 July 2011. "www.itv-f1.com/news_article. ... use of beryllium alloys in chassis or engine construction banned. Fully-automatic transmissions and launch control are also ...
"Beryllium". Royal Society of Chemistry. Retrieved 1 January 2020. "Yttrium". Royal Society of Chemistry. Retrieved 1 January ... In 1828 Wöhler was the first to isolate the element beryllium in pure metallic form (also independently isolated by Antoine ... He achieved these preparations by heating the anhydrous chlorides of beryllium and yttrium with potassium metal. In 1850, ... being the first to isolate the chemical elements beryllium and yttrium in pure metallic form. He was the first to prepare ...
Printer-friendly version of the Patient Education Sheet on Beryllium Toxicity. ... Beryllium sensitization. The body develops hypersensitivity to beryllium.. No symptoms, but the body identifies beryllium as ... What Is Beryllium?. Beryllium is a mineral found in nature. It is extracted from mineral deposits and used for many commercial ... How Can Beryllium Affect My Health?. Exposure to beryllium can affect the lungs and/or skin. However, not everyone will develop ...
Beryllium is a lightweight metal with unique mechanical and thermal properties that make it ideal for use in many applications ... Production of beryllium oxide began in the late 1950s.. Four NIOSH Divisions have beryllium-related projects:. beryllium- ... Beryllium and beryllium-containing alloys and compounds have been produced commercially in the US since the 1940s. ... Beryllium is a lightweight metal with unique mechanical and thermal properties that make it ideal for use in many applications ...
... of all people occupationally-exposed to beryllium in air become sensitive to beryllium and may develop chronic beryllium ... Beryllium has been found in at least 535 of the 1,613 National Priorities List sites identified by the Environmental Protection ... Lung damage has been observed in people exposed to high levels of beryllium in the air. About 1-15% ... People working or living near beryllium industries have the greatest potential for exposure to beryllium. ...
What is beryllium?A: Beryllium is a brittle, steel-gray metal found as a component of coal, oil, certain rock minerals, ... Q: What is beryllium?. A: Beryllium is a brittle, steel-gray metal found as a component of coal, oil, certain rock minerals, ... Q: How is beryllium released into the environment?. A: Beryllium dust enters the air from burning coal and oil, and eventually ... A: Beryllium can be measured in the urine and blood. However, the amount of beryllium in the blood or urine may not accurately ...
Beryllium. Find out what is in your tap water ... EWGs Tap Water Database Beryllium results for Marmarth, City ... Beryllium. Marmarth, City of. Beryllium is a toxic metal that is both naturally occurring and released into the environment ... The EWG Health Guideline of 1 ppb for beryllium was defined by the California Office of Environmental Health Hazard Assessment ... The legal limit for beryllium, established in 1992, was based on a toxicity study in laboratory animals published in 1970. This ...
2001)‎. Beryllium and beryllium compounds. World Health Organization. https://extranet.who.int/iris/restricted/handle/10665/ ...
Beryllium and Beryllium Compounds (as Be). NIOSH Publication 2005-149. Cincinnati, OH: NIOSH, 2005. ... Beryllium exposure has long been associated with an immune-mediated, granulomatous lung disease termed chronic beryllium ... Development of Beryllium Exposure Matrices for Workers in a Former Beryllium Manufacturing Plant. [Dissertation]. Cincinnati, ... Threshold Limit Value-Time-Weighted Average: Beryllium and Beryllium Compounds. Cincinnati: ACGIH, 2009:1-14. ...
Scope 1.1 This specification defines the physical and chemical requirements of nuclear-grade beryllium oxide (BeO) powder to be ... 1.1 This specification defines the physical and chemical requirements of nuclear-grade beryllium oxide (BeO) powder to be used ...
This WebElements periodic table page contains isotope data for the element beryllium ... Isotope abundances of beryllium. In the above, the most intense ion is set to 100% since this corresponds best to the output ... Beryllium - 4Be Your user agent does not support the HTML5 Audio element. 🔊 ... This table gives information about some radiosotopes of beryllium, their masses, their half-lives, their modes of decay, their ...
Definition of beryllium work area. Paragraph (b) of the beryllium standard published in January 2017 defined a beryllium work ... Dermal contact with beryllium means skin exposure to: (i) Soluble beryllium compounds containing beryllium in concentrations ... beryllium by weight, this DFR defines ``beryllium- contaminated or contaminated with beryllium and adds those terms to ... Contaminated with beryllium and beryllium- contaminated and ``Dermal contact with beryllium in alphabetical order in ...
... ... 2009)‎. Beryllium in drinking-water : background document for development of WHO guidelines for drinking-water quality. World ...
This topic contains 1 study abstract on Beryllium-induced Toxicity indicating that the following substance may be helpful: ... Diseases : Beryllium-induced Toxicity , Oxidative Stress. Pharmacological Actions : Antioxidants, Hepatoprotective, ... 2 Abstracts with Beryllium-induced Toxicity Research. Filter by Study Type. Animal Study. ... Beryllium-induced Toxicity is a Sub of the following Topic. *Metal Toxicity ...
Global Beryllium Market to Reach 459.7 Thousand Kilograms by 2027 In the changed post COVID-19 business landscape, the global ... market for Beryllium estimated - Market research report and industry analysis - 32281010 ... Proliferation of Recycled Beryllium. Scrap Recycling: The Viable Method for Beryllium Production. Rising Beryllium Prices to ... The World Market for Unwrought Beryllium, Beryllium Waste and Scrap, and Beryllium Powders: A 2022 Global Trade Perspective. ...
Beryllium(η5-2,4-cyclopentadien-1-yl)propynyl-. *Formula: C8H8Be ...
Chapter 1. Mineralogy, Petrology and Geochemistry of Beryllium: An Introduction and List of Beryllium Minerals by Edward S. ... Beryllium in Silicic Magmas and the Origin of Beryl-Bearing Pegmatites by David London and Joseph M. Evensen, p. 445 - 486 ... Chapter 2. Behavior of Beryllium During Solar System and Planetary Evolution: Evidence from Planetary Materials by Charles K. ... Non-pegmatitic Deposits of Beryllium: Mineralogy, Geology, Phase Equilibria and Origin by Mark D. Barton and Steven Young, p. ...
... beryllium sensitization (BeS), and HLA-DPB1 alleles with a glutamic acid residue at position 69 (E69). Results suggest that the ... Multiple epidemiologic studies demonstrate associations between chronic beryllium disease (CBD), ... We enrolled 502 BeS/CBD subjects and 653 beryllium-exposed controls from three beryllium industries who gave informed consent ... Epidemiology; Beryllium-compounds; Beryllium-disease; Sensitization; Glutamates; Acids; Risk-analysis; Risk-factors; Amino- ...
Posted in UncategorizedTagged Adding a Musculoskeletal Disorders column to the OSHA 300 log, Beryllium, Changing the ...
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Buy Copper/Beryllium (Cu98/Be2) foil 6.35 mm thickness x 38 mm x 51 mm - 100 mm x 100 mm sizes from Goodfellow.com. Choose from ...
Detailed decay information for the isotope beryllium-8 including decay chains and daughter products. ... Beryllium Pictures Page. Al. Si. P. S. Cl. Ar. K. Ca. Beryllium Technical Data. Sc. Ti. V. Cr. Mn. Fe. Co. Ni. Cu. Zn. Ga. Ge. ... Isotopes of Beryllium (click to see decay chain):. 5Be 6Be 7Be 8Be 9Be 10Be 11Be 12Be 13Be 14Be 15Be 16Be ... Beryllium Main Page. Black White Gray. B. C. N. O. F. Ne. ...
This is the complete unit that contains one of the beryllium spheres pictured above: Its a fabulous bit of machining, I just ...
Beryllium copper by Mangesh Borse - This information is usefull to those who work in Automotive Bodyshop. Kindly go through the ... Kindly go through the table below for differentiation between CuCrZr & Beryllium copper . You can add your comments or ...
Chronic beryllium disease disease/syndrome detailed information in Haz-Map database. ... Beryllium aluminate* *Beryllium* *Beryllium boride* *Beryllium bromide* *Beryllium carbide* *Beryllium carbonate* *Beryllium ... Beryllium nitride* *Beryllium oxalate* *Beryllium oxide* *Beryllium oxyfluoride* *Beryllium perchlorate* *Beryllium phosphate* ... Beryllium fluoride* *Beryllium hydride* *Beryllium hydroxide* *Beryllium nitrate* *Beryllium nitrate tetrahydrate* *Beryllium ...
The Obama administration is proposing new safety rules to limit workplace exposure to beryllium, a type of metal used in ... Workers who inhale beryllium dust or fumes can develop a debilitating, incurable disease called chronic beryllium disease and ... Most current workers exposed to beryllium work in foundry and smelting operations, beryllium oxide ceramics and composites ... Beryllium is also an essential component of nuclear weapons. Under a special program created by Congress in 2000, the Labor ...
A study of highly crystalline novel beryllium oxide film using atomic layer deposition. , Apr 02, 2020 ...
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The paper will describe the new technologies utilizing aluminum beryllium (AlBeMet®) for optical systems. Focusing on advances ... New technologies for optical systems utilizing aluminum beryllium Author(s): Thomas Parsonage ...
  • Production of beryllium oxide began in the late 1950s. (cdc.gov)
  • 1.1 This specification defines the physical and chemical requirements of nuclear-grade beryllium oxide (BeO) powder to be used in fabricating nuclear components. (astm.org)
  • Most current workers exposed to beryllium work in foundry and smelting operations, beryllium oxide ceramics and composites manufacturing, and dental lab work. (designworldonline.com)
  • Small, lightweight Beryllium Oxide (BeO) Optically Stimulated Luminescence (OSL) based dosimeter with wear periods ranging from one week to one year. (mirion.com)
  • The majority of current worker exposures to beryllium occur in operations such as foundry and smelting operations, machining, beryllium oxide ceramics and composites manufacturing and dental lab work. (aplusa-online.com)
  • The fields of invention and technical fields being patented under the provisional filings are the design of enhanced high thermal conductivity nuclear fuel made of uranium oxide with addition of a compatible high thermal conductivity material such as beryllium oxide using controlled microstructures in the product. (ibcadvancedalloys.com)
  • Preparation, certification and interlaboratory analysis of workplace air filters spiked with high-fired beryllium oxide. (cdc.gov)
  • People working or living near beryllium industries have the greatest potential for exposure to it. (cdc.gov)
  • Exposure to beryllium can affect the lungs and/or skin. (cdc.gov)
  • However, not everyone will develop health effects from beryllium exposure. (cdc.gov)
  • However, people who have had only infrequent exposure to beryllium may still develop health effects. (cdc.gov)
  • Once a person has been exposed to beryllium, they have a lifelong risk of developing disease even if exposure stops. (cdc.gov)
  • A pneumonia-like illness that follows exposure to high levels (50-100 micrograms/cubic meter) of beryllium. (cdc.gov)
  • How Can Families Reduce the Risk of Exposure to Beryllium? (cdc.gov)
  • There are several ways families can reduce exposure to beryllium. (cdc.gov)
  • Also, there is a beryllium exposure risk to the person handling and washing the contaminated clothing. (cdc.gov)
  • Go to OSHA's web site at https://www.osha.gov/berylliumrule/index.html to learn about the final rule in place to protect workers from Beryllium exposure. (cdc.gov)
  • People who work in beryllium manufacturing, fabricating, orreclaiming industries are at higher risk of exposure. (cdc.gov)
  • Exposure to beryllium can also cause something called beryllium sensitization, an immune response that can lead to more serious health problems if the person keeps being exposed. (cdc.gov)
  • However, EPA decided that eating or drinking beryllium does not cause cancer because there is not enough information to understand the toxicity for this route of exposure. (cdc.gov)
  • How can I protect my family from beryllium exposure? (cdc.gov)
  • Avoid exposure to air, water, or soil that is contaminated with high amounts of beryllium. (cdc.gov)
  • Q: How can beryllium exposure occur? (findlaw.com)
  • Beryllium exposure varies among different segments of the population. (findlaw.com)
  • Q: What are the effects of beryllium exposure? (findlaw.com)
  • The health effects associated with beryllium exposure depend on the amount and length of exposure. (findlaw.com)
  • Long term exposure to beryllium can increase the risk of developing lung cancer. (findlaw.com)
  • Also, it is unknown whether beryllium exposure results in birth defects or other developmental effects. (findlaw.com)
  • The authors recently reported updated associations between lung cancer and beryllium exposure in a large, pooled occupational cohort. (bmj.com)
  • 0.0001) exposure, adjusting for age, birth cohort and plant, and for cumulative (p=0.0017) beryllium exposure, adjusting for these factors plus short-term work status and exposure to asbestos. (bmj.com)
  • The estimated mean DWA beryllium exposure associated with 10 −3 excess lifetime risk based on the piecewise log-linear model is 0.033 μg/m 3 . (bmj.com)
  • Conclusion This study provides evidence that lung cancer risk is elevated at levels near the current US Occupational Safety and Health Administration beryllium exposure limit of 2.0 μg/m 3 DWA for workers. (bmj.com)
  • This study finds strong quantitative associations between lung cancer and cumulative, mean and maximum beryllium exposure, after adjusting for confounding. (bmj.com)
  • Beryllium exposure has long been associated with an immune-mediated, granulomatous lung disease termed chronic beryllium disease. (bmj.com)
  • 6 7 We recently reported updated associations between cumulative and maximum beryllium exposure and several diseases of a priori interest (including lung cancer), within a three-plant subcohort having detailed beryllium exposure data. (bmj.com)
  • SUMMARY: On January 9, 2017, the Occupational Safety and Health Administration (OSHA) issued a final rule adopting a comprehensive general industry standard for exposure to beryllium and beryllium compounds. (osha.gov)
  • Harber, p. 494] CBD has been diagnosed in workers exposed below the OSHA permissible exposure limit of 2 ug/m3 and in factories that used only 2% beryllium copper alloy. (haz-map.com)
  • The Obama administration is proposing new safety rules to limit workplace exposure to beryllium, a type of metal used in aerospace, electronics and other industries that can cause serious health problems when it's ground into dust and inhaled. (designworldonline.com)
  • The proposed rule would limit worker access to areas of high beryllium exposure and require medical exams for workers with high exposure to beryllium dust. (designworldonline.com)
  • Sensitization or exposure to beryllium in various industries like those of the aerospace facilities, mining extraction and beryllium alloy processing including research and development industries will require berylliosis screening. (chronicberylliumdisease.com)
  • Using beryllium blood lymphocyte proliferation test (BeLPT), the study concluded that this specific screening has a predictive value on the significant exposure of workers in the nuclear facilities. (chronicberylliumdisease.com)
  • The US federal government is proposing a new standard that would dramatically lower workplace exposure to beryllium, a widely used material that can cause devastating lung diseases. (aplusa-online.com)
  • Currently, OSHA's eight-hour permissible exposure limit for beryllium is 2.0 micrograms per cubic meter of air. (aplusa-online.com)
  • The 1971 limit significantly reduced fatalities due to acute beryllium disease but, over time, it became clear that exposure below that limit also had damaging long-term health effects. (aplusa-online.com)
  • Beryllium exposure decreased body weight, decreased motor coordination and increased anxiety level in dose and duration dependent manner. (who.int)
  • Thus, exposure of 1.0 mg/kg dose of beryllium for 4 weeks duration was found to be most suitable for further studies of assessment of therapeutic agent against beryllium induced neurotoxicity. (who.int)
  • Industries in the United States with airborne beryllium exposure and estimates of the number of current workers potentially exposed. (cdc.gov)
  • Exposure assessment at a beryllium ceramics facility following implementation of a dermal protection program. (cdc.gov)
  • Beryllium exposure can occur in manufacturing plants and the nuclear and aerospace industries. (medlineplus.gov)
  • The most prevalent (two studies) and CD1 mice (IARC, cifically including beryllium and source of human exposure to ar- 2012 ). (who.int)
  • In addition, in a study of CD1 beryllium compounds, cadmium senic is now drinking-water, where mice with "whole-life" exposure to and cadmium compounds, chromi- it is found primarily as the inorgan- multiple levels of sodium arsenite in um(VI) compounds, and nickel and ic forms of arsenite and arsenate. (who.int)
  • IARC Monographs, volume 58: beryllium, cadmium, mercury, and exposures in the glass manufacturing industry - summary of data reported and evaluation. (bvsalud.org)
  • It presents data reported and results of carcinogenicity evaluation for humans and animals of beryllium, cadmium, mercury, and glass. (bvsalud.org)
  • Free of nickel , beryllium, lead und cadmium. (hausmilling.com)
  • People can be exposed to small amounts of beryllium in the air before it falls to the ground. (cdc.gov)
  • There are small amounts of beryllium in food. (cdc.gov)
  • People who live near beryllium manufacturing facilities ormunicipal waste sites may also be exposed to higher amounts of beryllium. (cdc.gov)
  • In this Direct Final Rule (DFR), OSHA is adopting a number of clarifying amendments to address the application of the standard to materials containing trace amounts of beryllium. (osha.gov)
  • The proposed rule would not cover workers exposed to trace amounts of beryllium at coal-burning plants and aluminum production facilities, or those who work with coal slag in the construction and shipyard industries. (designworldonline.com)
  • The proposed rule would not cover some workers exposed to trace amounts of beryllium in raw materials, including those employed at coal-burning power plants and aluminum production facilities, and those performing abrasive blasting work with coal slag in the construction and shipyards industries. (aplusa-online.com)
  • For the amounts of beryllium that they could detect, the timer in the 65 million year old clay layer would have already run out - all of the beryllium would have decayed away. (berkeley.edu)
  • A more specific blood test, the blood beryllium lymphocyte proliferation test (BeLPT), identifies beryllium sensitization which may lead to chronic beryllium disease. (cdc.gov)
  • People exposed to beryllium are at risk for developing acute beryllium disease and chronic beryllium disease, which cause problems in the lungs. (cdc.gov)
  • People with chronic beryllium disease develop lesions (masses) in the lungs that can lead to scarring. (cdc.gov)
  • Individuals who become sensitive to beryllium (beryllium sensitization) and develop an allergic-type reaction may contract Chronic Beryllium Disease (CBD), an inflammatory reaction in the respiratory system. (findlaw.com)
  • Chronic beryllium disease, HLA-DPB1, and the DP peptide binding groove. (cdc.gov)
  • Multiple epidemiologic studies demonstrate associations between chronic beryllium disease (CBD), beryllium sensitization (BeS), and HLA-DPB1 alleles with a glutamic acid residue at position 69 (E69). (cdc.gov)
  • Chronic beryllium disease (CBD) is a granulomatous interstitial pneumonitis caused by a cell mediated, delayed hypersensitivity. (haz-map.com)
  • Over 1/2 of workers who have an abnormal BeLPT develop chronic beryllium disease. (haz-map.com)
  • Workers who inhale beryllium dust or fumes can develop a debilitating, incurable disease called chronic beryllium disease and face a greater risk of developing lung cancer. (designworldonline.com)
  • Under a special program created by Congress in 2000, the Labor Department has paid more than $500 million in compensation to nearly 2,500 former or current nuclear workers who were exposed to beryllium and developed chronic beryllium disease. (designworldonline.com)
  • When you have been found to BeLPT abnormal, it will be an initial step to further undergo medical test to identify if the person has developed an occupational lung disease called chronic beryllium disease or CBD. (chronicberylliumdisease.com)
  • The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some people called berylliosis. (periodic-table.org)
  • The association between HLA-DPB1Glu69 and chronic beryllium disease and beryllium sensitization. (cdc.gov)
  • Medical screening for chronic beryllium disease in Massachusetts. (cdc.gov)
  • Characterization of physicochemical properties of beryllium aerosols associated with prevalence of chronic beryllium disease. (cdc.gov)
  • Molecular basis of genetic risk assessment in chronic beryllium disease. (cdc.gov)
  • About 2 to 10 percent of people exposed to beryllium develop beryllium sensitization or chronic beryllium disease. (medlineplus.gov)
  • In some people, sensitization leads to chronic beryllium disease, which is a lung disease characterized by the formation of small masses of inflammatory cells (granulomas). (medlineplus.gov)
  • Having variants of the HLA-DPB1 gene that contain the protein building block (amino acid) glutamic acid at position 69 (written as E69) increases the risk of developing beryllium sensitization or chronic beryllium disease. (medlineplus.gov)
  • Another blood test, the blood beryllium lymphocyte proliferation test (BeLPT), identifies beryllium sensitization and has predictive value for CBD. (findlaw.com)
  • it is now diagnosed by BeLPT (beryllium lymphocyte proliferation test). (haz-map.com)
  • Beryllium blood lymphocyte proliferation test (BeLPT) is a very important test to determine how the immune system reacts to beryllium. (chronicberylliumdisease.com)
  • Skin contact with beryllium may cause an allergic response or lead to beryllium sensitization. (cdc.gov)
  • If you think you are exposed to beryllium, ask your doctor or nurse about getting this blood test for beryllium sensitization. (cdc.gov)
  • LaDou, p. 422] "Sensitization and CBD were associated with an area in which beryllium air levels exceeded 0.2 ug/m3, and not with areas where this level was rarely exceeded. (haz-map.com)
  • People working in industries where beryllium is mined, processed, machined, or converted into metal, alloys, and other chemicals may be exposed to high levels of beryllium. (cdc.gov)
  • Beryllium and beryllium-containing alloys and compounds have been produced commercially in the US since the 1940s. (cdc.gov)
  • As beryllium is toxic there are some safety concerns for handling its alloys. (chemeurope.com)
  • 2] As a result, beryllium copper is sometimes replaced by safer copper alloys such as Cu-Ni-Sn bronze. (chemeurope.com)
  • Beryllium copper has also been used for armour piercing bullets, [5] though any such usage is unusual because bullets made from steel alloys are much less expensive, but have similar properties. (chemeurope.com)
  • High strength beryllium copper alloys contain up to 2.7% of beryllium (cast), or 1.6-2% of beryllium with about 0.3% cobalt (wrought). (chemeurope.com)
  • High conductivity beryllium copper alloys contain up to 0.7% beryllium, together with some nickel and cobalt. (chemeurope.com)
  • IBC is an integrated manufacturer and distributor of rare metals (beryllium) based alloys and related products serving a variety of industries including nuclear energy, automotive, telecommunications and a range of industrial applications. (ibcadvancedalloys.com)
  • IBC is creating a dynamic global beryllium and advanced alloys company. (ibcadvancedalloys.com)
  • World Wide Distributor of Beryllium-Free Copper Alloys. (performancealloys.net)
  • Most families are not exposed to high levels of beryllium. (findlaw.com)
  • If you work at a facility that uses beryllium, make sure you change your clothes and clean your hair and skin before leaving your job and returning home. (cdc.gov)
  • In this case, Dunu uses beryllium in a rolled-foil form, making it the first pure Be driver that I am aware of. (headphones.com)
  • 1]Beryllium compounds are known human carcinogens when inhaled. (chemeurope.com)
  • The new rule represents an example of how NIOSH research on beryllium has had a real impact in the workplace to reduce exposures and disease. (cdc.gov)
  • The findings of NIOSH research contributed to a rule that will lower exposures and reduce disease related to beryllium in workplace across the country. (cdc.gov)
  • Breathing in beryllium can lead to lung disease and lung cancer. (cdc.gov)
  • Symptoms of acute beryllium disease include irritation of the lungs, nose, and throat, as well as trouble breathing and tiredness. (cdc.gov)
  • There are also blood tests that measure whether you have been exposed to beryllium and might be at risk of developing beryllium lung disease. (cdc.gov)
  • If beryllium air levels are high enough, breathing it in can result in an acute condition called acute beryllium disease, which resembles pneumonia. (findlaw.com)
  • Acute beryllium disease has not been seen in the United States since beryllium was banned in the fluorescent and neon lamp industries in the 1960s. (haz-map.com)
  • A research study in September 2004 was done to determine the significant level of risk among workers exposed to beryllium at the Department of Energy's (DOE) nuclear weapons facilities. (chronicberylliumdisease.com)
  • The Department of Health and Human Services (HHS) considers beryllium to be a known human carcinogen (causing cancer). (cdc.gov)
  • The U.S. Environmental Protection Agency (EPA) has classified inhaled (breathed in) beryllium as a probable human carcinogen. (cdc.gov)
  • The Department of Health and Human Services (DHHS) and the International Agency for Research on Cancer (IARC) have determined that beryllium is a human carcinogen (cancer-causing). (findlaw.com)
  • However, the U.S. Environmental Protection Agency (EPA) has determined that beryllium is a probable human carcinogen. (findlaw.com)
  • Objectives Beryllium has been identified as a human carcinogen on the basis of animal and epidemiological studies. (bmj.com)
  • Beryllium has been designated a known human carcinogen based upon human and animal studies of lung cancer, including recent follow-up of a cohort of US beryllium-processing workers. (bmj.com)
  • 1 Toxicological and epidemiological studies have more recently led the International Agency for Research on Cancer to designate beryllium as a human carcinogen. (bmj.com)
  • Isotope abundances of beryllium. (webelements.com)
  • Beryllium-9 is the only stable isotope found on earth. (internetchemistry.com)
  • 5 - Identification of the Beryllium isotope. (internetchemistry.com)
  • 6 - Relative atomic mass of the Beryllium isotope (isotopic mass including electrons) and the mass of the atomic nucleus in square brackets (nuclear mass, nuclide mass without electrons), each related to 12 C = 12.00000 [2]. (internetchemistry.com)
  • However, before they could take the beryllium measurements, they learned that the published decay rate for the isotope was wrong. (berkeley.edu)
  • The legal limit for beryllium, established in 1992, was based on a toxicity study in laboratory animals published in 1970. (ewg.org)
  • Curcumin enhanced therapeutic efficacy of M. oleifera root extract and showed better antioxidant potential against beryllium toxicity. (greenmedinfo.com)
  • Q: What are the federal government standards concerning maximum beryllium levels in the air? (findlaw.com)
  • He's determined to beryllium himself arsenic a surgeon, conscionable similar galore successful his household that person travel earlier him, but helium volition person to halt relying connected his radical skills and enactment successful the work," Deadline reported. (buildhope.net)
  • Beryllium is a toxic metal that is both naturally occurring and released into the environment from industrial pollution and incineration. (ewg.org)
  • In the present study, we carried out a dose and duration dependent study on beryllium induced toxic manifestations in rat brain. (who.int)
  • Behavioural, biochemical and histopathological variables were performed to evaluate toxic effects of beryllium. (who.int)
  • In dose dependent study, maximum alterations in various parameters were evident at 1.0 mg/kg dose, and also it showed toxic consequences of beryllium in a duration dependent manner. (who.int)
  • Variants of the HLA-DPB1 gene are associated with immune reactions to beryllium, a metallic element that can be toxic. (medlineplus.gov)
  • Most exposures to beryllium are in the workplace. (cdc.gov)
  • Further data for radioisotopes (radioactive isotopes) of beryllium are listed (including any which occur naturally) below. (webelements.com)
  • Further data for naturally occuring isotopes of beryllium are listed above. (webelements.com)
  • List, data and properties of all known isotopes of Beryllium as well as radioactive decay products and intermediate products. (internetchemistry.com)
  • 12 isotopes or nuclides of the element beryllium are known, of which only one - 9 Be - is stable. (internetchemistry.com)
  • Beryllium copper has also found use in ultra-low temperature cryogenic equipment, such as dilution refrigerators , because of its combination of mechanical strength and relatively high thermal conductivity in this temperature range. (chemeurope.com)
  • PMID 19092488 ] Beryllium and cobalt are the metals that most frequently cause skin granulomas. (haz-map.com)
  • Future Metals is the premier source of high quality beryllium copper round bar. (futuremetals.com)
  • Browse our extensive selection of beryllium copper round bar here or get in touch with a Future Metals professional for a personalized quote on your next beryllium copper bar order. (futuremetals.com)
  • Metals (beryllium and zirconium), min- node resection from 1991 to 2001. (cdc.gov)
  • USA Rare Earth owns a mine in West Texas where they unearth metals such as lithium and beryllium. (ktul.com)
  • Beryllium is a lightweight metal with unique mechanical and thermal properties that make it ideal for use in many applications and industries including defense, aerospace, telecommunications, automotive electronics, and medical specialties. (cdc.gov)
  • Because it is lightweight and strong, beryllium has many uses in the electronics, aerospace, and defense industries. (cdc.gov)
  • Because beryllium is a light weight metal and extremely stiff in its elemental form, it has several applications in the aerospace, nuclear, and manufacturing industries. (findlaw.com)
  • ATSDR Case Studies #19] The BeLPT is also useful in screening beryllium exposed workers. (haz-map.com)
  • Normal or Non-reactive BeLPT result happens when lymphocytes did not react strongly to beryllium. (chronicberylliumdisease.com)
  • Abnormal or Reactive BeLPT result is when your cells react strongly to beryllium. (chronicberylliumdisease.com)
  • Beryllium is a lightweight metal that is found naturally in rocks, coal, soil, and volcanic dust. (cdc.gov)
  • Beryllium dust enters the air from burning coal and oil, and eventually settles over land and water. (findlaw.com)
  • OSHA's beryllium OEL: inadequacy and urgent need for a new standard, the case of recycling operations and dental technicians. (cdc.gov)
  • Our beryllium nitride Be3N2 powder (CAS 1304-54-7) is with high purity, ultrafine particle size, bigger surface area. (iberocruceros.com)
  • Comprehensive characterization strategies for ultrafine particles: lessons from beryllium health and safety studies. (cdc.gov)
  • Development of a filter assembly to match the deposition of ultrafine aerosol in the lung: a pilot study with beryllium. (cdc.gov)
  • Beryllium nitride is used in refractory ceramics as well as in nuclear reactors and to produce radioactive carbon-14 for tracer applications. (iberocruceros.com)
  • People living near these industries or near uncontrolled hazardous waste sites may also be exposed to higher than normal levels of beryllium. (findlaw.com)
  • The EPA restricts the amount of beryllium that industries may release into the air to 0.01 µg/m 3 , averaged over a 30-day period. (findlaw.com)
  • We enrolled 502 BeS/CBD subjects and 653 beryllium-exposed controls from three beryllium industries who gave informed consent for participation. (cdc.gov)
  • The feasibility of studying the health implications of surface beryllium contamination: a review of eight industries. (cdc.gov)
  • Beryllium can damage lungs, bones and the digestive system. (ewg.org)
  • This collaboration of industry and labor presents a historic opportunity to protect the lives and lungs of thousands of beryllium-exposed workers," OSHA head David Michaels said. (designworldonline.com)
  • It is important to follow all National Institute for Occupational Safety and Health (NIOSH) and Occupational Safety and Health Administration (OSHA) safety guidelines and regulations and wear personal protective equipment if you work with beryllium. (cdc.gov)
  • The International Agency for Research on Cancer (IARC) has classified beryllium as carcinogenic to humans, which means there was enough evidence to find cancer in both animals and humans. (cdc.gov)
  • Instructions: All submissions must include the Agency's name, the title of the rulemaking (Beryllium Standard: Direct Final Rule), and the docket number (OSHA-2018-0003). (osha.gov)
  • Higher-than-normal levels of beryllium may be in soil at hazardous waste sites so those living near uncontrolled hazardous waste sites may be exposed to higher than normal levels of beryllium. (cdc.gov)
  • Beryllium is carried to water bodies when soil and rocks are broken down by weather. (cdc.gov)
  • Beryllium can also enter water from erosion of rocks and soil, and from industrial waste. (findlaw.com)
  • Liv-52 protectis against beryllium intoxication. (greenmedinfo.com)
  • Total RBCs and hemoglobin content were decreased after beryllium intoxication. (who.int)
  • Serum bilirubin, creatinine, triglyceride, AST and ALT content were increased after beryllium intoxication, whereas ALP content was decreased in dose and duration dependent manner. (who.int)
  • Beryllium is a naturally occurring metal found in several minerals. (cdc.gov)
  • Beryllium can be measured in the urine, blood, lung and skin samples. (cdc.gov)
  • The amount of beryllium in blood or urine may not indicate how much or how recently you were exposed. (cdc.gov)
  • Beryllium can be measured in the urine and blood. (findlaw.com)
  • However, the amount of beryllium in the blood or urine may not accurately reflect how much or how recently you were exposed. (findlaw.com)
  • Standard Specification for Copper-Cobalt-Beryllium, Copper-Nickel-Beryllium, and Copper-Nickel-Lead-Beryllium Rod and Bar (UNS Nos. (learnworld.co)
  • About 35,000 workers in the United States are exposed to beryllium, according to OSHA estimates. (designworldonline.com)
  • The video below looks at Beryllium , which has an atomic number of 4 and the symbol Be. (nottingham.ac.uk)
  • The atomic mass of beryllium is 9.0121831(5) u. (internetchemistry.com)
  • Beryllium is a chemical element with atomic number 4 which means there are 4 protons and 4 electrons in the atomic structure. (periodic-table.org)
  • No symptoms, but the body identifies beryllium as foreign. (cdc.gov)
  • The latest proposal emerged out of an unusual partnership between Materion Corp., an Ohio-based company that is the nation's largest beryllium manufacturer, and the United Steelworkers, the union representing many of those working with beryllium. (designworldonline.com)
  • Before the world class beryllium deposits were discovered at Spor Mountain, Utah, in 1959, Nevada was the nation's principal producer of beryllium. (icmj.com)
  • This table gives information about some radiosotopes of beryllium, their masses , their half-lives , their modes of decay , their nuclear spins , and their nuclear magnetic moments . (webelements.com)
  • Beryllium is also an essential component of nuclear weapons. (designworldonline.com)
  • Beryllium nitride is used in refractory ceramics as well as in nuclear reactors and in the production of radiocarbon -14 for tracer applications. (iberocruceros.com)
  • its photodisintegration is significant in nuclear astrophysics, pertaining to the abundance of beryllium and the consequences of the instability of 8 Be . (wikipedia.org)
  • However, children should avoid playing in soils near uncontrolled hazardous waste sites where beryllium may have been discarded. (findlaw.com)
  • However, the advantages of using Beryllium copper in hazardous environments outweighs these disadvantages. (chemeurope.com)