Asbestos, Amphibole
Asbestos
Asbestos, Serpentine
Asbestos, Amosite
Mineral Fibers
Long, pliable, cohesive natural or manufactured filaments of various lengths. They form the structure of some minerals. The medical significance lies in their potential ability to cause various types of PNEUMOCONIOSIS (e.g., ASBESTOSIS) after occupational or environmental exposure. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p708)
Mesothelioma
A tumor derived from mesothelial tissue (peritoneum, pleura, pericardium). It appears as broad sheets of cells, with some regions containing spindle-shaped, sarcoma-like cells and other regions showing adenomatous patterns. Pleural mesotheliomas have been linked to exposure to asbestos. (Dorland, 27th ed)
Asbestosis
Pleural Neoplasms
Talc
Silicic Acid
Occupational Exposure
Pleura
Aluminum Silicates
Silicon Dioxide
Lung
Air Pollutants, Occupational
Inhalation Exposure
Carcinogens
Microscopy, Electron
Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.
Public Health
Journal Impact Factor
Publishing
Bibliometrics
Peer Review, Research
The evaluation by experts of the quality and pertinence of research or research proposals of other experts in the same field. Peer review is used by editors in deciding which submissions warrant publication, by granting agencies to determine which proposals should be funded, and by academic institutions in tenure decisions.
Bacteriology
Authorship
Fossil Fuels
Biological effects of naturally occurring and man-made fibres: in vitro cytotoxicity and mutagenesis in mammalian cells. (1/97)
Cytotoxicity and mutagenicity of tremolite, erionite and the man-made ceramic (RCF-1) fibre were studied using the human-hamster hybrid A(L) cells. Results from these fibres were compared with those of UICC Rhodesian chrysotile fibres. The A(L) cell mutation assay, based on the S1 gene marker located on human chromosome 11, the only human chromosome contained in the hybrid cell, has been shown to be more sensitive than conventional assays in detecting deletion mutations. Tremolite, erionite and RCF-1 fibres were significantly less cytotoxic to A(L) cells than chrysotile. Mutagenesis studies at the HPRT locus revealed no significant mutant yield with any of these fibres. In contrast, both erionite and tremolite induced dose-dependent S1- mutations in fibre-exposed cells, with the former inducing a significantly higher mutant yield than the latter fibre type. On the other hand, RCF-1 fibres were largely non-mutagenic. At equitoxic doses (cell survival at approximately 0.7), erionite was found to be the most potent mutagen among the three fibres tested and at a level comparable to that of chrysotile fibres. These results indicate that RCF-1 fibres are non-genotoxic under the conditions used in the studies and suggest that the high mesothelioma incidence previously observed in hamster may either be a result of selective sensitivity of hamster pleura to fibre-induced chronic irritation or as a result of prolonged fibre treatment. Furthermore, the relatively high mutagenic potential for erionite is consistent with its documented carcinogenicity. (+info)Chrysotile, tremolite and fibrogenicity. (2/97)
Recently published analyses have shown that the risks of mesothelioma and lung cancer in Quebec chrysotile miners and millers were related to estimated level of fibrous tremolite in the mines where they had worked. An analysis has therefore been made of radiographic changes in men who in 1965 were employed by companies in Thetford Mines where the same question could be examined for fibrogenicity. Of 294 men who met the necessary requirements, 129 had worked in six centrally located mines, where the tremolite content was thought to be high, 81 in 10 peripheral mines where it was thought to be low and 84 in both. The median prevalence of small parenchymal opacities (> or = 1/0) in chest radiographs read by six readers was higher among men ever than never employed in the central mines (13.6% against 7.4%), despite the fact that the mean cumulative exposure was lower in the former (430 mpcf.y vs 520 mpcf.y). After accounting by logistic regression for cigarette smoking, age, smoking-age interaction and cumulative exposure, the adjusted odds ratio for central mine employment was 2.44 (95% lower bound: 1.06). Together with other surveys of asbestos miners and millers, this study suggests that amphibole fibres, including tremolite, are more fibrogenic than chrysotile, perhaps to the same extent that they are carcinogenic, though the data available were not sufficient to address the latter question. (+info)Environmental exposure to tremolite and respiratory cancer in New Caledonia: a case-control study. (3/97)
A case-control study on respiratory cancers was conducted in New Caledonia (South Pacific), where a high incidence of malignant pleural mesothelioma had been observed. The disease pattern suggested an environmental exposure to asbestos. The first results showed that, in some areas, tremolite asbestos derived from local outcroppings was used as whitewash (locally named "po"). All cases diagnosed between 1993 and 1995 (including 15 pleural mesotheliomas, 228 lung cancers, and 23 laryngeal cancers) and 305 controls were included in the study. Detailed information on past or present use of the whitewash, residential history, smoking, diet, and occupation was collected. The risk of mesothelioma was strongly associated with the use of the whitewash (odds ratio (OR) = 40.9; 95% confidence interval (CI): 5.15, 325). All Melanesian cases had been exposed. Among Melanesian women, exposure to the whitewash was associated with an increased risk of lung cancer (OR = 4.89; 95% CI: 1.13, 21.2), and smokers exposed to po had an approximately ninefold risk (OR = 9.26; 95% CI: 1.72, 49.7) compared with women who never smoked and had never used the whitewash. In contrast, no association was noted between exposure to po and lung cancer risk among Melanesian men, probably because of lower exposure levels. Among non-Melanesians, the numbers of exposed subjects were too small to assess the effect of exposure to po. There was no indication of elevated risks for the other cancer sites. (+info)The quantitative risks of mesothelioma and lung cancer in relation to asbestos exposure. (4/97)
Mortality reports on asbestos exposed cohorts which gave information on exposure levels from which (as a minimum) a cohort average cumulative exposure could be estimated were reviewed. At exposure levels seen in occupational cohorts it is concluded that the exposure specific risk of mesothelioma from the three principal commercial asbestos types is broadly in the ratio 1:100:500 for chrysotile, amosite and crocidolite respectively. For lung cancer the conclusions are less clear cut. Cohorts exposed only to crocidolite or amosite record similar exposure specific risk levels (around 5% excess lung cancer per f/ml.yr); but chrysotile exposed cohorts show a less consistent picture, with a clear discrepancy between the mortality experience of a cohort of xhrysotile textile workers in Carolina and the Quebec miners cohort. Taking account of the excess risk recorded by cohorts with mixed fibre exposures (generally<1%), the Carolina experience looks uptypically high. It is suggested that a best estimate lung cancer risk for chrysotile alone would be 0.1%, with a highest reasonable estimate of 0.5%. The risk differential between chrysotile and the two amphibole fibres for lunc cancer is thus between 1:10 and 1:50. Examination of the inter-study dose response relationship for the amphibole fibres suggests a non-linear relationship for all three cancer endpoints (pleural and peritoneal mesotheliomas, and lung cancer). The peritoneal mesothelioma risk is proportional to the square of cumulative exposure, lung cancer risk lies between a linear and square relationship and pleural mesothelioma seems to rise less than linearly with cumulative dose. Although these non-linear relationships provide a best fit ot the data, statistical and other uncertainties mean that a linear relationship remains arguable for pleural and lung tumours (but not or peritoneal tumours). Based on these considerations, and a discussion fo the associated uncertainties, a series of quantified risk summary statements for different elvels of cumulative exposure are presented. (+info)Amphibole fibres in Chinese chrysotile asbestos. (5/97)
Ten chrysotile bulk samples originating from six Chinese chrysotile mines were studied for amphibole fibres. Five of the mines operate on ultramafic rocks whereas one exploits a dolomite-hosted deposit. The asbestos fibre content in lung tissue was examined from seven deceased workers of the Shenyang asbestos plant using these raw materials. The bulk samples were pretreated with acid/alkali-digestion, and thereafter, scanning and transmission electron microscopy, X-ray microanalysis, selected area electron diffraction and X-ray powder diffractometry were used to identify the minerals. Sample preparation of lung tissue involved drying and low-temperature ashing. All of the bulk samples contained amphibole fibres as an impurity. The amphibole asbestos contents were between 0.002 and 0.310 w-%. Tremolite fibres were detected in every sample but anthophyllite fibres were present only in the sample originating from the dolomite-hosted deposit. In comparison, anthophyllite (71%), tremolite (9%) and chrysotile (10%) were the main fibre types in the lung tissue samples indicating faster pulmonary clearance of chrysotile fibres. The total levels ranged from 2.4 to 148.3 million fibres (over 1 microm in length) per gram of dry tissue, and they were consistent with heavy occupational exposure to asbestos. (+info)Erionite bodies and fibres in bronchoalveolar lavage fluid (BALF) of residents from Tuzkoy, Cappadocia, Turkey. (6/97)
OBJECTIVES: The high incidence of malignant mesothelioma in some villages of Cappadocia (Turkey) is due to environmental exposure to erionite fibres. The aim was to evaluate the fibre burden in bronchoalveolar lavage fluid (BALF) from inhabitants of an erionite village and compare it with Turkish subjects with or without environmental exposure to tremolite asbestos. METHODS: Ferruginous bodies (FBs) and fibres were measured and analyzed by light and transmission electron microscopy (TEM) in the BALF of 16 subjects originating from Tuzkoy. RESULTS: FBs were detected in the BALF of 12 subjects, with concentrations above 1 FB/ml in seven of them. Erionite was the central fibre of 95.7% of FBs. Erionite fibres were found in the BALF of all subjects, by TEM, and these fibres were low in Mg, K, and Ca compared with erionite from Tuzkoy soil. The mean concentration of erionite fibres in BALF was similar to that of tremolite fibres in Turks with environmental exposure to tremolite. The proportion of fibres longer than 8 microm in BALF represented 35.6% for erionite compared with 14.0% for tremolite. The asbestos fibre concentrations in erionite villagers was not different from that in Turks without environmental exposure to tremolite. CONCLUSION: Analysis of BALF gives information about fibre retention in populations environmentally exposed to erionite for whom data on fibre burden from lung tissue samples are scarce. This may apply to exposed Turks having emigrated to other countries. (+info)Dustiness of different high-temperature insulation wools and refractory ceramic fibres. (7/97)
Recent regulations are encouraging the replacement of older types of man-made mineral fibre by more soluble and, thus, less biopersistent compositions. In order for there to be any health benefits from this policy and to gain maximum benefit from such substitutions, the use of the new materials should not increase exposure. The work reported here was undertaken to investigate the use of new high-temperature glass insulation wools in place of refractory ceramic fibres (RCF). Airborne fibre levels occurring during the manufacture of both RCF and calcium magnesium silicate wools (CMS) were compared using measurements of genuine workplace exposure from a routine monitoring operation on the same plant. Exposures during use were compared in one customer facility where RCF and CMS blankets were used for the same task. Further comparisons were made in a laboratory test of dustiness using a "shaking box test". For some manufacturing tasks there are only a few workplace samples and there are few opportunities for genuine comparisons with both RCF and CMS in identical uses. However, both materials produced very similar exposure levels during manufacture, use and in the laboratory test. The novel magnesium silicate fibre was significantly dustier in the laboratory test. (+info)p53, p21 and metallothionein immunoreactivities in patients with malignant pleural mesothelioma: correlations with the epidemiological features and prognosis of mesotheliomas with environmental asbestos exposure. (8/97)
The aim of this study is to investigate immunoreactivity for p53, p21 and metallothionein in diffuse malignant pleural mesothelioma (DMPM) and to determine the relationships between the age, sex, asbestos exposure time, survival of DMPM patients with environmental asbestos exposure and immunoreactivity to p53, p21 and metallothionein. Sixty-seven histopathologically-confirmed DMPMs, 38 of whom had environmental and 29 had occupational asbestos exposure, were included. The tumour tissue samples were immunostained with antibodies against p53, p21 and metallothionein. Epidemiological data and the survival times for the DMPM patients with environmental asbestos exposures were obtained from hospital records. Thirty-three per cent of the DMPMs were positive for p53, 35% for p21 and 52% for metallothionein. There was no statistical difference between the histological subtypes of DMPM in terms of immunoreactivity for p53, p21 and metallothionein. For p21 and metallothionein there was a statistically significant difference between the exposure characteristics: patients with environmental asbestos exposure had shown more immunopositivity. There were statistically significant differences between age groups and between asbestos exposure times for metallothionein, and between asbestos exposure times and p21. The patients with positive immunostaining had longer exposure times and were older than those having negative immunostaining. The differences between survival of the patients were not statistically significant in terms of the immunohistochemical results for p53, p21 and metallothionein. (+info)
THE ROLE OF THE MACROPHAGE IN ASBESTOS INDUCED AUTOANTIBODY PRODUCTION by David J. Blake
Libby Amphibole Asbestos
Amphibole synonyms, amphibole antonyms - FreeThesaurus.com
Tremolite - Wikipedia
Lounge of the Lab Lemming: 2010
NIOSHTIC-2 Publications Search - 20033941 - Asbestos-related cancer and the amphibole hypothesis - Stayner and colleagues...
Lincoln County Asbestos Resource Program
Amphibole fabric formation during diffusion creep and the rheology of shear zones | Geology | GeoScienceWorld
Asbestos Products - Industrial in Pune, India
Anthophyllite - Wikipedia
McCrone Research Institute / Chicago
Asbestos Products
FERRO-EDENITE (Sodium Calcium Iron Magnesium Aluminum Silicate Hydroxide)
Synthesis and infrared spectroscopy of amphiboles along the tremolite-pargasite join | European Journal of Mineralogy |...
Amphibole - New World Encyclopedia
Sterling Silver Horizon - Amphibole Quartz Rollerball Necklace
- Roadkill Gems
NIOSHTIC-2 Publications Search - 00196004 - NIOSH Testimony on Occupational Exposure to Asbestos, Tremolite, Anthophyllite,...
T H Agriculture & Nutrition, L.L.C. | Asbestos Use, Products & Litigation
Armstrong World Industries - Trust Fund, Lawsuits & Asbestos Products
List of Asbestos Products | Maurice Blackburn
ASBESTOS AND ASBESTOS PRODUCTS - Northwest Accredited Businesses
Tyler Pipe/Swan Transportation | Manufacturers of Asbestos Products
Self Raising Flour (SRF) g diet. fibre to g sat. fat converter for culinary teaching and diet.
Tremolite Mineral Data
American Mineralogist - July 2002 Data
Sodic-ferri-ferropedrizite Mineral Data
Manganocummingtonite: Manganocummingtonite mineral information and data.
Freedomfertility.com Reviews
Diagnosis
Lincoln County Asbestos Resource Program - Vermiculite & Libby
Asbestos Vermiculite | Scotts Asbestos
Contaminated Vermiculite in Libby, Montana - Goldberg, Persky & White, P.C.
The EPA National Library Catalog | EPA National Library Network | US EPA
The EPA National Library Catalog | EPA National Library Network | US EPA
Asbestos Products Removal
in
CM11 - Business Directory
- 192.com
Asbestos Exposure & Risk of Developing Asbestos Related - arnoldarnold25
EPA Releases Promising Data About Air Quality in Libby, Montana - Asbestos.net
Low exposure to asbestos-like mineral from Montana vermiculite may up lung disease risk - Mesothelioma News
Your Blog - klavsen65salisbury
IN RE: ASBESTOS PRODUCTS LIABILITY LITIGATION (No. VI) | FindLaw
Study into Libby Asbestos Effects to be Performed
Angel Phantom (Amphibole) Quartz
Mineralogical evidence for crystallization conditions and petrogenesis of ilmenite-series I-type granitoids at the Baogutu...
Biomarkers to Detect Mesothelioma Early in Patients Exposed to Asbestos or Vermiculite - Full Text View - ClinicalTrials.gov
asbestos | OSHA Safety Manuals
Asbestos Exposure | KCP Law Group | Appleton, Sheboygan, Green Bay
Asbestos | Daily Mail Online
What is Asbestos? - Mesothelioma Questions
French Bulldog Rescue Network :: Libby
Ban-Asbestos-India: August 2007
Settlement Near in Asbestos Lawsuit in Libby, Montana?
Mineral Database | National Museum Wales
Asbestos and Asbestos Products
ASTM C551 / C551M - 07(2019) Standard Specification for Asbestos-Cement Fiberboard Insulating Panels
Asbestos Products Database | Asbestos Awareness
Add comment
Metal Lathers -Asbestos.net
Safety Tips Archives - Home Tech Handyman Ltd.
Wife Speaks About Husbands Treatment in Mesothelioma | Wives of those affected with Mesothelioma
Asbestos Causes Mesothelioma | Spectra Analysis - The Asbestos Experts
Who lost the big asbestos case in Libby?
Asbestos
Asbestos
Asbestos Abatement Information - CARD in Libby, MT
xymphora: Sayanim Libby
Scandinavian Journal of Work, Environment & Health - Incidence of cancer among the participants of the Finnish Asbestos...
PAS#017 Mountain Leather from Italy - Asbestos Minerals
Sculpted nephrite fibula. China, modern - Expertissim
Nephrite fibula. China, 20th Century - Expertissim
West African Jade Stone Beads - Deep Green | Nephrite Jade
ASTM C428 / C428M - 05(2011)e1 Standard Specification for Asbestos-Cement Nonpressure Sewer Pipe on Environmental XPRT
Tremolite
One of the six recognized types of asbestos. Approximately 40,200 tons of tremolite asbestos is mined annually in India. It is ... Tremolite is a member of the amphibole group of silicate minerals with composition: Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2. ... The fibrous form of tremolite is one of the six recognised types of asbestos. This material is toxic, and inhaling the fibers ... "Asbestos: Foe or Friend?". Indmedica Cyber Lectures. Indmedica. Retrieved 2 January 2012. CS1 maint: discouraged parameter ( ...
Asbestosis
There are two types of fibers: amphibole (thin and straight) and serpentine (curly). All forms of asbestos fibers are ... "Asbestos". CDC. October 9, 2013. Retrieved 13 November 2015.. *^ Smith, Dorsett D. (2015). The Health Effects of Asbestos: An ... "Asbestos Exposure". National Cancer Institute, USA. 2017-06-15.. *. "Environmental Health Guidance Note - Asbestos" (PDF). ... The first lawsuits against asbestos manufacturers occurred in 1929. Since then, many lawsuits have been filed against asbestos ...
Mineral
However, asbestos are known carcinogens, and cause various other illnesses, such as asbestosis; amphibole asbestos ( ... Several amphibole mineral species can have an asbestiform crystal habit. These asbestos minerals form long, thin, flexible, and ... as it is less dangerous in terms of health than the amphibole asbestos. Inosilicates consist of tetrahedra repeatedly bonded in ... Finally, the amphiboles are usually hydrated, that is, they have a hydroxyl group ([OH]−), although it can be replaced by a ...
Anthophyllite
In Finland anthophyllite asbestos was mined in two mines, the larger one Paakkila in the Tuusniemi commune started in 1918 and ... Anthophyllite is an amphibole mineral: ☐Mg2Mg5Si8O22(OH)2 (☐ is for a vacancy, a point defect in the crystal structure), ... It was mined in Finland and also in Matsubase, Japan where a large-scale open-cast asbestos mine and mill was in operation ... Some forms of anthophyllite are lamellar or fibrous and are classed as asbestos. The name is derived from the Latin word ...
UN number
There are some exceptions, for example NA 2212 is all asbestos with UN 2212 limited to Asbestos, amphibole amosite, tremolite, ...
Jade
... can refer to either of two different silicate minerals: nephrite (a silicate of calcium and magnesium in the amphibole ... the silky fibrous mineral form is one form of asbestos). The higher the iron content, the greener the colour. Tremolite occurs ... Nephrite consists of a microcrystalline interlocking fibrous matrix of the calcium, magnesium-iron rich amphibole mineral ...
Oxyanion
In amphiboles, (of which asbestos is an example) two chains are linked together by sharing of a third corner on alternate ...
Chrysotile
... asbestos fibres have been identified in the lung. Amphibole fibres have usually predominated, but in a few cases mainly or only ... Chrysotile or white asbestos is the most commonly encountered form of asbestos, accounting for approximately 95% of the ... These state that "Asbestos exposure is associated with parenchymal asbestosis, asbestos-related pleural abnormalities, ... In September 2012, governments in Quebec and Canada ended official support for Canada's last asbestos mine in Asbestos, Quebec ...
Nephrite
... is a variety of the calcium, magnesium, and iron-rich amphibole minerals tremolite or actinolite (aggregates of which ... also make up one form of asbestos). The chemical formula for nephrite is Ca2(Mg, Fe)5Si8O22(OH)2. It is one of two different ...
Asbestiform
Other asbestiform minerals include riebeckite, an amphibole whose fibrous form is known as crocidolite or "blue asbestos", and ... "More Information on Asbestos Removal". Total Asbestos Removal Brisbane. 2019-07-21. Retrieved 2019-07-24. v t e. ... Chrysotile Committee on Asbestos: Selected Health Effects, 2006, Asbestos: Selected Cancers, National Academies Press, ISBN 978 ... The most common asbestiform mineral is chrysotile, commonly called "white asbestos", a magnesium phyllosilicate part of the ...
Fiber
Asbestos is the only naturally occurring long mineral fiber. Six minerals have been classified as "asbestos" including ... chrysotile of the serpentine class and those belonging to the amphibole class: amosite, crocidolite, tremolite, anthophyllite ... Mineral fibers can be particularly strong because they are formed with a low number of surface defects, asbestos is a common ...
Ferrogedrite
Nomenclature of amphiboles: Additions and revisions to the International Mineralogical Association's amphibole nomenclature. ... Created by distinct events, exsolution during cooling suggests its structure can be in asbestos form. This is a hydrous mineral ... separating it from the calcic-sodic amphiboles. It is related to anthophyllite amphibole and gedrite through coupled ... Ferrogedrite is an amphibole mineral with the complex chemical formula of ☐Fe2+2(Fe2+3Al2)(Si6Al2)O22(OH)2. It is sodium and ...
El Dorado County, California
Portions of El Dorado County are known to contain natural asbestos formations near the surface. The USGS studied amphiboles in ... The study found that many amphibole particles in the area meet the counting rule criteria used by the EPA for chemical and ... The executive summary pointed out that even particles that do not meet requirements for commercial-grade-asbestos may be a ... naturally occurring asbestos information El Dorado County Weather El Dorado County Visitors Authority Sierra Community Access ...
Asbestos
Amphibole group[edit]. Amphiboles including amosite (brown asbestos) and crocidolite (blue asbestos) were formerly used in many ... History of Asbestos, Asbestos.com, retrieved 2016-04-07. *^ a b "Asbestos in the home booklet. Wrekin housing trust" (PDF). ... brown asbestos, white asbestos, and green asbestos.[3]. Asbestos mining existed more than 4,000 years ago, but large-scale ... Other regulated asbestos minerals, such as tremolite asbestos, CAS No. 77536-68-6, Ca2Mg5Si8O22(OH)2; actinolite asbestos, CAS ...
Index of chemistry articles
Amedeo Avogadro Americium Amethyst amide amine amino acid Ammonia ammonium Ammonium nitrate Ammonium perchlorate Amphibole ... aromatic amine aromatic compound Arrhenius equation arsenic Arthur Harden Artturi Ilmari Virtanen Arfvedsonite Asbestos ...
Gogebic Range
... carcinogenic airborne asbestos-like amphibole fibers from the blasting, crushing, transport, and processing of grunerite rock ( ...
Šumperk District
... amphibole, asbestos and magnetite crystals Petrov nad Desnou - staurolite crystals Maršíkov - beryl, chrysoberyl, columbite, ...
Mr Fluffy
... loose-fill amphibole asbestos (in most cases brown amosite, though instances of blue crocidolite have been recorded) as an ... for residents caught up in loose-fill asbestos scandal Mr Fluffy: Full list of asbestos-contaminated homes in Canberra released ... Jansen started using asbestos as an insulation as early as 1967, and began using it in loose form in 1968, prompting a ... Loose Fill Asbestos has also been found in locations far removed from Canberra, such as three confirmed locations in Lithgow, ...
Troy, Montana
... sometimes named Libby Amphibole asbestos (LA). Removal actions began in 2000, and in 2002 the site was moved to the EPA's ... "LIBBY ASBESTOS SITE Site Profile". cumulis.epa.gov. Retrieved December 12, 2020. "Tribal Territories in Montana - Indian ... "US transfers care for towns polluted with asbestos to state". Washington Post. ISSN 0190-8286. Retrieved December 13, 2020. " ... Troy suffered from the area's contamination from nearby vermiculite mines contaminated with particularly fragile asbestos, ...
United States v. Reserve Mining Company
Court for the District of Minnesota case that determined the Reserve Mining Company was responsible for amphibole asbestos ... Eventually, Lord allowed the EPA to issue an asbestos warning to the public. The asbestos issue defined the trial when it ... Selikoff argued that the lake contained asbestos-like fibers. He also said he thought a thorough study should be done on the ... The public, already alarmed by reports of asbestos deaths around the country, was fixated on the trial. It was also covered in ...
Medical geology
Lead and other heavy metal exposure resulting from dust and other particulates Asbestos exposure such as amphibole asbestos ...
Silicate mineral
2 Sodium amphibole group Glaucophane - Na2Mg3Al2Si8O22(OH)2 Riebeckite (asbestos) - Na2FeII3FeIII2Si8O22(OH)2 Arfvedsonite - ... Amphibole group Anthophyllite - (Mg,Fe)7Si8O22(OH)2 Cummingtonite series Cummingtonite - Fe2Mg5Si8O22(OH)2 Grunerite - ...
List of minerals
Asbestos (fibrous serpentine- or amphibole minerals) Auerlite (variety of thorite) Avalite (chromian variety of illite) ... series of amphiboles) Howlite Hsianghualite Hubeite Hübnerite Huemulite Humite Huntite Hureaulite Hutchinsonite Huttonite ... amphibole group) Fornacite Forsterite (olivine group) Fougèrite (layered double hydroxide) Fourmarierite Fraipontite ... green mineral either jadeite or nephrite amphibole) Jasper (variety of quartz) Jeffersonite (variety of augite) Kaatialaite ...
List of MeSH codes (D01)
... asbestos MeSH D01.578.725.050.050 - asbestos, amphibole MeSH D01.578.725.050.050.050 - asbestos, amosite MeSH D01.578.725.050. ... asbestos MeSH D01.837.725.700.760.070.050 - asbestos, amphibole MeSH D01.837.725.700.760.070.050.060 - asbestos, amosite MeSH ... asbestos, amosite MeSH D01.524.500.050 - asbestos, serpentine MeSH D01.524.500.850 - talc MeSH D01.552.020.042 - actinium MeSH ... asbestos, amosite MeSH D01.837.725.700.760.535.400 - asbestos, serpentine MeSH D01.837.725.700.760.535.800 - talc MeSH D01.857. ...
Health impact of asbestos
California are known to contain natural amphibole asbestos formations at the surface. The USGS studied amphiboles in rock and ... Asbestos-related diseases have been diagnosed in asbestos workers' family members, and in residents who live close to asbestos ... Asbestos is widely used in roofing materials, mainly corrugated asbestos cement roof sheets and asbestos shingles sometimes ... According to OSHA, "there is no 'safe' level of asbestos exposure for any type of asbestos fiber. Asbestos exposures as short ...
Christopher Booker
Thus, he argues that asbestos, passive smoking and BSE have not been shown to be dangerous. His articles on global warming have ... The risk differential between chrysotile and the two amphibole fibres for lung cancer is thus between 1:10 and 1:50. Walker, ... Booker repeatedly claimed that white asbestos is "chemically identical to talcum powder" and poses a "non-existent" risk to ... Hodgson JT, Darnton A (December 2000). "The quantitative risks of mesothelioma and lung cancer in relation to asbestos exposure ...
Vermiculite
"Libby Asbestos". United States Environmental Protection Agency. Verhovek, Sam Howe (2006-10-11). "Firm Must Pay Asbestos Costs ... both fibrous amphiboles)-in fact, it was formed underground through essentially the same geologic processes as the contaminants ... Pure vermiculite does not contain asbestos and is non-toxic. Impure vermiculite may contain, apart from asbestos, also minor ... Although not all vermiculite contains asbestos, some products were made with vermiculite that contained asbestos until the ...
Asbestos
Amphibole asbestos is banned from trade and use. Vietnam is one of the top 10 asbestos users in the world, with an annual ... Chrysotile asbestos Asbestos fibers Asbestos Blue asbestos (crocidolite), the ruler is 1 cm Blue asbestos, teased to show the ... asbestos) AIB - Asbestos insulating board (AIB) Asbestine Asbestos abatement Asbestos Disease Awareness Organization Medical ... Amphiboles including amosite (brown asbestos) and crocidolite (blue asbestos) were formerly used in many products until the ...
Amphibole
... riebeckite is known as crocidolite or blue asbestos. These are generally called amphibole asbestos. Mining, manufacture and ... Four of the amphibole minerals are among the minerals commonly called asbestos. These are: anthophyllite, riebeckite, ... Amphiboles are minerals of either igneous or metamorphic origin. Amphiboles are more common in intermediate to felsic igneous ... US Geological Survey, Asbestos, accessed 20 July 2015. Nesse 2000, p. 242. "Health Effects of Asbestos". Agency for Toxic ...
Silicate minerals
Riebeckite (asbestos) - Na2FeII3FeIII2Si8O22(OH)2 ... amphibole group. Phyllosilicates. sheets. [Si2nO5n]2n−. micas ... Sodium amphibole group *Glaucophane - Na2Mg3Al2Si8O22(OH)2 ... Amphibole group *Anthophyllite - (Mg,Fe)7Si8O22(OH)2 ...
Mineral
However, asbestos are known carcinogens, and cause various other illnesses, such as asbestosis; amphibole asbestos ( ... Several amphibole mineral species can have an asbestiform crystal habit. These asbestos minerals form long, thin, flexible, and ... as it is less dangerous in terms of health than the amphibole asbestos.[107] ... Finally, the amphiboles are usually hydrated, that is, they have a hydroxyl group ([OH]−), although it can be replaced by a ...
Fiber
Asbestos is the only naturally occurring long mineral fiber. Six minerals have been classified as "asbestos" including ... chrysotile of the serpentine class and those belonging to the amphibole class: amosite, crocidolite, tremolite, anthophyllite ... Mineral fibers can be particularly strong because they are formed with a low number of surface defects, asbestos is a common ...
Riebeckite
Blue asbestos was also used in early gas masks. In the mid-20th century, asbestos was confirmed to be harmful, leading to the ... Riebeckite is a sodium-rich member of the amphibole group of silicate minerals, chemical formula Na2(Fe2+3Fe3+2)Si8O22(OH)2. It ... In 1964 Dr Christopher Wagner discovered an association between blue asbestos and mesothelioma. Crocidolite asbestos was mined ... The fibrous forms of riebeckite are known as crocidolite and are one of the six recognised types of asbestos. Often referred to ...
List of IARC Group 1 carcinogens
... and plants containing them Arsenic and inorganic arsenic compounds1 Asbestos Azathioprine Benzene Benzidine, and dyes ... and in combination with cisplatin and bleomycin Fluoro-edenite fibrous amphibole Formaldehyde Gallium arsenide Helicobacter ...
Silicate minerals
Riebeckite (asbestos) - Na2FeII3FeIII2Si8O22(OH)2 ... Sodium amphibole group *Glaucophane - Na2Mg3Al2Si8O22(OH)2 ... Amphibole group *Anthophyllite - (Mg,Fe)7Si8O22(OH)2 ...
Complete list of encyclopedia topics/A2
Asbestos -- Asbestos/Asbestosis -- Asbjxrn Andersen -- Asbury -- Asbury Lake -- Asbury Park -- Asby -- ASC -- ASC Virus -- ... Amphibole -- Amphibolite -- Amphichroum -- Amphictyonis -- Amphimallon -- Amphineura -- Amphion -- Amphipoda -- Amphipolis -- ...
Agency for Toxic Substances and Disease Registry
The Tremolite Asbestos Registry contains people who lived in or worked in Libby, Montana, while vermiculite was mined there; ... Estimated Effects of Occupational Exposure to Libby Amphibole". Journal of Occupational and Environmental Medicine. 52 (5): 555 ... The purpose of the registry was to monitor the long-term health effects of people in Libby exposed to tremolite asbestos and to ... Registry data was used to conduct the first study of the relationship between asbestos exposure and respiratory problems in ...
Cummingtonite
Amosite is a rare asbestiform variety of grunerite that was mined as asbestos only in the eastern part of the Transvaal ... Manganese also substitutes for (Fe,Mg) within cummingtonite amphibole, replacing B site atoms. These minerals are found in high ... The origin of the name is Amosa, the acronym for the mining company "Asbestos Mines of South Africa". Cummingtonite is commonly ... Cummingtonite (/ˈkʌmɪŋtəˌnaɪt/ KUM-ing-tə-nyte) is a metamorphic amphibole with the chemical composition (Mg,Fe2+ ) 2(Mg,Fe2+ ...
Asbestos Mountains
The mountains were named for the asbestos which was mined in the 20th century and is found as a variety of amphibole called ... which is the source of chrysotile asbestos. List of mountain ranges of South Africa Mining industry of South Africa Asbestos ... The Asbestos Mountains is a range of hills in the Northern Cape province of South Africa, stretching south-southwest from ... Substitutes for asbestos now include ceramic, carbon, metallic and Aramid fibers, such as Twaron or Kevlar. David Goldblatt ...
Taconite
Because these conditions can be triggered by industrial asbestos, which was used in taconite mining and processing, as well as ... The tailings contained 40% of the amphibole group mineral series cummingtonite-grunerite, which may form asbestiform particles ... Hilding and others, "Biological effects of ingested amosite asbestos, taconite tailings, diatomaceous earth and Lake Superior ... District Court judge Miles Lord ruled that the drinking water and Lake Superior must be protected from the asbestos-like ...
List of IARC Group 1 Agents - Carcinogenic to humans
... and plants containing them Arsenic and inorganic arsenic compounds Asbestos Azathioprine Benzene Benzidine, and dyes ... and in combination with cisplatin and bleomycin Fluoro-edenite fibrous amphibole Formaldehyde Gallium arsenide Lindane ...
Merlis Serpentinites
These chlorite schists are cross-cut in places by asbestos veins and coated by chalcedony or quartz. For the Merlis ... and felt-like aggregates of colourless amphiboles (tremolite), talc, anthophyllite and pargasite occur. In foliated ...
Actinolite
... is an amphibole silicate mineral with the chemical formula Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2. The name actinolite ... Actinolite asbestos was once mined along Jones Creek at Gundagai, Australia. Some forms of actinolite are used as gemstones. ... Fibrous actinolite is one of the six recognised types of asbestos, the fibres being so small that they can enter the lungs and ... Like tremolite, asbestiform actinolite is regulated as asbestos. Actinolite is commonly found in metamorphic rocks, such as ...
Talc
The frequent co-location of talc deposits with asbestos may result in contamination of mined talc with white asbestos, which ... Talc dominantly forms from the metamorphism of magnesian minerals such as serpentine, pyroxene, amphibole, and olivine, in the ... There are six varieties of asbestos; the most common variety in manufacturing, white asbestos, is in the serpentine family. ... Talc containing asbestos is classified as a group 1 agent (carcinogenic to humans), talc use in the perineal classified as ...
South Pass greenstone belt
Some minor copper, silver, tungsten, asbestos, beryl (aquamarine), ruby including a diamond have also been reported within the ... layers of magnetite and metachert and varying amounts of amphibole. The average iron content in the Atlantic City area is about ...
IRIS Toxicological Review of Libby Amphibole Asbestos (Final Report) | IRIS | US EPA
Libby Amphibole asbestos is a complex mixture of amphibole fibers, both mineralogically and morphologically. The mixture ... IRIS Toxicological Review of Libby Amphibole Asbestos (External Review Draft) * IRIS Toxicological Review of Libby Amphibole ... The Libby Amphibole Asbestos assessment was initiated in 2007. It was nominated for assessment by the IRIS Program because it ... IRIS Toxicological Review of Libby Amphibole Asbestos (Final Report). Overview. EPA has finalized the, Toxicological Review of ...
NIOSHTIC-2 Publications Search - 20033941 - Asbestos-related cancer and the amphibole hypothesis - Stayner and colleagues...
Langer and Nolan suggested that we failed to present the amphibole hypothesis in a developmental perspective. Our objective was ... The scope of the amphibole hypothesis has been confusing to many, scientists and laypeople alike. We ... express several criticisms of our recent review of the amphibole hypothesis. ... Asbestos-dust; Asbestos-fibers; Asbestosis; Occupational-exposure; Occupational-hazards; Exposure-assessment; Workplace-studies ...
EPA: 'Most Significant Sources of Libby Amphibole Asbestos Have Been Removed'
Home , Resources , The Synergist , Industry News , EPA: Most Significant Sources of Libby Amphibole Asbestos Have Been Removed ... EPA: Most Significant Sources of Libby Amphibole Asbestos Have Been Removed Published December 10, 2014 ... its cleanups of Libby and Troy-two towns in Montana that had significant and uncontrolled sources of Libby amphibole asbestos ( ... EPAs outdoor air testing for LAA in Libby and Troy indicates that asbestos air concentrations are now equivalent to those ...
Size and shape characteristics of airborne amphibole asbestos and amphibole cleavage fragments
Amphibole asbestos in Africa and Australia: geology, health hazard and mining legacy | Journal of the Geological Society
... chrysotile or white asbestos). Most amphibole asbestos was mined as crocidolite (blue) and amosite (brown) from Precambrian ... Although asbestiform amphiboles only contributed less than 6% of industrial asbestos worldwide, they have proved more toxic as ... Amphibole asbestos in Africa and Australia: geology, health hazard and mining legacy. WES GIBBONS ... Amphibole asbestos in Africa and Australia: geology, health hazard and mining legacy. WES GIBBONS ...
Differentiating Amphibole Asbestos from Non-Asbestos in a Complex Mineral Environment - RJ Lee Group, Inc. (RJLG)
Van Orden, D.R., K. A. Allison and R. J. Lee, "Differentiating Amphibole Asbestos from Non-Asbestos in a Complex Mineral ... construction materials for asbestos content often results in the misidentification of non-asbestos amphi- bole particles as ... These errors have received widespread publicity in the media (such as the asbestos-in-crayons story) and have caused unwar- ... The primary cause of these errors has been a poor understanding of mineralogy and analytical techniques among the many asbestos ...
asbestos-amphibole
Scanning Electron Microscopy and Transmitted Electron Backscatter Diffraction Examination of Asbestos Standard Reference...
... a suite of amphibole minerals of varying morphologies to determine if there is a correlation between mineral habit (i.e., ... This paper explores the utility of tEBSD for characterization of asbestiform particles from reference asbestos materials, ... Scanning Electron Microscopy and Transmitted Electron Backscatter Diffraction Examination of Asbestos Standard Reference ... Scanning Electron Microscopy and Transmitted Electron Backscatter Diffraction Examination of Asbestos Standard Reference ...
Asbestos - Wikipedia
Amphibole group[edit]. Amphiboles including amosite (brown asbestos) and crocidolite (blue asbestos) were formerly used in many ... History of Asbestos, Asbestos.com, retrieved 2016-04-07. *^ a b "Asbestos in the home booklet. Wrekin housing trust" (PDF). ... brown asbestos, white asbestos, and green asbestos.[3]. Asbestos mining existed more than 4,000 years ago, but large-scale ... Other regulated asbestos minerals, such as tremolite asbestos, CAS No. 77536-68-6, Ca2Mg5Si8O22(OH)2; actinolite asbestos, CAS ...
In vitro determinants of asbestos fiber toxicity: effect on the relative toxicity of Libby amphibole in primary human airway...
Blake DJ, Bolin CM, Cox DP, Cardozo-Pelaez F, Pfau JC: Internalization of Libby amphibole asbestos and induction of oxidative ... In vitro determinants of asbestos fiber toxicity: effect on the relative toxicity of Libby amphibole in primary human airway ... Amphibole samples. Libby amphibole (LA) was collected from the Rainy Creek Complex near Libby, Montana in the year 2000 (LA2000 ... All mineral types were included in this analysis such that both amphibole and non-amphibole particles were counted. Complete ...
asbestos Equipment available in Liechtenstein | Environmental XPRT
Results for asbestos equipment from ABC, ABCOV, Air-O-Cell and other leading brands. Compare and contact a supplier serving ... AMOSITE - Amphibole Asbestos. Straight, brittle Amosite fibers, light gray to pale brown (also known as "brown asbestos") are ... asbestos sample equipment , asbestos sampling equipment , asbestos fiber equipment , sample asbestos equipment , asbestos ... asbestos removal equipment , asbestos waste equipment , asbestos particulate equipment , asbestos hazard equipment ...
NIOSH eNews - February 2015 | NIOSH | CDC
Asbestos Use
Asbestos has long been praised for its fire and heat resistant fibers, and its subsequent usefulness in construction and other ... Crocidolite, or blue asbestos, is one of the more common types of amphibole asbestos present in buildings, along with amosite ... Comparison of Amphibole and Chrysotile Asbestos. Chrysotile asbestos is believed by some to be the most dangerous form of ... When is Asbestos a Hazard?. Asbestos is believed to only be a significant hazard when it has become airborne. If asbestos is ...
Mesothelioma Clinical Trial Opens with High Expectations
Research Pinpoints Libby Amphibole Disease. * February 26, 2018. Snickers Ad Spoofs Asbestos in Sports Illustrated Swimsuit ... 2018 by Asbestos.com and The Mesothelioma Center. All rights reserved. 1 S. Orange Ave., Suite 301, Orlando, FL 32801 ... Asbestos.com is sponsored by law firms. This website and its content may be deemed attorney advertising. Prior results do not ... Patrick Ma, lead investigator at WVU Cancer Center, told Asbestos.com. "Yes, the expectations for this trial are high." ...
EPA finalises IRIS review on inhalation of Libby amphibole asbestos - Bibra toxicology advice & consulting
EPA finalises IRIS review on inhalation of Libby amphibole asbestos. Home » EPA finalises IRIS review on inhalation of Libby ... Comments Off on EPA finalises IRIS review on inhalation of Libby amphibole asbestos ... Toxicological review of Libby amphibole asbestos in support of summary information on the Integrated Risk Information System ( ... describing the scientific basis for the human health hazard and dose-response assessments of inhaled Libby amphibole asbestos ( ...
CSIRO PUBLISHING | Australian Journal of Chemistry
CISDOC - Asbestos-related pleural disease due to tremolite associated with progressive loss of lung function: Serial...
tremolite asbestos; USA; pleural thickening; amphibole; vermiculite; radiological changes; long-term exposure; respiratory ... Montana; asbestos; asbestos mining; pulmonary function; pleural diseases. Descriptors (secondary). ... Asbestos-related pleural disease due to tremolite associated with progressive loss of lung function: Serial observations in 123 ... Patients who had occupational and non-occupational exposure to asbestos in Libby were evaluated for progressive loss of ...
29 CFR § 1926.1101 - Asbestos. | CFR | US Law | LII / Legal Information Institute
... anthophyllite asbestos, tremolite asbestos and actinolite asbestos. These are the only amphibole minerals that have been ... Asbestos includes chrysotile, amosite, crocidolite, tremolite asbestos, anthophyllite asbestos, actinolite asbestos, and any of ... Asbestos includes chrysotile, cummingtonite-grunerite asbestos (amosite), anthophyllite asbestos, tremolite asbestos, ... Asbestos includes chrysotile, crocidolite, amosite (cummingtonite-grunerite asbestos), tremolite asbestos, actinolite asbestos ...
Asbestos - wikidoc
Amphibole group. Five types of asbestos are found in the amphibole group: amosite, crocidolite, anthophyllite, tremolite, and ... Other regulated asbestos minerals, such as tremolite asbestos, CAS No. 77536-68-6, Ca2Mg5Si8O22(OH)2; actinolite asbestos (or ... 12001-28-4 is an amphibole from Africa and Australia. It is the fibrous form of the amphibole riebeckite. Blue asbestos is ... File:Blue asbestos.jpg Blue asbestos (crocidolite) from Wittenoom, Western Australia. The ruler is 1 cm. File:Blue asbestos ( ...
Asbestos Toxicity: What Is Asbestos | Environmental Medicine | ATSDR
Asbestos fibers are classified by mineral structure as serpentine or amphibole.. Table 1. Types of Asbestos. Serpentine. ... There are two classes of asbestos: serpentine and amphibole.. *Asbestos is now used much less widely in the United States and ... www.epa.gov/asbestos/asbestos-laws-and-regulations#phaseoutexternal icon.. Research showing a clear link between asbestos ... However, asbestos is still in use in some products today and asbestos remains in many older buildings [NIOSH 2011a]. ...
ATSDR - Asbestos Expert Panel - Premeeting Comments
... that occurred among a panel of seven experts surrounding the science of how fiber length relates to toxicity of asbestos and ... Asbestos. D,0.1µm. Mesothelioma. Dodson et al, 1990. Autopsy of lung and pleural tissue from former shipyard workers. Amphibole ... Data from the asbestos literature. Clinical analysis of human pleural tissue. Asbestos. L,2µm;D,0.03µm. Pleural plaques. ... Tremolite asbestos is an amphibole that can cleave resulting in short squatty cleavage fragments depending on crystalline plain ...
Research Pinpoints Libby Amphibole Disease
Amphibole Asbestos Still Prevalent. The vermiculite and amphibole mix for decades was shipped throughout America for processing ... Flores said Libby amphibole doesnt lead to the same kind of asbestosis as chrysotile - the more commonly used type of asbestos ... U.S. Asbestos Imports Surge in August, Report Finds Canada Announces Asbestos Ban with Exemptions Government Report: EPA Failed ... The disease stems from amphibole asbestos and its needle-shaped fibers. Almost all of it was mined in or near Libby, Montana, ...
asbestos | Origin and meaning of asbestos by Online Etymology Dictionary
... from Greek asbestos, literally… See definitions of asbestos. ... ASBESTOS Meaning: quicklime (which burns when cold water is ... Definitions of asbestos from WordNet. asbestos. (. n.. ). a fibrous amphibole. ; used for making fireproof articles. ; inhaling ... from Latin asbestos quicklime (which burns when cold water is poured on it), from Greek asbestos, literally ... asbestos (n.). 1650s, earlier albeston, abestus (c. 1100), name of a fabulous stone, which, set afire, could not be ...
Potential Health and Environmental Effects of Hydrofracking in the Williston Basin, Montana
History of Asbestos - Learn About Asbestos History & Its Uses
The use of asbestos and exposure to it has serious health consequences. Learn more about the history of asbestos and the ... Humans have used asbestos for at least 10,000 years for just about everything. Ranging from cooking pots to insulating ... Amphibole Asbestos. Microscopically, amphibole asbestos fibers appear as hard spiky crystals. There was a little twist and bend ... Home / Asbestos / History of Asbestos. History of Asbestos Use. Asbestos had a long history of production and devastation ...
Search | Britannica
Asbestos (mineral) Reports of the harmful effects of asbestos fibres on human health caused increasing concern beginning in the ... from the article Amphibole The common crystallographic habit of amphiboles is acicular or prismatic; however, most of the ... Asbestosis, also called white lung, lung disease that is caused by the prolonged inhalation of asbestos fibres. A type of ... Amosite, a variety of the silicate mineral cummingtonite, which is a source of asbestos (see cummingtonite). ...
ATS, AJRCCM, American Thoracic Society, medical journal,
asbestos, asbestosis, mesothelioma, lung cancer, interstitial...
... but there is no justification for assuming that their presence in an asbestos-exposed population is always related to asbestos ... Egilman D. Asbestos screenings. Amer J Indust Med 2002;42:163.. The following article shows that the film triad method (PA, ... Asbestos: Why we have to defend against screened cases. Mealeys Litigation Report, November 12, 2003;18:1-16. * Bernstein DB. ... Cases of alleged asbestos-related disease: a radiologic re-evaluation. J Occup Med 1990;32:1088-90. *Houser PG: Affadavit in ...
Vermiculite May Pose Asbestos Hazard | New Society Publishers
Consumer Product Safety Commission: Asbestos: Risk and Assessment. Environmental Protection Agency: Libby Amphibole Asbestos ... Today, products which contain more than one percent asbestos are considered asbestos-containing materials (ACMs) and are banned ... Vermiculite May Pose Asbestos Hazard. The mineral vermiculite is an extremely effective soil conditioner for moisture retention ... When asbestos exists within a solid construction compound, it poses no true hazard as the fibers cannot be released. It is only ...
Drillpress Operators Exposed to Asbestos - Find Out How
Learn more about the serious health risks that drill press operators may have due to asbestos exposure while on the job. ... If youre a drill press operator who developed mesothelioma from asbestos exposure in your workplace, you might be eligible for ... Amphibole: This form of asbestos is far more deadly. A drill press operator exposed to any amount of amphibole asbestos for any ... [email protected]asbestos.net. © 2019 Mesothelioma Justice Network at Asbestos.net - The information provided by www.asbestos.net is not ...
FibersTypes of asbestosChrysotile asbestosActinoliteAnthophylliteForms of asbestosAsbestosisMineralsType of asbestosWhite asbestosBlue asbestosLibby AmphiboleBrown asbestosFibresDiseasesUnprotected asbestos exposureTremolite asbestosPleuralBuilding insulationLung cancerInhalationDustSouth AfricaFiberExposuresFibreRiebeckite1970sOccupationalAirborneCommonly1980sTalcDepositsRisksParticlesEffects of asbestosAssociated with vermiculiteCarcinogenicVarietiesMesotheliomaCommerciallyNaturally occurriHazardousLungs19th centurySerpentine or amphiboleCarcinogenCaused by asbestos exposureHealthForm oblique cleavage planesMicroscopicClasses of asbestosUses of asbestosHazards of asbestosWidespreadEnvironmental ProtecFoundToxicityVermiculite oreSilicateTransmission electron mRegulationsHornblende
Fibers126
- Libby Amphibole asbestos is a complex mixture of amphibole fibers, both mineralogically and morphologically. (epa.gov)
- 2003). Exposure to Libby Amphibole asbestos results in the same types of adverse health effects as are seen with exposure to other amphibole mineral fibers. (epa.gov)
- Epidemiologic studies of workers exposed to Libby Amphibole asbestos fibers indicate increased mortality from lung cancer, mesothelioma, asbestosis, and other nonmalignant respiratory diseases (McDonald et al. (epa.gov)
- Extending the TEM methods designed for the evalua- tion of atmospheres in which any primary mineral fibers present are derived from a commercial asbestos fiber is a challenging task. (rjlg.com)
- Improper analysis of non- construction materials for asbestos content often results in the misidentification of non-asbestos amphi- bole particles as asbestos fibers. (rjlg.com)
- Since 1972, when the US Occupational Health and Safety Administration established the first limits on occupational exposure to asbestos fibers, numerous analytical methods employing several microscopy techniques have been developed to identify a group of minerals defined by legislation as asbestos. (rjlg.com)
- When asbestos is used for its resistance to fire or heat, the fibers are often mixed with cement or woven into fabric or mats. (wikipedia.org)
- Prolonged inhalation of asbestos fibers can cause serious and fatal illnesses including lung cancer , mesothelioma , and asbestosis (a type of pneumoconiosis ). (wikipedia.org)
- Fine, silky, flexible white Chrysotile fibers (also known as "white asbestos") make up 80% to 90% of all asbestos contained in buildings in the United States. (environmental-expert.com)
- Straight, brittle Amosite fibers, light gray to pale brown (also known as "brown asbestos") are most commonly used in thermal system insulation and the second most prevalent type of asbestos found in building materials. (environmental-expert.com)
- Asbestos is a natural mineral that has long been praised for its fire and heat resistant fibers, and its subsequent usefulness in construction and other industrial efforts. (mesotheliomasymptoms.com)
- The first is the amphibole form, which consists of thin fibers that come together to form a chain structure. (mesotheliomasymptoms.com)
- When the fibers are disturbed, asbestos becomes airborne. (mesotheliomasymptoms.com)
- Friable asbestos" is a term used to describe asbestos fibers which can be converted to dust when pressure is applied to them. (mesotheliomasymptoms.com)
- Harder fibers which are not subject to pressure are known as "non-friable asbestos. (mesotheliomasymptoms.com)
- However, these fibers are still able to be converted into "friable asbestos" through the use of grinding machines or sanding, making them a perennial threat. (mesotheliomasymptoms.com)
- Chrysotile asbestos is believed by some to be the most dangerous form of asbestos, as it has long, thin fibers which scientists believe allows them to remain in the lung tissue better than the shorter fibers of amphibole forms. (mesotheliomasymptoms.com)
- Although amphibole forms more easily penetrate lung tissue deeply, these fibers are also more easily expelled, the USGS explains. (mesotheliomasymptoms.com)
- The disease stems from amphibole asbestos and its needle-shaped fibers. (asbestos.com)
- The inhalation of asbestos fibers can cause serious illnesses, including mesothelioma . (wikidoc.org)
- Asbestiform amphibole may also occur as soft friable fibers but some varieties such as amosite are commonly straighter. (wikidoc.org)
- All forms of asbestos are fibrillar in that they are composed of fibers with widths less than 1 micrometre that occur in bundles and have very long lengths. (wikidoc.org)
- Asbestos fibers are classified by mineral structure as serpentine or amphibole. (cdc.gov)
- The Agency for Toxic Substances and Disease Registry (ATSDR) is holding a panel discussion to review and discuss health effects associated with asbestos and synthetic (man-made) vitreous fibers (SVFs), especially those of less than 5 microns in length. (cdc.gov)
- Recent events have highlighted a need to further explore the potential for health effects from exposure to biopersistent fibers, specifically asbestos and some SVFs. (cdc.gov)
- Significant toxicology and occupational health research has focused on asbestos fibers and SVF greater than five microns in length, however, it seems that much less is known about the potential health effects of smaller fibers. (cdc.gov)
- ATSDR is convening this panel to gain a greater understanding of asbestos and SVF toxicity, especially as it relates to fibers less than 5 microns in length. (cdc.gov)
- In asking these questions, ATSDR seeks a discerning review of the fate of inhaled asbestos and vitreous fibers less than 5 microns in length. (cdc.gov)
- The second day of the meeting will be devoted to critical assessment of the health effects that can be justifiably attributed to asbestos and vitreous fibers and to identifying critical data gaps and research needs that would further enlighten this subject (Topics #2 and #3). (cdc.gov)
- Its unique chemical properties made asbestos fibers one of the most popular manufacturing additives the world has ever seen. (asbestos.net)
- Archaeological evidence supports that clay cooking pots in Scandinavia dated 8,000 B.C. contained asbestos fibers. (asbestos.net)
- Romans weaved asbestos fibers into napkins and tablecloths. (asbestos.net)
- Mixing asbestos fibers with other materials seemed to improve products in every way. (asbestos.net)
- There were dire warnings about health risks from long-term exposure to asbestos fibers. (asbestos.net)
- Physicians and scientists were well aware of what happens when asbestos fibers enter human lungs. (asbestos.net)
- When asbestos exists within a solid construction compound, it poses no true hazard as the fibers cannot be released. (newsociety.com)
- Drilling into asbestos-containing materials released harmful fibers into the air where they were continuously inhaled by unsuspecting workers. (asbestos.net)
- Continually disturbing asbestos materials resulted in a steady release of tiny asbestos fibers into their surrounding work environment. (asbestos.net)
- Asbestos fibers settled on drill press operators' clothes, tools and personal equipment such as lunch boxes and packs. (asbestos.net)
- These unsuspecting workers then carried asbestos-contaminated materials home, exposing their families and friends to the hazardous fibers as well. (asbestos.net)
- Asbestos are crystallized silicate minerals that form fibers with different structures and characteristics. (bioportfolio.com)
- Asbestos fibers are very durable and can tolerate very high temperatures. (bioportfolio.com)
- Asbestos is a group of six naturally occurring silicate minerals made up of thin, microscopic fibers. (mesothelioma.com)
- As a result, talc and vermiculite can become contaminated with asbestos fibers. (mesothelioma.com)
- This process removes asbestos fibers for use. (mesothelioma.com)
- Asbestos manufacturers can then incorporate asbestos fibers into a wide range of products. (mesothelioma.com)
- Amphibole fibers are short, straight, needle-like and stiff. (mesothelioma.com)
- Asbestos minerals consist of thin, separable fibers that have a parallel arrangement. (cdc.gov)
- Amphibole asbestos fibers are generally brittle and often have a rod- or needle-like shape, whereas chrysotile asbestos fibers are flexible and curved. (cdc.gov)
- Asbestos fibers do not have any detectable odor or taste. (cdc.gov)
- Since asbestos fibers may cause harmful health effects in people who are exposed, all new uses of asbestos have been banned in the United States by the EPA. (cdc.gov)
- Asbestos fibers do not evaporate into air or dissolve in water. (cdc.gov)
- However, pieces of fibers can enter the air and water from the weathering of natural deposits and the wearing down of manufactured asbestos products. (cdc.gov)
- Asbestos fibers are not able to move through soil. (cdc.gov)
- Asbestos fibers may break into shorter pieces or separate into a larger number of individual fibers as a result of physical processes. (cdc.gov)
- Today, areas surrounding the abandoned vermiculite processing/ mining facilities and much of the town of Libby are contaminated with these asbestos fibers, contributing to an outbreak of asbestos-related diseases in the Libby population. (cdc.gov)
- Trees in Libby and in forested areas surrounding the abandoned mine have accumulated amphibole asbestos fibers on their bark surface, providing for inhalational exposures. (cdc.gov)
- Trees as reservoirs for amphibole fibers in Libby, Montana. (cdc.gov)
- Gravimetric reduction of a tree core sample did not indicate the presence of amphibole fibers. (cdc.gov)
- However, transmission electron microscopy analysis of bark samples collected near the vermiculite mine yielded substantial amphibole fiber concentrations ranging from 41 million to 530 million fibers/g of bark. (cdc.gov)
- A conversion of these mass-based concentrations to areal concentrations (to reflect surface area contamination) revealed concentrations in excess of 100 million amphibole fibers/cm2. (cdc.gov)
- These preliminary results suggest that trees in the Libby valley and along vermiculite shipping corridors can serve as reservoirs for amphibole fibers, and that a potential for exposure exists for those who harvest contaminated wood. (cdc.gov)
- Asbestosis is long term inflammation and scarring of the lungs due to asbestos fibers . (wikipedia.org)
- Asbestosis is caused by breathing in asbestos fibers. (wikipedia.org)
- [2] All types of asbestos fibers are associated with an increased risk. (wikipedia.org)
- The cause of asbestosis is the inhalation of microscopic asbestos mineral fibers suspended in the air. (wikipedia.org)
- Asbestosis is the scarring of lung tissue (beginning around terminal bronchioles and alveolar ducts and extending into the alveolar walls) resulting from the inhalation of asbestos fibers. (wikipedia.org)
- There are two types of fibers: amphibole (thin and straight) and serpentine (curly). (wikipedia.org)
- All forms of asbestos fibers are responsible for human disease as they are able to penetrate deeply into the lungs. (wikipedia.org)
- When such fibers reach the alveoli (air sacs) in the lung, where oxygen is transferred into the blood, the foreign bodies (asbestos fibers) cause the activation of the lungs' local immune system and provoke an inflammatory reaction dominated by lung macrophages that respond to chemotactic factors activated by the fibers. (wikipedia.org)
- Due to the asbestos fibers' natural resistance to digestion, some macrophages are killed and others release inflammatory chemical signals , attracting further lung macrophages and fibrolastic cells that synthesize fibrous scar tissue, which eventually becomes diffuse and can progress in heavily exposed individuals. (wikipedia.org)
- Some asbestos fibers become layered by an iron-containing proteinaceous material ( ferruginous body ) in cases of heavy exposure where about 10% of the fibers become coated. (wikipedia.org)
- Asbestos fibers typically become trapped in the lungs and accumulate over several years, according to WebMD. (reference.com)
- Judge Hodges disagreed, saying Garlock's gaskets contained relatively harmless chrysotile asbestos contained in polymer and were unlikely to provide enough fibers to cause mesothelioma. (forbes.com)
- Breathing in asbestos fibers can lead to developing pleural mesothelioma. (pleuralmesothelioma.com)
- Asbestos fibers may alter immune function in a way that allows mesothelioma cancer cells to develop unchecked by normal immunity. (pleuralmesothelioma.com)
- The individual asbestos fibers that are released into the air are microscopic. (howstuffworks.com)
- The ability of asbestos fibers to split into smaller and smaller strands allows asbestos fibers to enter the human body through the lungs and literally slide into and between the cells of soft tissues. (bloggernews.net)
- There are two basic groups of asbestos fibers. (bloggernews.net)
- The serpentine group is asbestos which forms somewhat curly fibers which are long and supple. (bloggernews.net)
- The amphibole group forms fibers which are straighter and stiffer. (bloggernews.net)
- Differential Counting: The term applied to the practice of excluding certain kinds of fibers from a phase contrast asbestos count because they are not asbestos. (osha.gov)
- Sealing Encapsulant: This is a product which can be applied, preferably by spraying, onto an asbestos surface which will seal the surface so that fibers cannot be released. (osha.gov)
- Such projects can disturb the fibers and may cause more harm than leaving undamaged asbestos in place, the study said. (edweek.org)
- According to the study, the major flaw of the laws designed to control asbestos in schools is their requirement that two different types of asbestos fibers be treated identically. (edweek.org)
- Amphibole fibers, the authors claim, are more likely to be deadly than chrysotile fibers, which are commonly found in products used in schools and are thought to be less likely to penetrate the lung. (edweek.org)
- Composed of soft and flexible fibers, asbestos is a natural occurring mineral known for its heat-resistance and its imperviousness to electricity and corrosion, These very properties make asbestos highly useful as an insulator. (egyptflowers.net)
- In ancient times, Asbestos' long fibers and heat-resistant properties allowed it to be used as wicks for lamps and candles. (egyptflowers.net)
- The fibers for this type of asbestos are jagged and straight. (egyptflowers.net)
- The fibers of this type of asbestos, as the name would suggest, are curly and snake-like. (egyptflowers.net)
- The main reason why asbestos is so dangerous to the health is because the fibers cannot be broken down when they are inhaled into the lungs or become stuck in other tissues. (egyptflowers.net)
- For centuries, the iron ore industry has been a leading industry in the state, exposing workers to harmful suspended particles such as silica dust and airborne asbestos fibers. (mesotheliomatreatmentcenters.org)
- Serpentine is a variety of asbestos thats structure is layered with curly fibers. (mesotheliomacenter.org)
- Amphibole asbestos has long, chain like structures that has sharp fibers and can be inhaled easily. (mesotheliomacenter.org)
- Its classification as amphibole asbestos means that it is more dangerous because it has sharper fibers that break off easily and subsequently are easier to inhale. (mesotheliomacenter.org)
- Amosite - Amosite asbestos or "brown" asbestos is typically identified by its brown color and straight fibers. (mesotheliomacenter.org)
- Anthophyllite - Anthophyllite asbestos is usually brown and yellow in color and its make-up of long sharp fibers places it in the amphibole category of asbestos. (mesotheliomacenter.org)
- Chrysotile - Chrysotile asbestos is the most common form of asbestos used and it the only kind that is categorized as serpentine asbestos because if its curly fibers. (mesotheliomacenter.org)
- The curly fibers are not as easy to inhale and because of this, some think that chrysotile is "safer" than other types of asbestos. (mesotheliomacenter.org)
- Its bluish fibers are the thinnest and finest fibers of all other asbestos types and usually are the sharpest and longest. (mesotheliomacenter.org)
- In towns like Wittenoom, Australia, almost 18 percent of those who mined the blue asbestos died from asbestos cancer, and its airborne fibers caused Wittenoom to be completely taken off the map. (mesotheliomacenter.org)
- Tremolite - Tremolite asbestos is also considered one of the most deadly forms of asbestos due to its very sharp, thin, needle-like fibers that can be easily inhaled. (mesotheliomacenter.org)
- Asbestos is a family of fibrous minerals which are known to cause lung cancer, mesothelioma, and other serious respiratory related illnesses when the fibers are inhaled. (eurekalert.org)
- In this case, it was a geological confluence of groundwater interacting with rock salt and a cooling magma body deep below earth's surface to form the fibers and create this type of asbestos, said Brenda Buck, a professor of geology at UNLV and co-researcher of the study. (eurekalert.org)
- This disease occurs when asbestos fibers wear away at the lung and cripple lung function. (sokolovelaw.com)
- Asbestos fibers can also cause fluid and plaque buildup over time. (sokolovelaw.com)
- For example, asbestosis may lead to a higher risk of lung cancer, as the asbestos fibers cause more damage over time. (sokolovelaw.com)
- Asbestosis , or diffuse pulmonary fibrosis, is a non-cancerous lung disease caused by the inhalation of asbestos fibers. (sokolovelaw.com)
- When asbestos fibers get stuck in the lung, they cause damage and scarring. (sokolovelaw.com)
- Long-term deterioration from asbestos fibers harden the affected person's lung. (sokolovelaw.com)
- Asbestos fibers are microscopic, making them impossible to remove. (sokolovelaw.com)
- Once this happens and the asbestos has been disturbed, asbestos fibers can be found in the air and it may stay there for years. (diamondcertified.org)
- :284-290 Basically, when an unfortunate person inhales asbestos dust, microscopic mineral fibers become trapped in their lungs and cause inflammation, scarring, and eventually genetic damage to the body's cells. (rationalwiki.org)
- Artificial snow commonly contained asbestos fibers before the 1980s phase-out happened. (rationalwiki.org)
- NIOSH explains that Libby amphibole is a complex mixture of amphibole fibers that primarily includes tremolite, winchite, and richterite fibers. (aiha.org)
- The agency stresses that exposure to Libby amphibole results in the same types of adverse health effects that are seen with exposure to other asbestos fibers, including lung cancer, mesothelioma, and asbestosis. (aiha.org)
- Agency staff also reviewed the respiratory protection program and collected air samples for asbestos and total fibers. (aiha.org)
- For asbestos, the OSHA permissible exposure limit, the NIOSH recommended exposure limit, and the ACGIH threshold limit value are 0.1 fibers per cubic centimeter of air. (aiha.org)
- It is also very likely that the greatest potential for exposure to asbestos fibers would be during the fire line construction and mop-up tasks, as these activities have the greatest direct disruption of soil. (aiha.org)
- These same tasks were associated with the most asbestos fibers detected in the air samples collected by NIOSH. (aiha.org)
- Global asbestos consumption has declined significantly since the 1970s, when product manufacturers began using asbestos substitutes, such as aramid fiber, cellulose fiber, polyvinyl alcohol fibers or wollastonite, and alternative products, such as aluminum siding, ductile iron and polyvinyl chloride pipe, fiberglass shingles, metallic disk brake pads and mineral wool insulation. (earthmagazine.org)
- Lung ailments were common to anyone who worked with asbestos fibers. (environmentalchemistry.com)
- ATSDR also recommends that EDUHSD perform confirmatory classroom sampling to ensure that classrooms remain free of asbestos fibers. (cdc.gov)
- The crystal formation of asbestos is in the form of long thin fibers. (nemmar.com)
- If you nevertheless choose to take the samples yourself, take care not to release asbestos fibers into the air or onto yourself. (nemmar.com)
- The water/detergent mist will reduce the release of asbestos fibers. (nemmar.com)
Types of asbestos17
- [13] Chrysotile is more flexible than amphibole types of asbestos, and can be spun and woven into fabric. (wikipedia.org)
- [1] Chrysotile, along with other types of asbestos, has been banned in dozens of countries and is only allowed in the United States and Europe in very limited circumstances. (wikidoc.org)
- There are other types of asbestos, like the Chrysotile, that are more commonly found as veins within serpentine rock. (egyptflowers.net)
- The Asbestos Hazard Emergency Response Act of 1986 though legally identifies 6 types of asbestos which can be classified under two categories: Amphibole and Serpentine. (egyptflowers.net)
- Exponent has considerable experience in various aspects of asbestos-related research, including expertise in the disciplines needed to evaluate health risks associated with different types of asbestos exposures. (exponent.com)
- The three most commonly used types of asbestos fibres are chrysotile (95% of all usage), crocidolite and amosite. (ohsrep.org.au)
- There are six different types of asbestos that occur naturally throughout the world. (mesotheliomacenter.org)
- As one of the least common types of asbestos that has been found and used, anthophyllite is mostly composed of magnesium and iron. (mesotheliomacenter.org)
- Chrysotile is more flexible that other types of asbestos and can be woven into fabrics. (mesotheliomacenter.org)
- Five types of asbestos are found in the amphibole group. (ehso.com)
- The remaining three types of asbestos in the amphibole group are: a nthophyllite, tremolite, and actinolite . (ehso.com)
- The GSA presentation will focus on the discovery of types of asbestos that geologists call fibrous iron sodium amphiboles and fibrous actinolite in Clark County, Nevada, and the geological settings that caused the unusual asbestos formation, said Metcalf. (eurekalert.org)
- however, some issues, including the relative hazards of different types of asbestos and whether there is a safe level of exposure to any of them, remain in scientific dispute. (bmj.com)
- Both the medical and scientific communities worldwide generally agree that there are no safe types of asbestos and that there is no safe level of exposure to asbestos. (hubpages.com)
- The three most common types of asbestos are: a) chrysotile b) amosite, and c) crocidolite. (nemmar.com)
- The division between the two types of asbestos is based upon the crystalline structure. (nemmar.com)
- Several organizations, such as the International Agency for Research on Cancer (IARC), the Occupational Safety and Health Administration (OSHA) and the National Toxicology Program (NTP), concur that all types of asbestos cause several types of cancer (lung cancer, pleural mesothelioma and peritoneal mesothelioma) ( INSPQ, 222 ). (inspq.qc.ca)
Chrysotile asbestos19
- First group is only one type: chrysotile asbestos. (environmental-expert.com)
- The USGS reports that as late as 2003, 4,650 tons of chrysotile asbestos was used in the United States. (mesotheliomasymptoms.com)
- [4] Tremolite often contaminates chrysotile asbestos, thus creating an additional hazard. (wikidoc.org)
- Chrysotile asbestos is the only serpentine type. (mesothelioma.com)
- For information on the safe use of chrysotile asbestos, refer to "Safe Use of Chrysotile: A Manual of Preventive and Control Measures. (astm.org)
- Serpentine asbestos is sometimes called white asbestos or chrysotile asbestos. (cancer.ca)
- Chrysotile asbestos is currently the most commonly used form of asbestos in the world. (cancer.ca)
- Comparison of Calidria chrysotile asbestos to pure tremolite: final results of the inhalation biopersistence and histopathology examination following short-term exposure. (curehunter.com)
- Among modern forms of asbestos found in consumer or industrial products, chrysotile asbestos is in the serpentine group and tremolite, amosite, crocidolite, actinolite and anthophyllite are in the amphibole group. (bloggernews.net)
- Chrysotile asbestos is the most commonly seen form, and is usually used for textiles and commercial products. (bloggernews.net)
- Australian fibro sheeting contained amphibole as well as chrysotile asbestos until the mid 1980s. (mja.com.au)
- Objective To confirm the association between exposure to chrysotile asbestos and lung cancer risk and to demonstrate the combined effect of smoking and asbestos exposure. (bmj.com)
- Conclusions These results confirm the strong association between exposure to chrysotile asbestos and lung cancer risk, and support an interactive effect of asbestos exposure and smoking which is more than additive. (bmj.com)
- This nested case-control study conducted in textile workers suggests a strong association between exposure to chrysotile asbestos and lung cancer risk. (bmj.com)
- Many countries, including Japan, have banned the production and use of asbestos, whereas some other countries, including China, continue to produce and use huge amounts of chrysotile asbestos in construction materials. (bmj.com)
- Lung cancer in chrysotile asbestos workers: analyses based on the two-stage clonal expansion model. (cdc.gov)
- The current state of knowledge leads to the conclusion that chrysotile asbestos is a human carcinogen and as a result, all the preventive and protective measures for the health of workers and the public must be enforced. (inspq.qc.ca)
- The occupational exposure limit for chrysotile asbestos (1 fibre/ml) currently in force in Québec ( 2 ) is 100 times higher than the one prevailing in the Netherlands and in Switzerland ( 3 ) and it is ten times higher than the one adopted by many western countries and other Canadian provinces ( 4 ). (inspq.qc.ca)
- Consequently, considering first, that the results of the exposure measurements taken on Québec construction sites show exceedances of the exposure limit for chrysotile asbestos in 43 % of cases ( INSPQ, 1213 ) and second, that the regulations are not always applied, it follows that workers are still at risk of developing asbestos-related diseases. (inspq.qc.ca)
Actinolite13
- Asbestos includes chrysotile, amosite, crocidolite, tremolite asbestos , anthophyllite asbestos , actinolite asbestos , and any of these minerals that has been chemically treated and/or altered. (cornell.edu)
- The name amphibole (Ancient Greek ἀμφίβολος - amphíbolos literally meaning 'double entendre', implying ambiguousness) was used by René Just Haüy to include tremolite, actinolite and hornblende. (wikipedia.org)
- Asbestos is the name given to a group of six different fibrous minerals (amosite, chrysotile, crocidolite, and the fibrous varieties of tremolite, actinolite, and anthophyllite) that occur naturally in the environment. (cdc.gov)
- Minerals important in asbestos analysis include cummingtonite-grunerite, crocidolite, tremolite-actinolite and anthophyllite. (osha.gov)
- Asbestos includes chrysotile, cummingtonite-grunerite asbestos (amosite), anthophyllite asbestos, tremolite asbestos, crocidolite, actinolite asbestos and any of these minerals which have been chemically treated or altered. (osha.gov)
- Amphiboles however are a category themselves and include: actinolite, anthophylite, amosite, crocidolite and termolite. (healthguidance.org)
- Actinolite - Actinolite is classified under amphibole asbestos. (mesotheliomacenter.org)
- Its chemical composition makes it a common mineral found in rocks and soil, but actinolite asbestos has not been used as much in asbestos containing products. (mesotheliomacenter.org)
- Many regulations have been created to protect people from exposure to mined and refined asbestos, like fibrous actinolite, which the scientists discovered. (eurekalert.org)
- The other types all belong to the amphibole group of minerals and include the fibrous forms of anthophyllite , amosite (grunerite), crocidolite (riebeckite), tremolite, and actinolite . (britannica.com)
- Some common varieties are tremolite , actinolite , asbestus , edenite , hornblende (the last name being also used as a general term for the whole species). (everything2.com)
- Relatively small amounts of tremolite and actinolite have been mined and used as asbestos. (earthmagazine.org)
- The name amphibole ( Greek αμφιβολος/amfibolos , meaning "ambiguous") was used by René Just Haüy to include tremolite, actinolite, and hornblende. (newworldencyclopedia.org)
Anthophyllite4
- Anthophyllite and tremolite asbestos account for less than one percent of the production and consumption, seeing rare commercial use. (mesotheliomasymptoms.com)
- citation needed] Asbestos use dates back at least 4,500 years, when the inhabitants of the Lake Juojärvi region in East Finland strengthened earthenware pots and cooking utensils with the asbestos mineral anthophyllite (see Asbestos-ceramic). (wikipedia.org)
- Ca(2)(Mg,Fe)(5)Si(8)O(22)(OH)(2) Anthophyllite asbestos. (osha.gov)
- Chrysotile has been the most commonly used form of asbestos, followed by crocidolite, amosite and anthophyllite. (earthmagazine.org)
Forms of asbestos11
- The U.S. Geological Survey (USGS ) explains that there are over 65 additional forms of chemically-distinct amphibole forms of asbestos that are not used commercially as asbestos. (mesotheliomasymptoms.com)
- Its greater availability and more widely distributed natural deposits also led to its more common use than other forms of asbestos. (mesotheliomasymptoms.com)
- All forms of asbestos are hazardous, and all can cause cancer, but amphibole forms of asbestos are considered to be somewhat more hazardous to health than chrysotile. (cdc.gov)
- Banning all forms of asbestos won't end the problem of asbestos-related diseases. (medworm.com)
- All forms of asbestos are linked to an increased risk of developing lung cancer and mesothelioma, but amphibole may require less exposure before causing health problems. (reference.com)
- The same lawyers who denied his exposure to deadlier forms of asbestos had seven months earlier filed with a trust claiming that very exposure. (forbes.com)
- Crocidolite was not as heat resistant as other forms of asbestos, so it was not as desirable. (mesotheliomacenter.org)
- 3, 4 Others dismiss such views and demand an international ban on all forms of asbestos. (bmj.com)
- Crocidolite is one of the several forms of asbestos. (artfire.com)
- The name of chrysotile, one of the most common forms of asbestos, is derived from the Greek words "chrysos" (gold) and "tilos" (fiber) or "gold fiber. (environmentalchemistry.com)
- Some forms of asbestos look like old wood, and merchants claimed that their resistance to fire was proof that these "wooden crosses" came from cross on which Christ was hung. (environmentalchemistry.com)
Asbestosis21
- Blue and brown asbestos not only can induce asbestosis at lower concentrations than white asbestos, but they are highly carcinogenic. (lyellcollection.org)
- Flores said Libby amphibole doesn't lead to the same kind of asbestosis as chrysotile - the more commonly used type of asbestos . (asbestos.com)
- Asbestosis, also called white lung, lung disease that is caused by the prolonged inhalation of asbestos fibres. (britannica.com)
- Inhalation of dust containing asbestos results in a process of interstitial pulmonary fibrosis called asbestosis. (bioportfolio.com)
- Inhalation of asbestos fibres can lead to various serious lung conditions, including asbestosis and cancer. (wikipedia.org)
- The signs and symptoms of asbestosis typically manifest after a significant amount of time has passed following asbestos exposure, often several decades under current conditions in the US. (wikipedia.org)
- Asbestosis and lung cancer cases associated with asbestos commonly develop at least 15 years after the exposure, and cases of mesothelioma often occur 30 years later. (reference.com)
- The question of whether lung cancer can be attributed to asbestos exposure in the absence of asbestosis remains controversial. (bmj.com)
- The aim of this paper is to review the evidence in the important scientific and medicolegal controversy as to whether or not lung cancer can be attributed to asbestos exposure without radiographic evidence of asbestosis. (bmj.com)
- Studies that examined exposure-response relationships between lung cancer and asbestos exposure without considering asbestosis were not included. (bmj.com)
- The amphibole minerals amosite and crocidolite were subjected to calcination and to hydrothermal treatment in order to study the effect of these heat treatments on the ability of the minerals to trigger formation of free radicals, which is known to be a main factor causing asbestosis and other asbestos-induced diseases. (biomedsearch.com)
- Of the health complications that asbestos can cause, the most common are: asbestosis, mesothelioma and lung cancer. (healthguidance.org)
- Years of continued asbestos exposure is incredibly harmful, and can cause incurable conditions such as asbestosis and mesothelioma cancer. (mesotheliomatreatmentcenters.org)
- Outside of cancers, asbestos can cause serious issues like asbestosis and pleural effusions. (sokolovelaw.com)
- In the lung parenchyma the needle-like asbestos fibres illicit a chronic low level inflammatory reaction with neutrophils and macrophages releasing compounds that damage lung parenchyma and eventually lead to asbestosis 2 . (radiopaedia.org)
- A Brief History of Asbestos Use and Associated Health Risks: First in a series of articles on asbestos: Its history, chemical and physical properties, uses, health hazards and the legal implications of asbestosis & mesothelioma. (environmentalchemistry.com)
- At that time the evidence against asbestos as a health hazard (it was found to cause asbestosis and mesothelioma) could no longer be denied, and its use fell into sudden decline. (environmentalchemistry.com)
- In 1928 Cook identified the effects of asbestos in the lungs as asbestosis . (environmentalchemistry.com)
- In one study asbestosis was detected in 10% of asbestos workers who had been employed in the industry for 10-19 years, in 73% of workers who had been employees 20-29 years and in 92% of workers who had been employed for more than 40 years. (environmentalchemistry.com)
- According to the WHO it is estimated that 107,000 people die annually from asbestos related diseases such as mesothelioma, asbestosis and asbestos-related lung cancer. (hubpages.com)
- Inhaling asbestos can cause asbestosis, a fibrosis of the lungs, as well as lung cancer and malignant mesothelioma. (geotimes.org)
Minerals39
- This paper explores the utility of tEBSD for characterization of asbestiform particles from reference asbestos materials, a suite of amphibole minerals of varying morphologies to determine if there is a correlation between mineral habit (i.e., crystal form), microscopic particle shape preferred orientation, and mineral specimens from an industrial talc deposit to provide a case study of the utility and limitations of the technique. (rjlg.com)
- Asbestos is the generic name given to a commercially and legally defined group of six naturally occurring fibrous silicate minerals that have been widely used in commercial products. (cdc.gov)
- Many of these minerals are not included in the legal definition of asbestos and are not regulated. (cdc.gov)
- Asbestos is a group of fibrous silicate minerals. (cdc.gov)
- Amphibole ( /ˈæmfɪboʊl/) is a group of inosilicate minerals, forming prism or needlelike crystals, composed of double chain SiO 4 tetrahedra, linked at the vertices and generally containing ions of iron and/or magnesium in their structures. (wikipedia.org)
- Amphiboles are minerals of either igneous or metamorphic origin. (wikipedia.org)
- Four of the amphibole minerals are among the minerals commonly called asbestos. (wikipedia.org)
- The first two are blue fibrous minerals, with glaucophane occurring in blueschists and crocidolite (blue asbestos) in ironstone formations, both resulting from dynamo-metamorphic processes. (wikipedia.org)
- One of these, namely chrysotile, belongs to the serpentine family of minerals, while all of the others belong to the amphibole family. (cdc.gov)
- However, because they are not fibrous, they are not classified as asbestos minerals. (cdc.gov)
- Asbestos is the name for a group of naturally occurring fibrous minerals that have been widely used because they're durable and resist high heat. (cancer.ca)
- any of the fibrous amphibole and serpentine minerals, esp chrysotile and tremolite, that are incombustible and resistant to chemicals. (dictionary.com)
- There has been considerable discussion in the literature related to the use of standard optical properties of commercial asbestos minerals for the classification of amphibole minerals found in raw materials as either asbestiform or as non-asbestos (1-4). (mcri.org)
- Four of the deposits are chrysotile and two from amphibole minerals. (mesothelioma.com)
- Amphibole: A family of minerals whose crystals are formed by long, thin units which have two thin ribbons of double chain silicate with a brucite ribbon in between. (osha.gov)
- Asbestos: A term for naturally occurring fibrous minerals. (osha.gov)
- Minerals important in asbestos analysis included in this family are chrysotile, lizardite, antigorite. (osha.gov)
- Asbestos has many industrial uses despite some health risks and is made from different minerals, all with a fibrous habit. (galleries.com)
- IAN PLIMER: Whereas asbestos minerals are amphibole minerals. (abc.net.au)
- Asbestos is not one but a group of minerals which all occur naturally as thin fibres. (healthguidance.org)
- Asbestos is a naturally occurring group of minerals that can only be identified under a microscope. (ehso.com)
- Asbestos minerals are divided into two groups -- serpentine and amphibole. (ehso.com)
- The distinction between groups is based upon its crystalline structure -- serpentine minerals have a sheet or layered structure, amphiboles have a chain-like crystal structure. (ehso.com)
- Boulder, CO, USA -- Naturally occurring asbestos minerals may be more widespread than previously thought, with newly discovered sources now identified within the Las Vegas metropolitan area. (eurekalert.org)
- This is the first discovery of asbestos in this kind of geological setting and it suggests the minerals could occur in other similar settings around the globe, said Buck, who has a background in medical geology. (eurekalert.org)
- Asbestos is the generic term for a number of naturally occurring fibrous minerals. (bmj.com)
- Asbestos , any of several minerals that readily separate into long, flexible fibres. (britannica.com)
- Chrysotile fibre usually has a whitish colour, but fibres of the amphibole minerals may be pale green, yellow, or blue. (britannica.com)
- Asbestos is a set of six naturally occurring silicate minerals from mixture of calcium magnesium, iron, and sodium exploited commercially for their desirable physical properties, particularly their resistance to heat and burning. (radiopaedia.org)
- Asbestos is a generic name given to six needle-shaped minerals that have been used in commercial products. (earthmagazine.org)
- Chrysotile is a serpentine group mineral and the other five are amphibole group minerals. (earthmagazine.org)
- For more information on asbestos and other mineral resources, [visit minerals.usgs.gov/minerals](http://visit minerals.usgs.gov/minerals). (earthmagazine.org)
- Asbestos (the name originating from a Greek word meaning "inextinguishable) is the commercial name given to a set of six natural silicate minerals. (hubpages.com)
- The inherent characteristics of the long thin fibrous crystals found in these minerals caused asbestos fibre to gain popularity in various industries at the turn of the 19th century. (hubpages.com)
- There are two distinct groups of minerals that can crystallize as asbestos fibre namely serpentine and amphibole. (hubpages.com)
- Amphibole defines an important group of generally dark-colored, rock-forming silicate minerals . (newworldencyclopedia.org)
- Hornblende is the most common subgroup of minerals in amphibole. (newworldencyclopedia.org)
- Asbestos is the name given to a number of naturally occurring fibrous silicate minerals that have been mined for their useful properties, such as thermal insulation, chemical and thermal stability, and high tensile strength. (nemmar.com)
- Asbestos differs from other minerals in its crystal development. (nemmar.com)
Type of asbestos15
- The assessment is focused on a specific type of asbestos found as a consequence of the mining and processing of vermiculite in Libby, Montana. (epa.gov)
- EPA has also estimated the amount of LAA that a person can breathe every day for a lifetime that is likely to not result in adverse non-cancer health effects-the first such estimate regarding non-cancer effects for any type of asbestos. (aiha.org)
- The name for this type of asbestos is chrysotile and the USGS explains about 96 percent of worldwide asbestos production and consumption between 1900 and 2003 is made up of this form. (mesotheliomasymptoms.com)
- [2] This type of asbestos, like all asbestos, is hazardous. (wikidoc.org)
- Blue asbestos is commonly thought of as the most dangerous type of asbestos (see above and below). (wikidoc.org)
- Health complications usually depend on the type of asbestos exposure, the American Cancer Society notes. (reference.com)
- Educators are reacting cautiously to a new study that suggests that the health hazards posed by the type of asbestos most common in school buildings have been greatly overstated. (edweek.org)
- Chrysotile is the only type of asbestos in the serpentine category, while the remaining five types belong in the amphibole category. (mesotheliomacenter.org)
- Because if its use in many insulation products, the EPA classified amosite as the second most used type of asbestos in the United States. (mesotheliomacenter.org)
- Since this type of asbestos was rarer, it wasn't used commercially. (mesotheliomacenter.org)
- Tremolite is the type of asbestos that can be found in vermiculite, which is a type of magnesium aluminum silicate material that expands when heated and used in a construction and agriculture. (mesotheliomacenter.org)
- Chrysotile, the only mineral in the serpentine group, is the most commonly used type of asbestos and accounts for approximately 95% of the asbestos found in buildings in the United States. (ehso.com)
- The most popular type of asbestos that is mined for its commercial value is Chrysotile (white asbestos) which is found in serpentine rock and mined extensively in Canada. (hubpages.com)
- As the only member of the serpentine group, Chrysotile (A, B) is the most common type of asbestos found in buildings. (nemmar.com)
- As an acronym for the Asbestos Mines of South Africa, Amosite is the second most prevalent type of asbestos found in building materials. (nemmar.com)
White asbestos8
- Although asbestiform amphiboles only contributed less than 6% of industrial asbestos worldwide, they have proved more toxic as mineral pathogens than the more commonly mined asbestiform serpentine (chrysotile or white asbestos). (lyellcollection.org)
- [2] They are commonly known by their colors, as blue asbestos , brown asbestos , white asbestos , and green asbestos . (wikipedia.org)
- The main variants are chrysotile, or white asbestos, and amphibole. (reference.com)
- Asbestos is a generic term for a number of different fibrous silicates, which vary in their potency for causing malignancy and include amphiboles (crocidolite or blue asbestos) and amosite (brown asbestos), and serpentine forms such as chrysotile (white asbestos). (mja.com.au)
- Professor Plimer also argues that white asbestos, known as chrysotile, is not really asbestos, and three years ago he even asserted that it was not a carcinogen. (abc.net.au)
- Chrysotile - Also known as white asbestos , this type of used for thousands of different kinds of products in the past. (egyptflowers.net)
- Chrysotile is commonly known as 'white asbestos' or named for its natural color. (ehso.com)
- Chrysotile, also known as "white asbestos" and a member of the Serpentine mineral group is the most common. (nemmar.com)
Blue asbestos7
- Blue asbestos (crocidolite). (wikipedia.org)
- Crocidolite, or blue asbestos, is one of the more common types of amphibole asbestos present in buildings, along with amosite asbestos, which is also known as brown asbestos. (mesotheliomasymptoms.com)
- riebeckite is known as crocidolite or blue asbestos. (wikipedia.org)
- Crocidolite - Crocidolite or "blue asbestos" is part of the amphibole family. (mesotheliomacenter.org)
- Crocidolite , 'blue asbestos' is also an amphibole. (ehso.com)
- Amosite (brown asbestos) and Crocidolite (blue asbestos) are amphiboles and the largest deposits were found in South Africa and Australia. (hubpages.com)
- Next, there is Crocidolite or "blue asbestos," which is an asbestos found in specialized high temperature applications. (nemmar.com)
Libby Amphibole19
- EPA has finalized the, Toxicological Review of Libby Amphibole Asbestos: in support of the Integrated Risk Information System (IRIS) . (epa.gov)
- The final health assessment of the toxicity of Libby amphibole asbestos was prepared by staff in both EPA's Region 8 Office and Office of Research and Development's National Center for Environmental Assessments (NCEA). (epa.gov)
- The Libby Amphibole Asbestos assessment was initiated in 2007. (epa.gov)
- An assessment for Libby Amphibole Asbestos is not currently on IRIS. (epa.gov)
- EPA hosted an interagency science consultation on the draft IRIS Toxicological Review of Libby Amphibole Asbestos. (epa.gov)
- EPA released the draft IRIS Toxicological Review of Libby Amphibole Asbestos for public review and comment, and announced the public listening session. (epa.gov)
- EPA posted the final Toxicological Review of Libby Amphibole Asbestos to the IRIS database. (epa.gov)
- EPA has announced that its cleanups of Libby and Troy-two towns in Montana that had significant and uncontrolled sources of Libby amphibole asbestos (LAA) due to the mining and processing of contaminated vermiculite-have been effective in reducing cancer and non-cancer risks in both towns. (aiha.org)
- The composition of Libby amphibole (LA) is complex and minimal toxicity data are available. (biomedcentral.com)
- A finalised review has been issued by the EPA describing the scientific basis for the human health hazard and dose-response assessments of inhaled Libby amphibole asbestos (LAA) in connection with IRIS (the Integrated Risk Information System database, available via http://www.epa.gov/iris/index.html ). (bibra-information.co.uk)
- A research team led by thoracic surgeon Dr. Raja Flores has identified Libby amphibole asbestos disease for the first time as the puzzling killer that continues to threaten innocent victims exposed to one variety of asbestos. (asbestos.com)
- It's the first study to really describe the syndrome of Libby amphibole disease," Flores said. (asbestos.com)
- Researchers found 87 percent of the miners exposed to Libby amphibole had pleural abnormalities and 68 percent had specific LPT. (asbestos.com)
- Places endemic with Libby amphibole need to know what to look for. (asbestos.com)
- We need to identify areas filled with Libby amphibole and try and prevent further contamination because this is a relentless, progressive killer. (asbestos.com)
- Libby Amphibole Disease: Pulmonary Function and CT Abnormalities in Vermiculite Miners. (asbestos.com)
- EPA finalizes Libby Amphibole Asbestos health assessment (Mont. (epa.gov)
- To address exposures to the public, Libby amphibole (LA) was measured in personal breathing zone and Tyvek surface wipe samples collected during firewood harvesting simulations, as well as in the ash and emissions of woodstoves when amphibole-contaminated firewood was combusted. (cdc.gov)
- Libby amphibole" associated with vermiculite ore near Libby, Montana, was also excluded. (exponent.com)
Brown asbestos2
- Amphibole asbestos is often called blue or brown asbestos. (cancer.ca)
- Amosite is also known as "brown asbestos. (nemmar.com)
Fibres15
- Asbestos is a mineral which is made up of minute fibres measuring less than 3 microns long by 1 micron thick. (environmental-expert.com)
- Asbestos is naturally occurring mineral fibres with specific physical and chemical qualities. (environmental-expert.com)
- Reports of the harmful effects of asbestos fibres on human health caused increasing concern beginning in the 1970s, however. (britannica.com)
- Amphibole is made of straight fibres that are much like needles. (healthguidance.org)
- More alarming, the friends and family of these groups may also be at higher risk due to the tiny asbestos fibres getting caught in their clothes and hair and being brought home with them after work. (healthguidance.org)
- The two major classes of asbestos fibres are called serpentine and amphibole (see diagram above). (ohsrep.org.au)
- This means that in Australia industry is recycling and returning (selling) asbestos fibres back into the community as a small proportion (unintended but known) of fill such as in various grades of gravel. (ohsrep.org.au)
- Shorter fibres are used in such products as paper, millboard, and asbestos-cement building materials. (britannica.com)
- Asbestos' brittle, smooth-surfaced fibres are difficult to spin, tending to slip past each other unless blended with a rough-surfaced fibre, such as cotton , which typically makes up 10-25 percent of the blend. (britannica.com)
- A regional variation in fibre concentration in different tissue samples was found, and the size distribution of naked fibres and asbestos bodies was determined. (bmj.com)
- By energy dispersive x-ray microanalysis the fibres were identified mainly as amphibole asbestos. (bmj.com)
- Employees in many different industries other than the asbestos mining industry were exposed to asbestos fibres. (hubpages.com)
- Taking into consideration that in the United States alone 10,000 people die each year as a direct result of exposure to the deadly asbestos fibres it is unconceivable why a country would continue the use or mining of this product. (hubpages.com)
- The best advice to anyone who has been, is, or may in the future be, exposed to asbestos fibres, particularly if the exposure is for a prolonged period of time, is to educate oneself with regards to the prevention of asbestos exposure. (hubpages.com)
- The level of friability determines the amount of asbestos fibres that can be released into the atmosphere and cause health problems when people inhale these fibres. (hubpages.com)
Diseases29
- Early awareness of asbestos-related diseases in producer countries did not translate into preventative action before hundreds of thousands of individuals had been exposed to high fibre levels. (lyellcollection.org)
- Despite the severity of asbestos-related diseases, the material has extremely widespread use in many areas. (wikipedia.org)
- Because of these common asbestos uses, the most common victims of related diseases are mechanics, construction workers, and those who have worked in shipyards . (mesotheliomasymptoms.com)
- Diagnostic signals are unusual when compared to more common asbestos-related diseases , making it difficult to identify early by traditional means. (asbestos.com)
- Some experts believe the increase in asbestos-related diseases among women and younger adults in Southern Nevada may be traced to those sites . (asbestos.com)
- Research showing a clear link between asbestos exposure and various serious diseases has resulted in increased regulation of asbestos and high burdens of corporate liability due to cessation of asbestos mining in the United States in 2002 and the dramatic decline in commercial use of imported asbestos in the United States since the late 1970s. (cdc.gov)
- Today, many drill press operators and other exposed workers suffer life-threatening diseases caused by asbestos exposure . (asbestos.net)
- Despite this, and in part because the consequences of exposure can take decades to arise, at least 100,000 people are thought to die each year from diseases related to asbestos exposure. (wikipedia.org)
- Despite the severity of asbestos-related diseases, the material has been widely used all over the world, and most buildings constructed before the 1980s are thought to contain asbestos. (wikipedia.org)
- The severity of asbestos-related diseases, the material's extremely widespread use in many areas of life, its continuing long term use after harmful health effects were known or suspected, and fact that asbestos-related diseases can emerge decades after exposure ceases, have resulted in asbestos litigation becoming the longest, most expensive mass tort in U.S. history and a significant legal issue in many other countries. (netlibrary.net)
- Fifteen years after its much-celebrated ban of the toxic mineral, Australia has just reached its peak of asbestos-related diseases such as malignant mesothelioma cancer. (medworm.com)
- This type of heavy exposure is more likely to lead to asbestos-related diseases such as pleural mesothelioma. (pleuralmesothelioma.com)
- When exposure exceeds this background environmental level, however - as is often the case for workers exposed to asbestos in their job environments - the progression of asbestos-related diseases such as asbestos cancer and mesothelioma is generally rapid and deadly. (bloggernews.net)
- The tragic consequence of this use of asbestos has been a terrible toll of asbestos-related diseases, with the worst being malignant mesothelioma . (bloggernews.net)
- Exposure to asbestos products , and development of diseases like mesothelioma, has occurred for millions of workers in industries such as boilermaking, pipefitting, construction, shipyard trades, and many, many others. (bloggernews.net)
- Fibrous and asbestiform amphiboles intergrown with vermiculite ore are suspected to be a causative factor in an abnormally high number of cases of respiratory diseases in former mine and mill workers, and in. (usgs.gov)
- A sbestos inhalation is established beyond doubt as the cause of the fatal cancer malignant mesothelioma (MM). Recently, there has been an epidemic of asbestos-related diseases in several westernised nations, resulting from past occupational exposure. (mja.com.au)
- 10 Australia has the highest per-capita rate of asbestos diseases in the world, and rates of MM continue to climb. (mja.com.au)
- Asbestos has been used in the manufacture of more than 300 common building products used in schools, and has been linked with lung cancer and other respiratory diseases. (edweek.org)
- 30 billion available RIGHT NOW for victims of all asbestos-related diseases. (mesotheliomatreatmentcenters.org)
- If you worked in these facilities, you should have regular health examinations to determine if you are developing any asbestos-related diseases. (mesotheliomatreatmentcenters.org)
- Additionally, because its use is the most wide-spread, more people suffer from asbestos related diseases from contact with chrysotile than any other form of asbestos. (mesotheliomacenter.org)
- There are several non-cancerous pleural diseases that are caused by long-term damage from the carcinogen asbestos. (sokolovelaw.com)
- There are a few other asbestos-related diseases that are less common. (sokolovelaw.com)
- At this time, there is no proven link between pleural plaque and more serious asbestos-related lung diseases. (sokolovelaw.com)
- It is the amphiboles that are responsible for the majority of asbestos related diseases 2 . (radiopaedia.org)
- :294 and various other diseases, See the Wikipedia article on Asbestos-related diseases . (rationalwiki.org)
- Other goals include becoming a united voice for all asbestos victims and educating the public as well as the medical community on asbestos related diseases. (hubpages.com)
- Since 2003, the Institut national de santé publique du Québec (INSPQ - Québec's public health institute) has produced some fifteen publications describing asbestos exposure and asbestos-related diseases in Québec's general population and its workers. (inspq.qc.ca)
Unprotected asbestos exposure1
- Certain asbestos material suppliers were fully aware of the severe dangers of long-term, unprotected asbestos exposure to innocent workers like the average drill press operator. (asbestos.net)
Tremolite asbestos5
- The study demonstrates a progressive loss of pulmonary function in patients exposed to tremolite asbestos. (ilo.org)
- Tremolite asbestos occurs in some of the Precambrian metamorphic rocks of the Llano region. (tshaonline.org)
- Serpentine and tremolite asbestos are considered the better varieties due to their greater flexibility and tensile strength, but cummingtonite asbestos has its uses and is being mined for this reason in South Africa. (galleries.com)
- Its chemical compound is mostly magnesium and is similar to tremolite asbestos. (mesotheliomacenter.org)
- The vermiculite that was contaminated with tremolite asbestos caused hundreds of deaths in the town of Libby, Montana - a town specifically known for its vermiculite mines. (mesotheliomacenter.org)
Pleural15
- Asbestos can also cause benign pleural effusions, pleural plaques and diffuse pleural thickening. (bioportfolio.com)
- Asbestos can also trigger progressive changes, such as thickened lung membranes, known as pleural plaques, or abnormal fluid buildup around the lungs, known as pleural effusions. (reference.com)
- Asbestos exposure is the main cause of malignant pleural mesothelioma. (pleuralmesothelioma.com)
- Still, even among asbestos-exposed people, pleural mesothelioma is rare. (pleuralmesothelioma.com)
- Pleural mesothelioma develops after a person inhales asbestos. (pleuralmesothelioma.com)
- Researchers believe several factors contribute to how asbestos triggers pleural cells to become cancerous. (pleuralmesothelioma.com)
- More than 80 percent of pleural mesothelioma cases are directly caused by asbestos. (pleuralmesothelioma.com)
- The key takeaway: Cancer experts and occupational health scientists agree asbestos exposure is the main cause of pleural mesothelioma. (pleuralmesothelioma.com)
- Patients with pleural mesothelioma have reported several sources of asbestos exposure, but the majority of exposures have occurred at industrial job sites. (pleuralmesothelioma.com)
- Cases of pleural mesothelioma after secondhand asbestos exposure show that even a small level of asbestos exposure can cause disease, if it occurs over a long period of time. (pleuralmesothelioma.com)
- Pleural malignant mesothelioma is in many cases associated with exposure to asbestos, and sarcomatous MM is strongly associated with a history of exposure, most often occupational. (springer.com)
- According to the British Thoracic Society, pleural plaque is the most common disease associated with asbestos exposure. (sokolovelaw.com)
- This mechanism likely also applies to other similarly-shaped, biologically-inert substances such as nanotubes and nanowires that meet the same length threshold for pleural retention of 5 µm as asbestos does. (rationalwiki.org)
- An epidemiological and environmental study was carried out in Shubra El-Kheima city, greater Cairo, of the exposure-response relationship between asbestos and malignant pleural mesothelioma. (who.int)
- Malignant pleural mesothelioma (MPM) is associated with environmental and occupational exposure to asbestos [1]. (who.int)
Building insulation1
- For example, in 1973 the EPA banned the use of spray-on building insulation and fireproofing containing more than 1 percent asbestos under authority of the Clean Air Act [EPA 2013] https://www.epa.gov/asbestos/asbestos-laws-and-regulations#phaseout external icon . (cdc.gov)
Lung cancer8
- It's a process that kills people before cancer does, before lung cancer or mesothelioma," Flores told Asbestos.com. (asbestos.com)
- Lung cancer is most common but asbestos is also a risk factor for cancers of other organs. (bioportfolio.com)
- Smokers exposed to asbestos may decrease their risk of developing lung cancer in the future if they abstain from smoking. (reference.com)
- A joint effect of asbestos exposure and smoking on lung cancer risk was analysed using a conditional logistical model. (bmj.com)
- Diagnosed with Mesothelioma or Lung Cancer from Asbestos? (mesotheliomatreatmentcenters.org)
- Mesothelioma is an extremely aggressive variant of lung cancer, and an estimated 80% of cases are caused by asbestos exposure. (rationalwiki.org)
- Evaluation of alternative exposure metrics for assessing mortality risk from lung cancer and mesothelioma among an occupational cohort exposed to amphibole asbestos from vermiculite mining operations in Libby, Montana. (cdc.gov)
- Lung cancer mortality and fibre exposures among North Carolina asbestos textile workers. (cdc.gov)
Inhalation3
- In at least one mine, children were used to trample shipping bags filled with amosite, and in doing so received what is thought to have been the highest ever inhalation dose of amphibole asbestos. (lyellcollection.org)
- This is in marked contrast to the amphibole tremolite , which was also investigated using the same inhalation biopersistence protocol. (curehunter.com)
- In 1897 a Viennese physician attributed emaciation and pulmonary problems to (asbestos) dust inhalation. (environmentalchemistry.com)
Dust23
- Asbestos use continued to grow through most of the 20th century until public knowledge (acting through courts and legislatures) of the health hazards of asbestos dust outlawed asbestos in mainstream construction and fireproofing in most countries. (wikipedia.org)
- Class IV asbestos work means maintenance and custodial activities during which employees contact but do not disturb ACM or PACM and activities to clean up dust, waste and debris resulting from Class I, II, and III activities. (cornell.edu)
- When vermiculite is mined, often so too are trace amounts of asbestos dust. (newsociety.com)
- Residual asbestos dust, as was found in the Libby vermiculite, is already friable as it is not in any stable compound. (newsociety.com)
- Needle or filamentous shaped dust is released when working with asbestos. (bioportfolio.com)
- 1.6 Warning- Breathing of asbestos dust is hazardous. (astm.org)
- In addition to other precautions, when working with asbestos-cement products, minimize the dust that results. (astm.org)
- 1.3 Warning- Breathing of asbestos dust is hazardous. (astm.org)
- Asbestos was widely used during the 20th century until the 1970s, when public recognition of the health hazards of asbestos dust led to its prohibition in mainstream construction and fireproofing in most countries. (wikipedia.org)
- Now people recognize the health hazard that asbestos dust poses, and it is banned or strictly regulated in most nations around the world. (wikipedia.org)
- These desirable properties made asbestos a very widely used material, and its use continued to grow throughout most of the 20th century until the carcinogenic effects of asbestos dust caused its effective demise as a mainstream construction and fireproofing material in most countries. (netlibrary.net)
- The plaintiffs' expert, Dr. William Longo, presented results of a 'work simulation' study that involved grinding and abrading the gaskets with various methods to create dust, which he failed to analyze for asbestos content. (forbes.com)
- 17 Home renovation is a popular activity in Australia, and asbestos-containing materials may be a source of exposure to householders if respirable asbestos dust is released. (mja.com.au)
- In 1966 Ted Pysden from James Hardie said a newspaper article about asbestos was - 'merely one of many reports of world studies which have been conducted since 1935 when the association between exposure to dust and carcinoma of the lung, mesothelioma of the pleura, tumour of the bladder and uterus and other fatal complaints was first recognised … The only preventive action is to eliminate the presence of dust. (ohsrep.org.au)
- Naturally occurring asbestos can also be harmful and difficult to control, especially when it becomes dust and can be transported on the wind. (eurekalert.org)
- The first medical article on the hazards of asbestos dust appeared in the British Medical Journal in 1924. (bmj.com)
- Following inquiries by Edward Merewether and Charles Price, the British government introduced regulations to control dangerous dust emissions in UK asbestos factories. (bmj.com)
- 5 Such scientific disputes and policy uncertainties conform to a long standing pattern whereby medical knowledge about the health hazards of asbestos dust has emerged slowly and sometimes falteringly since the early 20th century. (bmj.com)
- Asbestos: when the dust settles an imaging review of asbestos-related disease. (radiopaedia.org)
- NIOSH's report urges the agency to use wet mop-up procedures whenever possible to help reduce the amount of dust and potential asbestos exposures. (aiha.org)
- Pliny the Elder suggested the use of a respirator made of transparent bladder skin to protect workers from asbestos dust. (environmentalchemistry.com)
- He pointed out that this fibrotic scarring of lungs resulting from prolonged exposure to asbestos dust could have a latency period of 15 years. (environmentalchemistry.com)
- Amphiboles are more easily turned to dust with finger pressure (known as "friable) and therefore more hazardous than Chrysotile which is very flexible. (hubpages.com)
South Africa4
- Most amphibole asbestos was mined as crocidolite (blue) and amosite (brown) from Precambrian banded ironstones in South Africa and, to a lesser extent, Western Australia. (lyellcollection.org)
- South Africa now has the highest rate of asbestos-induced mesothelioma in the world, with this invariably fatal cancer responsible for over 9% of deaths in a study conducted in a former Cape crocidolite mining town. (lyellcollection.org)
- Amosite , CAS No. 12172-73-5, is a trade name for the amphiboles belonging to the Cummingtonite - Grunerite solid solution series, commonly from Africa , named as an acronym from Asbestos Mines of South Africa. (wikidoc.org)
- Asbestos deposits can be found throughout the world and are still mined in Australia, Canada, South Africa, and the former Soviet Union. (nemmar.com)
Fiber9
- Interleukin-8 mRNA levels were quantified by qRT-PCR to measure relative pro-inflammatory response induced in HAEC in response to amphibole fiber exposure. (biomedcentral.com)
- Along with the material's ability to penetrate lung tissue, another important factor in the development of asbestos-related disease is the length of time the fiber resides in the body. (mesotheliomasymptoms.com)
- These fibrils are arranged in parallel and a single microscopically-observed asbestos fiber can represent multiple fibrils that have not separated. (cdc.gov)
- The main difference between serpentine and amphibole asbestos is fiber appearance. (mesothelioma.com)
- 1.1 This test method covers the determination of the length distribution and fines content of milled asbestos fiber by wet classification employing the McNett fiber classifier. (astm.org)
- Asbestos Fiber: A fiber of asbestos meeting the criteria for a fiber. (osha.gov)
- Amphibole asbestos exposure is the fiber type most frequently implicated. (springer.com)
- In one series, 77% of patients had reported a history of asbestos exposure, corroborated in a subset of cases with measurements of pulmonary fiber load. (springer.com)
- A natural mineral fiber that is either mined or quarried, asbestos can be spun, woven, or felted, almost like cotton and wool. (britannica.com)
Exposures8
- However, the publications they cited generally involved issues of asbestos exposure in buildings and were not pertinent to occupational exposures to chrysotile, which was the subject of our paper. (cdc.gov)
- Fortunately, asbestos exposures due to vermiculite can now largely be avoided by being conscious of the material you are working with and identifying potentially hazardous vermiculite granules. (newsociety.com)
- Garlock had negotiated settlements in 99% of some 20,000 asbestos lawsuits, the judge noted, but then as remaining defendants went bankrupt plaintiff lawyers escalated their demands at the same time as evidence of other exposures 'disappeared. (forbes.com)
- Short-term and one-time asbestos exposures, such as what might occur in a home remodeling project or homeowner installation of loose-fill insulation, are much less likely to cause health problems. (pleuralmesothelioma.com)
- Since asbestos is a hazardous substance, its waste must be disposed of in designated (Asbestos Containing Material) landfills where the area is prepped for asbestos waste in an effort to limit environmental exposures. (mesothelioma.com)
- NIOSH recently visited the site of a prescribed burn near a former vermiculite mine in Montana to evaluate wildland firefighters' exposures to asbestos. (aiha.org)
- A final report released by the Agency for Toxic Substances and Disease Registry (ATSDR) concludes that current exposures to naturally occurring amphibole asbestos from campus soil at Oak Ridge High School have been minimized by the mitigations conducted by the El Dorado Union High School District (EDUHSD) and the U.S. Environmental Protection Agency. (cdc.gov)
- Estimates of historical exposures by phase contrast and transmission electron microscopy in North Carolina USA asbestos textile plants. (cdc.gov)
Fibre9
- It is probable that the issue may depend critically on asbestos fibre type, an aspect not so far addressed. (bmj.com)
- Differences in the carcinogenic potency of different asbestos fibre types are debated in the scientific community. (bmj.com)
- An asbestos fibre about the diameter of a human hair is actually a bundle of nearly 2 million fibrils that can fit on a pin head. (ohsrep.org.au)
- Once airborne, there are no means of making an asbestos fibre safe. (ohsrep.org.au)
- Though valued since ancient times for its resistance to fire, asbestos fibre did not achieve commercial importance until the 19th century. (britannica.com)
- After mining or quarrying, the asbestos fibre is freed by crushing the rock and is then separated from the surrounding material, usually by a blowing process. (britannica.com)
- By the 1970s Quebec in Canada and the Urals region of the Soviet Union were the major sources of asbestos fibre, and the United States led the world in the manufacture of asbestos products. (britannica.com)
- Asbestos fibre is heat- and chemical-resistant, a flame-retardant, has exceptional insulation properties, absorbs sound, is flexible and has a very high tensile strength. (hubpages.com)
- The airborne asbestos fibre concentrations were determined in all areas. (who.int)
Riebeckite3
- It is the fibrous form of the amphibole riebeckite. (wikidoc.org)
- Glaucophane, crocidolite, riebeckite and arfvedsonite form a somewhat special group of alkali-amphiboles. (wikipedia.org)
- It is a fibrous blue mineral and belongs to the riebeckite family of amphibole silicates. (artfire.com)
1970s10
- In the mid 1970s, other materials containing asbestos were banned. (mesotheliomasymptoms.com)
- In the 1970s, following enactment of various laws that established Federal agencies such as the Environmental Protection Agency (EPA) and Occupational Safety and Health Administration (OSHA) with missions to protect the environment, the general public, workers, and consumers, some uses of asbestos began to be banned or otherwise regulated. (cdc.gov)
- Asbestos mining in the United States reached its height in the late 1960s and early 1970s. (mesothelioma.com)
- Asbestos mining reached a peak in the late 1960s and early 1970s. (mesothelioma.com)
- Reports of long-term harmful effects of asbestos exposure began appearing in the 1970s, although dangers associated with asbestos were suspected decades earlier. (howstuffworks.com)
- Asbestos use has been banned in many industrialised countries since the 1970s, but asbestos-containing materials are still found in many buildings in Australia, including domestic residences. (mja.com.au)
- Much of the use of asbestos in the United States was diminished in the 1970s and 1980s with the development of suitable alternatives for certain applications, and asbestos has not been mined or otherwise produced in the U.S. since 2002. (exponent.com)
- Minnesota's first asbestos deposits were found in the Iron Hills area, which is where many iron mines were operating again in the 1970s. (mesotheliomatreatmentcenters.org)
- Once these health risks were firmly documented in the 1970s, regulatory agencies in the United States and other developed nations began placing tight restrictions on workers' exposure to asbestos in industrial plants. (britannica.com)
- [11] Nonetheless, the asbestos industry attempted to cover up the risks of asbestos into the 1970s [12] (sounds familiar, doesn't it? (rationalwiki.org)
Occupational8
- An abnormally high incidence of lung disease has been observed in the residents of Libby, Montana, which has been attributed to occupational and environmental exposure to fibrous amphiboles originating from a nearby contaminated vermiculite mine. (biomedcentral.com)
- Patients who had occupational and non-occupational exposure to asbestos in Libby were evaluated for progressive loss of pulmonary function. (ilo.org)
- 5. The method of claim 1 , wherein the composition is administered to an individual who has inhaled silica or asbestos particles due to an occupational exposure. (google.com)
- In this study, we investigate self-reported non-occupational asbestos exposure during home renovation in New South Wales. (mja.com.au)
- 1 , 2 Although estimates suggest that more than 125 million people are exposed to asbestos in occupational settings, 3 the number of people non-occupationally exposed is not known. (mja.com.au)
- Most people never realized occupational exposure to asbestos could make them sick. (sokolovelaw.com)
- The purpose of GAAW is to educate people on the dangers of asbestos - something so many people incorrectly perceive to be an occupational hazard that was put to bed with the global trend towards the banning of asbestos in recent years. (hubpages.com)
- An evaluation of potential occupational exposure to asbestiform amphiboles near a former vermiculite mine. (cdc.gov)
Airborne6
- It is a simple model designed for sampling of asbestos, lead and other airborne contaminates. (environmental-expert.com)
- Asbestos24™ is a simple 24 hour test which measures airborne asbestos as well as PM10 and PM2.5 particles. (environmental-expert.com)
- Asbestos is believed to only be a significant hazard when it has become airborne. (mesotheliomasymptoms.com)
- Critical barrier means one or more layers of plastic sealed over all openings into a work area or any other similarly placed physical barrier sufficient to prevent airborne asbestos in a work area from migrating to an adjacent area. (cornell.edu)
- Employee exposure means that exposure to airborne asbestos that would occur if the employee were not using respiratory protective equipment . (cornell.edu)
- These disorders are characterized by scarring of the tissue between the air sacs in the lungs, which is often caused by exposure to dangerous airborne materials like asbestos. (sokolovelaw.com)
Commonly3
- Thus, asbestos cement sheeting, commonly known as "fibro", was intensively produced and used during this period. (mja.com.au)
- The most commonly found asbestos in commercial products that most people suffer from is chrysotile. (healthguidance.org)
- EPA has also developed a list of commonly used Asbestos acronyms . (ehso.com)
1980s11
- By the 1980s and 1990s, asbestos trade and use were heavily restricted, phased out, or banned outright in an increasing number of countries. (wikipedia.org)
- Since the mid 1980s, many uses of asbestos are banned in many countries. (wikidoc.org)
- From the 1920s to the late 1980s, every one of these facilities used asbestos-containing materials for production. (asbestos.net)
- Despite this, widespread asbestos use continued until the late 1980s when the health risks were publicly identified, and the government enacted asbestos regulations. (asbestos.net)
- By the 1980s and 1990s asbestos trade and use started to become banned outright, phased out, or heavily restricted in an increasing number of countries. (netlibrary.net)
- Particularly for those who worked with asbestos (this was often the case before the dangers were fully understood and it was very popular between the 1940s and 1980s due to its heat resistance, conductance and chemical resistance) this can be a serious issue to look out for, and the symptoms of asbestos poisoning may take between 15 and 40 years before they make themselves known. (healthguidance.org)
- In the mid 1980s the US EPA estimated that 20% of all public buildings in the US contained some type of ACBMs (Asbestos Containing Building Materials) that was friable. (ohsrep.org.au)
- Asbestos cement materials were made in Australia from 1917 to the mid-1980s so even the very youngest asbestos cement roof has been subjected to over twenty years of weathering, heat, cold, rain, hail and winds. (ohsrep.org.au)
- Since the 1980s various substitutes for asbestos have been developed for use in many products. (britannica.com)
- In the 1980s, earth scientists helped medical scientists to recognize that there was more than one type of material called asbestos, and that the different asbestos materials are not equally carcinogenic. (geotimes.org)
- In Québec, asbestos-containing materials were used abundantly in buildings constructed prior to the 1980s ( 5 ). (inspq.qc.ca)
Talc9
- Scanning Electron Microscopy and Transmitted Electron Backscatter Diffraction Examination of Asbestos Standard Reference Materials, Amphibole Particles of Differing Morphology, and Particle Phase Discrimination from Talc Ores. (rjlg.com)
- Bandli , B.R. and M.E. Gunter, "Scanning Electron Microscopy and Transmitted Electron Backscatter Diffraction Examination of Asbestos Standard Reference Materials, Amphibole Particles of Differing Morphology, and Particle Phase Discrimination from Talc Ores", Microscopy and Microanalysis, Vol. 20(6), pp. 1805-1816, 2014. (rjlg.com)
- Asbestos in commercial indian talc. (bioportfolio.com)
- Easily available commercial Indian talc products widely used in Southeast Asia were examined for the presence of asbestos. (bioportfolio.com)
- Asbestos in talc products carry all risks of asbestos-related disease. (bioportfolio.com)
- Asbestos deposits can be found around natural talc and vermiculite deposits. (mesothelioma.com)
- Johnson & Johnson suffered its first loss in an asbestos-related talcum powder lawsuit Thursday after a New Jersey jury ordered the company and its talc supplier to pay $37 million in damages. (medworm.com)
- Amphibole asbestos is associated with talc deposits in Hudspeth County. (tshaonline.org)
- Topics include characterization of amphiboles including those associated with vermiculite, talc and various ores and quarried rock. (prweb.com)
Deposits10
- According to the study, similar amphibole deposits have been found in surface sites in Arizona and Nevada. (asbestos.com)
- Deposits of asbestos are found throughout the world. (wikidoc.org)
- Asbestos is a mineral that naturally occurs in deposits all over the world. (asbestos.net)
- Unfortunately, many vermiculite deposits are known to contain not only the targeted mineral, but also hazardous asbestos. (newsociety.com)
- Asbestos is found in naturally occurring deposits around the world. (mesothelioma.com)
- Asbestos deposits are located across the United States, mainly in the western U.S. and eastern coastal states. (mesothelioma.com)
- In fact, New Mexico is home to six natural asbestos deposits due to its unique geology. (mesothelioma.com)
- Although asbestos deposits can be found all over the world, most of the world's asbestos comes from a few nations. (egyptflowers.net)
- Asbestos is widely distributed, but the largest deposits are found in Canada and Russia. (bmj.com)
- Modern asbestos production began in 1868 with the workings of a mine in Italy , and in 1878 large-scale production from deposits in Quebec began. (britannica.com)
Risks8
- Individuals exposed to asbestos face health risks including cancer and other illnesses. (mesothelioma.com)
- Asbestos and asbestos products present demonstrated health risks for users and for those with whom they come into contact. (astm.org)
- Because of the severe health risks posed by asbestos, it is critically important for informed consumers to be aware of the exposure risk in their environment. (bloggernews.net)
- Health risks associated with amphibole exposure are much greater than those with chrysotile. (mja.com.au)
- The research team, which was led by a medical-school professor from the University of Vermont and included researchers from four other institutions, also said that the risk of an asbestos-related death due to a school exposure is 'magnitudes lower' than the risks posed by whooping-cough vaccines, participation in high-school football, and smoking. (edweek.org)
- They understand the serious health risks that are involved in asbestos being in your home and in the removal of asbestos. (diamondcertified.org)
- The Federal Agency for Toxic Substances and Disease Registry (ATSDR) today released the final version of its health consultation for El Dorado Hills, CA. The health consultation says that people should use caution in areas of naturally occurring asbestos to reduce potential health risks from exposure. (cdc.gov)
- People can minimize potential health risks from naturally occurring asbestos in the El Dorado Hills area by taking precautions, according to a health consultation by the Agency for Toxic Substances and Disease Registry (ATSDR). (cdc.gov)
Particles3
- If asbestos is present, it should be monitored to ensure that the area is still safe and that the particles have not been disturbed. (mesotheliomasymptoms.com)
- Drill press operation released vast quantities of raw asbestos particles into the air and left behind mounds of asbestos-laden metal filings and shavings. (asbestos.net)
- Inhaled asbestos particles lodge in the lung and can penetrate to the pleura and even peritoneum . (radiopaedia.org)
Effects of asbestos3
- While Pliny or his nephew Pliny the Younger is popularly credited with recognising the detrimental effects of asbestos on human beings, examination of the primary sources reveals no support for either claim. (wikipedia.org)
- What Are the Side Effects of Asbestos? (reference.com)
- These and other potentially deleterious health effects of asbestos have been recognized and studied for decades. (geotimes.org)
Associated with vermiculite1
- The community of Libby, Montana was recently the focus of national attention following a widespread amphibole contamination associated with vermiculite mining and processing. (ilo.org)
Carcinogenic1
- In contrast, some have argued that pure chrysotile "may present little or no carcinogenic hazard" if uncontaminated by amphiboles. (bmj.com)
Varieties2
- 1.2 The test method is applicable to all grades and varieties of homogeneous milled asbestos. (astm.org)
- Numerous subspecies and varieties of amphibole are known, the more important of which are shown below. (newworldencyclopedia.org)
Mesothelioma31
- Therefore, we welcome their statement that the thrust of the amphibole hypothesis is only for mesothelioma. (cdc.gov)
- Get help obtaining veteran benefits for mesothelioma and asbestos illnesses. (asbestos.com)
- We're ultimately hoping [with this trial] to forge a new standard of care for mesothelioma," Dr. Patrick Ma, lead investigator at WVU Cancer Center, told Asbestos.com. (asbestos.com)
- Were You Exposed to Asbestos and then Diagnosed with Mesothelioma? (asbestos.net)
- Did You Develop Mesothelioma Due to Work Site Asbestos Exposure? (asbestos.net)
- Exposed to Asbestos and Developed Mesothelioma? (asbestos.net)
- There is over $30 Billion in asbestos trust funds for mesothelioma victims. (asbestos.net)
- When the mine's employees and residents of the town began to become ill with mesothelioma (an aggressive form of cancer known to be caused only by asbestos exposure) and other respiratory conditions, it became clear that asbestos contamination had become a major issue in commercial vermiculite mining. (newsociety.com)
- Asbestos cancer is among the most devastating malignancies known and mesothelioma treatment is typically limited to palliative therapies to ease symptoms. (newsociety.com)
- Those exposed risk illnesses such as mesothelioma and other asbestos cancers. (mesothelioma.com)
- In a 65-page order released late today, U.S. Bankruptcy Judge George Hodges set Garlock's liability at $125 million, a fraction of the $1.4 billion plaintiff lawyers said the company owes present and future victims of mesothelioma, a deadly cancer caused by asbestos. (forbes.com)
- The main cause of mesothelioma is exposure to asbestos. (pleuralmesothelioma.com)
- Doctors first suspected the connection between asbestos and mesothelioma in the 1890s. (pleuralmesothelioma.com)
- The heavier the asbestos exposure and the longer a person is exposed throughout their lifetime, the higher the risk for mesothelioma . (pleuralmesothelioma.com)
- How Does Asbestos Cause Mesothelioma? (pleuralmesothelioma.com)
- A 2018 study published in Frontiers in Immunology detailed a newly discovered mechanism for how asbestos may lead to mesothelioma. (pleuralmesothelioma.com)
- Is Asbestos the Only Cause of Mesothelioma? (pleuralmesothelioma.com)
- Although mesothelioma can occur without previous asbestos exposure, this is exceedingly rare. (pleuralmesothelioma.com)
- Yet even in the family members with the RBM15 mutation, most who developed mesothelioma also had documented histories of asbestos exposure. (pleuralmesothelioma.com)
- The Mesothelioma Cancer Alliance provides support for asbestos cancer patients and caregivers. (mesothelioma.com)
- Asbestos exposure is causally associated with the development of malignant mesothelioma (MM), which is increasingly being reported after exposure to asbestos fibro sheeting in Australia. (mja.com.au)
- Mesothelioma meanwhile is a type of cancer that attacks the tiny membranes surrounding the lungs and abdomen, while more general cancer is also common and one of the largest causes of death among asbestos sufferers. (healthguidance.org)
- Our attorneys help families affected by asbestos seek and recover the compensation they need to seek out the best medical treatments, pay expensive medical bills, meet their financial responsibilities and achieve the highest quality of life following a mesothelioma diagnosis. (mesotheliomatreatmentcenters.org)
- The MN Department of Health confirmed that there was a much higher rate of mesothelioma for men in NE Minnesota, and it was concluded it most likely was because asbestos mine workers were handling parts of the taconite production duties. (mesotheliomatreatmentcenters.org)
- Only then, with the discoveries that mesothelioma was an asbestos related disease and that workers other than those employed in the dustiest parts of asbestos factories were at risk, were the nature and scale of the hazard reassessed. (bmj.com)
- Most of those who get mesothelioma or other asbestos related health problems were exposed to asbestos for a very long time. (diamondcertified.org)
- Mesothelioma and Asbestos in the Province of Quebec, 1969-1972. (ebscohost.com)
- Recounts the records of patients mortality due to mesothelioma and asbestos during the period 1969-1972 in the province of Quebec. (ebscohost.com)
- Linda Reinstein is the widow of Alan Reinstein who died on May 22 2006 after being diagnosed with the asbestos-related mesothelioma. (hubpages.com)
- The prevalence of mesothelioma increased with increased cumulative exposure to asbestos. (who.int)
- In a mortality study conducted in Québec, 38 mesothelioma deaths were observed up to 1992 among 10,918 asbestos mine and mill workers and workers in one asbestos products factory ( 8 ). (inspq.qc.ca)
Commercially5
- These properties make asbestos commercially useful but also stable in the environment. (cdc.gov)
- IAN PLIMER: It is called commercially asbestos. (abc.net.au)
- IAN PLIMER: As I said it's called commercially asbestos. (abc.net.au)
- A mineral product that is flexible, possesses high tensile strength, is heat resistant, resistant to chemical degradation, and can be woven into fabric is commercially designated as "asbestos. (mesotheliomacenter.org)
- Asbestos is also mined commercially in the United States. (ehso.com)
Naturally occurri2
- Asbestos (pronounced: /æsˈbɛstɒs/ or /æsˈbɛstəs/) is a naturally occurring fibrous silicate mineral. (wikipedia.org)
- One of the 10 substances selected was asbestos, a naturally-occurring fibrous mineral. (exponent.com)
Hazardous4
- The primary cause of these errors has been a poor understanding of mineralogy and analytical techniques among the many asbestos laboratories that arose following the passage of the 'Asbestos Hazardous Emergency Response Act' (AHERA) regulations. (rjlg.com)
- Why is Asbestos Hazardous? (mesotheliomasymptoms.com)
- While W.R. Grace was mining vermiculite before existing regulations were in place, the fact is that even vermiculite which contains less than one percent asbestos is potentially hazardous to human health. (newsociety.com)
- Hazardous materials like asbestos can cause serious health problems. (diamondcertified.org)
Lungs2
- Asbestos causes a number of health problems and this is as a result of its being breahted into the lungs. (healthguidance.org)
- Absestosis is caused by the physical presence of asbestos in the lungs which causes scarring and fibrosis. (healthguidance.org)
19th century5
- Asbestos mining existed more than 4,000 years ago, but large-scale mining began at the end of the 19th century, when manufacturers and builders began using asbestos for its desirable physical properties. (wikipedia.org)
- Asbestos became increasingly popular among manufacturers and builders in the late 19th century due to its resistance to heat, electricity and chemical damage, sound absorption and tensile strength. (wikidoc.org)
- Archaeological studies have found evidence of asbestos being used as far back as the Stone Age to strengthen ceramic pots, but large-scale mining began at the end of the 19th century when manufacturers and builders began using asbestos for its desirable physical properties. (wikipedia.org)
- Asbestos was used for thousands of years for various things, such as construction and pottery, although large-scale mining didn't begin until the 19th century. (rationalwiki.org)
- Near the end of the 19th century, the use asbestos became even more widespread as a result of the industrial revolution. (environmentalchemistry.com)
Serpentine or amphibole1
- Each type belongs to the serpentine or amphibole asbestos mineral family. (mesothelioma.com)
Carcinogen4
- Designed for general awareness, this video explains what asbestos is, where it is found, and how to reduce exposure to this carcinogen. (environmental-expert.com)
- Biotite would often be found in close proximity to another mineral known as diopsid, which over millions of years and the same weathering conditions would eventually become asbestos, a known carcinogen. (newsociety.com)
- Asbestos is a carcinogen. (bioportfolio.com)
- Although asbestos is a known carcinogen the United States has as yet not banned asbestos and Canada continues to mine and export asbestos to developing countries. (hubpages.com)
Caused by asbestos exposure1
- A plaque caused by asbestos exposure on the diaphragmatic pleura. (wikipedia.org)
Health30
- This restriction sharply limits the public health relevance of the hypothesis, since most studies have found that asbestos produces more lung cancers than mesotheliomas. (cdc.gov)
- Continuing long-term use of asbestos after harmful health effects were known or suspected, and the slow emergence of symptoms decades after exposure ceased, made asbestos litigation the longest, most expensive mass tort in U.S. history and a much lesser legal issue in most other countries involved. (wikipedia.org)
- The recent study was done by doctors and scientists from the Mount Sinai Health System and Northwell Health in New York, the University of Montana, Montana State University and the Center for Asbestos Related Disease (CARD) in Libby. (asbestos.com)
- This was due to growing scientific evidence concerning the association of asbestos with serious health effects. (cdc.gov)
- Environmental Health Education for Asbestos-Contaminated Communities in Italy: The Casale Monferrato Case Study. (bioportfolio.com)
- This Public Health Statement is the summary chapter from the Toxicological Profile for Asbestos . (cdc.gov)
- This public health statement tells you about asbestos and the effects of exposure. (cdc.gov)
- We present a review of the findings of this emerging environmental health concern impacting not only the residents of Libby but applicable to other populations living near asbestos-contaminated areas. (cdc.gov)
- However, it is now a well-known health and safety hazard and the use of asbestos as a building material is illegal in many countries. (wikipedia.org)
- [3] [4] Health issues related to asbestos exposure can be found in records dating back to Roman times . (netlibrary.net)
- Asbestos will continue to have a serious impact on public health for many decades to come, however, as the quantity of existing asbestos products in homes, schools, offices, and other structures is vast. (bloggernews.net)
- 11 , 12 MM secondary to exposure to asbestos-containing materials is an emerging public health problem. (mja.com.au)
- Referring to another substance whose health effects allegedly have been exaggerated, although on the positive side, Bill Rukeyser, a spokesman for California's Superintendent of Public Instruction Bill Honig, joked last week: 'Asbestos may turn out to be the oat bran of the public-buildings world. (edweek.org)
- They need to the training because asbestos is a highly dangerous mineral and can cause a number of health problems to those who its come into contact with. (egyptflowers.net)
- In this article, we will strive to supply you with all the basic information about asbestos, how you could minimize the risk of exposure to better safeguard your health, and why its important you should consider undergoing asbestos training online. (egyptflowers.net)
- Since the days of the Industrial Revolution, asbestos has been proven to cause a host of health complications and illnesses which require anyone in the profession that deals with or is at high risk of asbestos exposure to acquire Asbestos training online or from a qualified expert. (egyptflowers.net)
- New York City estimated that 68% of all its buildings contained asbestos and that 81% of that asbestos was in such poor condition that it was a public health risk. (ohsrep.org.au)
- On this page, you will find general information about asbestos and its health effects. (ehso.com)
- Although many people live in homes where there is asbestos, they don't necessarily develop health problems. (diamondcertified.org)
- If you are living around asbestos and not developing any health issues, then you may wonder why you should have the asbestos removed. (diamondcertified.org)
- Just having asbestos in your home doesn't necessarily mean that you are going to develop a health issue. (diamondcertified.org)
- Should Canadian health care professionals support the call for a worldwide ban on asbestos? (ebscohost.com)
- and despite thousands of years of people's personal observations , asbestos was not known to be dangerous until scientific studies were done on its health effects in the 20th century. (rationalwiki.org)
- There is still the rare crank who denies the health hazards of asbestos, such as journalist Christopher Booker . (rationalwiki.org)
- Even though asbestos markets have declined dramatically over the past 30 years because of health and liability issues, it is still used throughout the world. (earthmagazine.org)
- The story of asbestos is an all to familiar one, "A miraculous, do anything chemical substance is identified as a serious health hazard" - except for one thing. (environmentalchemistry.com)
- Its use predates history, and the recognition of health hazards associated with asbestos is recorded in writings from the first century. (environmentalchemistry.com)
- Both Pliny the Elder and the first century geographer Strabo noted that workers exposed to asbestos had many health problems. (environmentalchemistry.com)
- Other ATSDR recommendations include continued state monitoring of health outcome data for asbestos-related disease and full enforcement of state and county air toxics regulations. (cdc.gov)
- Residents will be able to ask federal scientists questions about their report examining health effects from naturally occurring asbestos later this month in El Dorado Hills. (cdc.gov)
Form oblique cleavage planes1
- Most apparent, in hand specimens, is that amphiboles form oblique cleavage planes (at around 120 degrees), whereas pyroxenes have cleavage angles of approximately 90 degrees. (wikipedia.org)
Microscopic1
- So don't let any Realtors tell you there's no asbestos in an older house you want to buy - unless they can prove they have microscopic vision! (nemmar.com)
Classes of asbestos1
- There are two classes of asbestos: serpentine and amphibole. (cdc.gov)
Uses of asbestos2
- There are several uses of asbestos, particularly in the realm of duct and pipe insulation, insulation in buildings , as well as in ceiling and wall panels. (mesotheliomasymptoms.com)
- Please see the toxicological profile for more information on the properties and uses of asbestos. (cdc.gov)
Hazards of asbestos1
- Interestingly enough, the hazards of asbestos were recorded as early as Roman times. (environmentalchemistry.com)
Widespread2
- These errors have received widespread publicity in the media (such as the asbestos-in-crayons story) and have caused unwar- ranted reformulation of harmless products. (rjlg.com)
- A bankruptcy judge slashed by 90% the amount gasket manufacturer Garlock Sealing Technologies owes asbestos plaintiffs, citing the widespread practice of lawyers to inflate claims against the company by withholding evidence their clients were exposed to other sources of asbestos. (forbes.com)
Environmental Protec4
- Six mineral types are defined by the United States Environmental Protection Agency (EPA) as "asbestos" including those belonging to the serpentine class and those belonging to the amphibole class. (wikipedia.org)
- The mining there, from 1919 to 1990, led to the longest-running man-made environmental disaster in American history and an asbestos cleanup project by the Environmental Protection Agency (EPA) just now coming to a close. (asbestos.com)
- Most asbestos products were banned in the late 1970's by the Consumer Product Safety Commission and the Environmental Protection Agency. (newsociety.com)
- Last week, the U.S. Environmental Protection Agency was busy defending the Asbestos Hazard Emergency Response Act of 1986, and rebutting the report's conclusion that inadequate scientific research and misguided attempts to regulate the problem have led to an 'asbestos panic. (edweek.org)
Found17
- EPA's outdoor air testing for LAA in Libby and Troy indicates that asbestos air concentrations are now equivalent to those found in other Montana cities. (aiha.org)
- Chrysotile has been used more than any other type and accounts for about 95% of the asbestos found in buildings in America. (wikipedia.org)
- The following three references show that profusion reading of 1/0 can be found in non-asbestos-exposed factory workers, and in middle-aged smokers. (lakesidepress.com)
- The highest amphibole content, around 20%, is found in andesites. (wikipedia.org)
- Asbestos has been banned in Iceland from 1983 but can still be found in large amounts in buildings, ships and hot water pipes. (bioportfolio.com)
- Asbestos-containing materials (ACMs) can still be found in many homes in Australia and other countries. (bioportfolio.com)
- Asbestos has been found in at least 83 of the 1,585 current or former NPL sites. (cdc.gov)
- As more sites are evaluated, the sites at which asbestos is found may increase. (cdc.gov)
- It's found in almost all asbestos-based products available today, including brake linings, building materials, water and sewer pipes and insulation. (cancer.ca)
- Asbestos is found in a wide variety of commercial and industrial products. (bloggernews.net)
- The risk evaluation for asbestos can be found here . (exponent.com)
- Occasionally they are found as contaminants in asbestos containing materials. (ehso.com)
- The naturally occurring asbestos was found in Boulder City, Nevada, in the path of a construction zone to build a multi-million dollar highway called the Boulder City Bypass, the first stage of an I-11 corridor planned between Las Vegas and Arizona. (eurekalert.org)
- Asbestos can be found in tiles, insulation, paint, and cement as well as other items. (diamondcertified.org)
- However, evidence of the use of asbestos in pottery and chinking of log homes dating back 3000 BC has been found archeological digs in Scandinavia. (environmentalchemistry.com)
- Metallic ions found in different types of amphiboles include iron , magnesium , calcium , aluminum , and sodium ions. (newworldencyclopedia.org)
- Pargasite is a rare, magnesium-rich amphibole with essential sodium , usually found in ultramafic rocks. (newworldencyclopedia.org)
Toxicity2
- In this study, we conduct a comparative particle toxicity analysis of LA compared with standard reference asbestiform amphibole samples. (biomedcentral.com)
- Scientists are still researching the amount of asbestos that is in the soil in the construction area, its toxicity to humans, and how far it can be transported by wind. (eurekalert.org)
Vermiculite ore1
- This vermiculite ore was contaminated with fibrous and asbestiform amphibole in veins throughout the deposit. (cdc.gov)
Silicate3
- Amosite, a variety of the silicate mineral cummingtonite, which is a source of asbestos (see cummingtonite). (britannica.com)
- Amphiboles are composed of double-chain silicate (SiO 4 ) tetrahedra, which are linked at their vertices. (newworldencyclopedia.org)
- The chief differences between amphiboles and pyroxenes are that amphiboles contain essential hydroxide ions, and the basic structure of an amphibole is a double chain of silicate tetrahedra, as opposed to the single chain structure of pyroxene. (newworldencyclopedia.org)
Transmission electron m1
- MVA Scientific Consultants is pleased to announce the presentation of it s new course entitled:  Advanced Asbestos Analysis by Transmission Electron Microscopy  which will be offered for 3 days, March 8  May 10, 2005. (prweb.com)
Regulations3
- If you would like to learn more about the laws and regulations that govern asbestos, EPA maintains a listing of the laws and regulations applicable to asbestos. (ehso.com)
- The studies carried out in Québec in asbestos products factories and in the construction industry show that the current laws and regulations are not always enforced, thereby leading to the finding that asbestos is not used safely in these industries. (inspq.qc.ca)
- Furthermore, when employers and workers know that asbestos is present, it is difficult to enforce existing regulations because the protective measures are constraining. (inspq.qc.ca)
Hornblende1
- Samples of hornblende, a common type of amphibole. (newworldencyclopedia.org)