Asbestos, Amphibole: A class of asbestos that includes silicates of magnesium, iron, calcium, and sodium. The fibers are generally brittle and cannot be spun, but are more resistant to chemicals and heat than ASBESTOS, SERPENTINE. (From Hawley's Condensed Chemical Dictionary, 11th ed)Public Health: Branch of medicine concerned with the prevention and control of disease and disability, and the promotion of physical and mental health of the population on the international, national, state, or municipal level.Asbestos: Asbestos. Fibrous incombustible mineral composed of magnesium and calcium silicates with or without other elements. It is relatively inert chemically and used in thermal insulation and fireproofing. Inhalation of dust causes asbestosis and later lung and gastrointestinal neoplasms.Asbestosis: A form of pneumoconiosis caused by inhalation of asbestos fibers which elicit potent inflammatory responses in the parenchyma of the lung. The disease is characterized by interstitial fibrosis of the lung, varying from scattered sites to extensive scarring of the alveolar interstitium.Asbestos, Serpentine: A type of asbestos that occurs in nature as the dihydrate of magnesium silicate. It exists in two forms: antigorite, a plated variety, and chrysotile, a fibrous variety. The latter makes up 95% of all asbestos products. (From Merck Index, 11th ed, p.893)MontanaMesothelioma: 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)Asbestos, Crocidolite: A lavender, acid-resistant asbestos.Asbestos, Amosite: Asbestos, grunerite. A monoclinic amphibole form of asbestos having long fibers and a high iron content. It is used in insulation. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Adolescent Development: The continuous sequential physiological and psychological changes during ADOLESCENCE, approximately between the age of 13 and 18.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Journal Impact Factor: A quantitative measure of the frequency on average with which articles in a journal have been cited in a given period of time.Publishing: "The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.Bibliometrics: The use of statistical methods in the analysis of a body of literature to reveal the historical development of subject fields and patterns of authorship, publication, and use. Formerly called statistical bibliography. (from The ALA Glossary of Library and Information Science, 1983)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: The study of the structure, growth, function, genetics, and reproduction of bacteria, and BACTERIAL INFECTIONS.Authorship: The profession of writing. Also the identity of the writer as the creator of a literary production.Australia: The smallest continent and an independent country, comprising six states and two territories. Its capital is Canberra.Journalism, Medical: The collection, writing, and editing of current interest material on topics related to biomedicine for presentation through the mass media, including newspapers, magazines, radio, or television, usually for a public audience such as health care consumers.Terminology as Topic: The terms, expressions, designations, or symbols used in a particular science, discipline, or specialized subject area.Paleopathology: The study of disease in prehistoric times as revealed in bones, mummies, and archaeologic artifacts.ChicagoEnvironment: The external elements and conditions which surround, influence, and affect the life and development of an organism or population.Fungi: A kingdom of eukaryotic, heterotrophic organisms that live parasitically as saprobes, including MUSHROOMS; YEASTS; smuts, molds, etc. They reproduce either sexually or asexually, and have life cycles that range from simple to complex. Filamentous fungi, commonly known as molds, refer to those that grow as multicellular colonies.Academies and Institutes: Organizations representing specialized fields which are accepted as authoritative; may be non-governmental, university or an independent research organization, e.g., National Academy of Sciences, Brookings Institution, etc.Clothing: Fabric or other material used to cover the body.Hair: A filament-like structure consisting of a shaft which projects to the surface of the SKIN from a root which is softer than the shaft and lodges in the cavity of a HAIR FOLLICLE. It is found on most surfaces of the body.National Human Genome Research Institute (U.S.): Component of the NATIONAL INSTITUTES OF HEALTH. It conducts and supports research into the mapping of the human genome and other organism genomes. The National Center for Human Genome Research was established in 1989 and re-named the National Human Genome Research Institute in 1997.Forensic Anthropology: Scientific study of human skeletal remains with the express purpose of identification. This includes establishing individual identity, trauma analysis, facial reconstruction, photographic superimposition, determination of time interval since death, and crime-scene recovery. Forensic anthropologists do not certify cause of death but provide data to assist in determination of probable cause. This is a branch of the field of physical anthropology and qualified individuals are certified by the American Board of Forensic Anthropology. (From Am J Forensic Med Pathol 1992 Jun;13(2):146)Protective Clothing: Clothing designed to protect the individual against possible exposure to known hazards.Biodiversity: The variety of all native living organisms and their various forms and interrelationships.Informatics: The field of information science concerned with the analysis and dissemination of data through the application of computers.ColoradoUnited States Environmental Protection Agency: An agency in the Executive Branch of the Federal Government. It was created as an independent regulatory agency responsible for the implementation of federal laws designed to protect the environment. Its mission is to protect human health and the ENVIRONMENT.Access to Information: Individual's rights to obtain and use information collected or generated by others.National Institute of Diabetes and Digestive and Kidney Diseases (U.S.): Component of the NATIONAL INSTITUTES OF HEALTH. It conducts and supports basic and applied research for a national program in diabetes, endocrinology, and metabolic diseases; digestive diseases and nutrition; and kidney, urologic, and hematologic diseases. It was established in 1948.Conservation of Natural Resources: The protection, preservation, restoration, and rational use of all resources in the total environment.Information Dissemination: The circulation or wide dispersal of information.Ecosystem: A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)

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)

*Amphibole

... riebeckite is known as crocidolite or blue asbestos. These are generally called amphibole asbestos. Orthorhombic series ... Four of the amphibole minerals are among the minerals commonly called asbestos. These are: anthophyllite, riebeckite, ... Amphiboles are the primary constituent of amphibolites. Amphiboles are minerals of either igneous or metamorphic origin; in the ... Amphiboles are also specifically less dense than the corresponding pyroxenes. In optical characteristics, many amphiboles are ...

*UN number

There are some exceptions, for example NA 2212 is all asbestos with UN 2212 limited to Asbestos, amphibole amosite, tremolite, ...

*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 ...

*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, ...

*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 ...

*Asbestos

Amphiboles including amosite (brown asbestos) and crocidolite (blue asbestos) were formerly used in many products until the ... Chrysotile asbestos Asbestos fibers Asbestos Asbestos Blue asbestos (crocidolite). The ruler is 1 cm. Blue asbestos, teased to ... They are commonly known by their colors, as blue asbestos, brown asbestos, white asbestos, and green asbestos. Asbestos mining ... Asbestine List of minerals Asbestos abatement Asbestos and the law Asbestos Disease Awareness Organization Asbestos-ceramic ...

*Šumperk District

... amphibole, asbestos and magnetite crystals Petrov nad Desnou - staurolite crystals Maršíkov - beryl, chrysoberyl, columbite, ...

*In re Garlock Sealing Technologies, LLC

The chrysotile asbestos used in Garlock's gaskets is roughly 1/100 to 1/2000 as carcinogenic as the friable amphibole asbestos ... The asbestos contained by Garlock products is encased in a polymer-like substance. Garlock products only emit asbestos fibers ... Beginning in the 1930s, the asbestos industry engaged in a cover-up of the lethal of effects of asbestos that went on for ... which would establish a public database about the location and identity of asbestos and asbestos-containing products in the ...

*Oxyanion

In amphiboles, (of which asbestos is an example) two chains are linked together by sharing of a third corner on alternate ...

*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) Jet (fossilised ...

*Taconite

Because these conditions can be triggered by industrial asbestos, which was also used in taconite mining and processing, the ... The tailings contained 40% of the mineral series cummingtonite-grunerite, which, being in the amphibole group, form particles ... the US District Court judge ruled that the drinking water and Lake Superior must be protected from the asbestos-like particles ... pleural mesothelioma and other pleural conditions which occur following asbestos exposure. ...

*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 ...

*Asbestos and the law

In 1984, the import of raw amphibole (blue and brown) asbestos into New Zealand was banned. In 2002, the import of chrysotile ( ... Asbestos Licensing and the Control of Asbestos at Work Regulations) aimed at minimising the use and disturbance of asbestos ... Guidelines for Safe Usage of Asbestos Cement Products like Asbestos Cement Sheets and Asbestos Cement Blocks. IS 11769 Part 2: ... Asbestos was banned in South Africa in 2008. Prior to this, the country was one of the global leaders in asbestos production, ...

*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. ... asbestos MeSH D01.837.725.700.760.070.050 --- asbestos, amphibole MeSH D01.837.725.700.760.070.050.060 --- asbestos, amosite ... asbestos, amosite MeSH D01.578.725.500.050 --- asbestos, serpentine MeSH D01.578.725.500.800 --- talc MeSH D01.578.750.300 --- ... asbestos, amosite MeSH D01.837.725.700.760.535.400 --- asbestos, serpentine MeSH D01.837.725.700.760.535.800 --- talc MeSH ...

*Asbestos-related diseases

Amphibole fibers are not cleared as effectively as serpentines and therefore accumulate more readily in the distal lung ... Asbestos-related diseases are disorders of the lung and pleura caused by the inhalation of asbestos fibres. Asbestos-related ... Asbestos can cause lung cancer that is identical to lung cancer from other causes. Exposure to asbestos is associated with all ... Inhaled asbestos fibres enter the upper and lower respiratory tracts when asbestos is released into the air. Some of the ...

*Asbestos and the law (United States)

Manufacturers of some products containing only chrysotile fibers claim that these are not as harmful as amphibole-containing ... Asbestos abatement (removal of asbestos) has become a thriving industry in the United States. Strict removal and disposal laws ... "Asbestos Bill To Include 9/11, Storm Claims". Floor Daily. Retrieved 5 September 2017. "The Asbestos Epidemic in America". EWG ... The Environmental Protection Agency (EPA) has no general ban on the use of asbestos. However, asbestos was one of the first ...

*Asbestiform

Other asbestiform minerals include riebeckite, an amphibole whose fibrous form is known as crocidolite or "blue asbestos", and ... Asbestos Chrysotile Committee on Asbestos: Selected Health Effects, 2006, Asbestos: Selected Cancers, National Academies Press ... The most common asbestiform mineral is chrysotile, commonly called "white asbestos", a magnesium phyllosilicate part of the ... brown asbestos, a cummingtonite-grunerite solid solution series. ...

*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 ...

*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 ...

*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 ...

*Silicate minerals

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 - ...

*Asbestosis

There are two types of fibers: amphibole (thin and straight) and serpentine (curly). All forms of asbestos fibers are ... All types of asbestos fibers are associated with concerns. It is generally recommended that currently existing asbestos be left ... "Asbestos Toxicity". ATSDR Case Studies in Environmental Medicine. U.S. Department of Health and Human Services. "Asbestos ... "Asbestos". CDC. October 9, 2013. Retrieved 13 November 2015. The Health Effects of Asbestos: An Evidence-based Approach. 2015. ...

*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 ...

*Christopher Booker

... has repeatedly refuted his claims about asbestos. Booker has repeatedly claimed that white asbestos is "chemically identical to ... The risk differential between chrysotile and the two amphibole fibres for lung cancer is thus between 1:10 and 1:50. ... Structurally, asbestos or Mg3(Si2O5)(OH)4 consists of linear fibres, while talc or Mg3Si4O10(OH)2 consists of planar sheets. ... Thus he argues that asbestos, passive smoking and BSE have not been shown to be dangerous. His views on these matters go ...

*Cummingtonite

Amosite is a rare asbestiform variety of grunerite that was mined as asbestos only in the eastern part of the Transvaal ... Cummingtonite is a metamorphic amphibole with the chemical composition (Mg,Fe2+)2(Mg,Fe2+)5Si8O22(OH)2, magnesium iron silicate ... The origin of the name is Amosa, the acronym for the mining company "Asbestos Mines of South Africa". Cummingtonite is commonly ... Manganese also substitutes for (Fe,Mg) within cummingtonite amphibole, replacing B site atoms. These minerals are found in high ...
Environmental exposure to silicate compounds such as silica and asbestos has been associated with increased autoimmune responses and the development of autoimmune disease in humans. Residents of Libby, MT have experienced significant asbestos exposure due to an asbestos contaminated vermiculite mine near the community over several decades. Residents have developed numerous asbestos-related diseases as well as increased autoimmune responses. However, the exact mechanism by which Libby amphibole asbestos generates autoimmune responses is unclear. To elucidate a possible mechanism for asbestos induced autoimmunity, the cellular effects of Libby amphibole asbestos were characterized in vitro using a phagocytic murine macrophage cell line, which are characteristic of alveolar macrophages. Our results indicate that Libby amphibole asbestos generates oxidative stress in murine macrophages similar to crocidolite asbestos. However, Libby asbestos induces distinct cellular effects compared to crocidolite asbestos
Libby, Montana, a small town nestled in the northwestern corner of the state, is a humble town, a great destination for anglers and hunters. What many people don't know about Libby, is the lurking danger hanging over the heads of the 3,000 or so Libby residents. Located nearby is an old vermiculite mine that has created a health hazard dealing with asbestos. The old mine was used for acquiring vermiculite, that was used for insulation, shingles, and other construction materials. Imbedded in the vermiculite is a form of asbestos that was released into the air when the vermiculite was processed, creating an abundance of the fibers released into the atmosphere around Libby. The health risk, amplified by human activity, has always been a health hazard due to natural geologic deposits of vermiculite containing asbestos, in and around the Libby area.
Synonyms for amphibole in Free Thesaurus. Antonyms for amphibole. 8 words related to amphibole: mineral, amphibole group, amphibolite, nephrite, actinolite, anthophyllite, asbestos, hornblende. What are synonyms for amphibole?
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. Tremolite forms by metamorphism of sediments rich in dolomite and quartz. Tremolite forms a series with actinolite and ferro-actinolite. Pure magnesium tremolite is creamy white, but the color grades to dark green with increasing iron content. It has a hardness on Mohs scale of 5 to 6. Nephrite, one of the two minerals of the gemstone jade, is a green variety of tremolite. The fibrous form of tremolite is one of the six recognised types of asbestos. This material is toxic and inhaling the fibers can lead to asbestosis, lung cancer and both pleural and peritoneal mesothelioma. Fibrous tremolite is sometimes found as a contaminant in vermiculite, chrysotile (itself a type of asbestos) and talc. Tremolite is an indicator of metamorphic grade since at high temperatures it converts to diopside. Tremolite occurs as a result of contact metamorphism of calcium and magnesium rich ...
Gunter takes exception to a recent legal definition of asbestos; but there is more to that story. For over 70 years, the fibrous amphibole that is a major-not trace-constituent in the Vermiculite Mountain vermiculite deposit near Libby, Montana, was called tremolite, sodium-rich tremolite, or sodic tremolite by everyone including the mineralogists and geologists who studied the deposit. During the 1970s, the names of the regulated asbestos minerals, including tremolite asbestos, were entered into the U.S. Code of Federal Regulations. As recent court proceedings have revealed, company geologists, owners, and operators of the vermiculite mine near Libby understood that the asbestiform amphiboles in the mine fell under those regulations. In 1978 and 1997, committees of the International Mineralogical Association published new recommendations for amphibole nomenclature. Based on this new system of nomenclature, most of the amphibole minerals at the Libby mine were reclassified as winchite. When ...
Langer and Nolan, and Mossman and Gee, express several criticisms of our recent review of the amphibole hypothesis. Langer and Nolan suggested that we failed to present the amphibole hypothesis in a developmental perspective. Our objective was to put this hypothesis in a public health perspective. The scope of the amphibole hypothesis has been confusing to many, scientists and laypeople alike. We
We conducted experiments to examine the effect of amphibole-forming hydration reactions on mineral fabric development and the strength of mafic rocks. Both hydrostatic and general shear deformation experiments were conducted on powdered basalt with added water at lower continental crust conditions (800 °C, 1 GPa). Amphibole that formed under hydrostatic conditions exhibits a random lattice-preferred orientation (LPO). In contrast, amphibole formed during deformation exhibits both a strong shape-preferred orientation (SPO) and LPO with a [001] maximum aligned subparallel to the shear direction. Plagioclase in both hydrostatic and deformed samples shows a very weak to random LPO. At low effective strain rates (10−5 s−1 to 10−6 s−1), the stress exponent is ≈1-1.5, consistent with deformation accommodated by diffusion creep. The correlation of the SPO and LPO coupled with the rheological evidence for diffusion creep indicates that the amphibole fabric results from oriented grain growth ...
Anthophyllite is an amphibole mineral: ☐Mg2Mg5Si8O22(OH)2 (☐ is for a vacancy, a point defect in the crystal structure), magnesium iron inosilicate hydroxide. Anthophyllite is polymorphic with cummingtonite. Some forms of anthophyllite are lamellar or fibrous and are classed as asbestos. The name is derived from the Latin word anthophyllum, meaning clove, an allusion to the most common color of the mineral. Anthophylite is the product of metamorphism of magnesium-rich rocks, especially ultrabasic igneous rocks and impure dolomitic shales. It also forms as a retrograde product rimming relict orthopyroxenes and olivine, and as an accessory mineral in cordierite-bearing gneisses and schists. Anthophyllite also occurs as a retrograde metamorphic mineral derived from ultramafic rocks along with serpentinite. Geographically, it occurs in Pennsylvania, southwestern New Hampshire, central Massachusetts, Franklin, North Carolina, and in the Gravelly Range and Tobacco Root Mountains of southwest ...
Abstract: 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). The goal of this study was to ascertain if there is a relationship between particle morphology and extinction characteristics in monoclinic tremolite amphiboles. Six tremolitic amphiboles were chosen for this study: three are fibrous (five from natural sites (i.e., mining locales)) and one is the NIST SRM 1867a tremolite standard. The morphology of these tremolites ranged from blocky to asbestiform. A particle-by-particle analysis was performed to determine extinction characteristics and the number of EPA-defined asbestos characteristics. In general, zero or near-zero extinction angles correlate to the number of asbestiform characteristics. Exceptions to this occur when a non-fibrous tremolite has (100) parting as a result of twinning ...
... The versatility of Asbestos enabled it to used across a variety of industries these includeAsbestos is contained in some 3000 products manufactured world wide Construction Industry - used 2/3 of all asbestos Car Manufacturing Textile Industry Aerospace Industry Marine and Rail Transport industries ConstructionIndustry Car Manufacturing Textile Industry…
Ferro-edenite is an uncommon amphibole mineral. It is almost exactly the same as the more common amphibole mineral edenite, but contains more iron than magnesium thus the name ferro-edenite (ferro is latin for iron). The two minerals form a solid solution series in which the iron and magnesium substitute for each other. Edenite is the magnesium rich member. The two are similar in properties except that ferro-edenite is generally darker and denser. Ferro-edenite is related to the more well known amphibole, hornblende. Although hornblende is no longer an official mineral, it still serves as a general name for iron, magnesium, aluminum and calcium rich amphiboles of which ferro-edenite is one. In fact ferro-edenite had been referred to as "ferro-edenitic hornblende" before its adoption as an official and distinct mineral. Amphiboles like ferro-edenite, edenite and hornblende serve as important petrographic minerals. Their presence allows petrologists (rock scientists) to accurately gauge the ...
Amphiboles along the tremolite-pargasite join have been hydrothermally synthesized at 900°C, 3 kbar. Run products were characterized by optical and electron microscopy, powder X-ray diffraction and infrared spectroscopy. Under the experimental conditions used, there is complete solid-solution between tremolite and pargasite and the variation of cell parameters is linear as a function of composition. The infrared spectra in the principal OH-stretching region are consistent with the predictions of Hawthorne (1997) on local bond-valence grounds, and show strong short-range order of cations at the octahedral sites and strong coupling between Al at T(l) and Na at A. ...
Hornblende is an important constituent of many igneous rocks. It is also an important constituent of the rock known as amphibolite, formed by metamorphism of basalt.. Actinolite is an important and common member of the monoclinic series, forming radiating groups of acicular (needle-like) crystals of bright green or grayish-green color. It occurs frequently as a constituent of greenschists. The name (from Greek ακτις/aktis, a "ray" and λιθος/lithos, a "stone") is a translation of the old German word Strahlstein (radiated stone).. Glaucophane, crocidolite, riebeckite and arfvedsonite form a somewhat special group of alkali amphiboles. The first two are blue fibrous minerals, with glaucophane occurring in blueschists and crocidolite (blue asbestos) in ironstone formations-both result from dynamo-metamorphic processes. The latter two are dark green minerals that occur as original constituents of igneous rocks rich in sodium, such as nepheline-syenite and phonolite.. Pargasite is a rare, ...
This testimony concerns the response to NIOSH to the OSHA notice of proposed rulemaking to remove nonasbestiform tremolite (14567738), anthophyllite (17068789), and actinolite (77536664) from the asbestos standard. The testimony contains comments on a review of the literature by OSHA, studies by OSHA on exposure to nonasbestiform minerals, and fiber characteristics studies reviewed by OSHA. The te
T H Agriculture & Nutrition, L.L.C. used asbestos, exposing people to the dangerous mineral. Learn about financial assistance for victims at Mesothelioma.com.
Armstrong World Industries incorporated asbestos into its insulation and other construction products for much of the 20th century.
Many products contain asbestos, especially products used in the building industry. See a list of products including Hardiflex, Hardiplank and more.
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Tyler Pipe manufactured cast iron soil pipes and fittings for waste removal. The company was once owned by Swan Transportation but is now owned by McWane, Inc. in Birmingham, Alabama.
Tremolite Magnesiocoulsonite. Comments: Black grains of magnesiocoulsonite with green chromian tremolite. Metallic bronze grain of thiospinelid of kalininite-florensovite series is visible in the upper right corner of the image ...
Ferripedrizite, a new monoclinic BLi amphibole end-member from the Eastern Pedriza Massif, Sierra de Guadarrama, Spain, and a restatement of the nomenclature of Mg-Fe-Mn-Li amphiboles 976 ...
Oberti R , Camara F , Caballero J M , Ottolini L , The Canadian Mineralogist , 41 (2003) p.1345-1354, Sodic-ferri-ferropedrizite and ferri-clinoferroholmquistite: mineral data and, degree of order of the A-site cations in Li-rich amphiboles, Sequence number in the CNR-IGG database: SEQ 1039 ...
Amphibole Group. Mg-Fe-Mn-Li Clino-Amphibole Subgroup. Many tirodites described in the literature are in fact manganocummingtonite.
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At its peak, the Libby mine may have provided 80 percent of the worlds vermiculite, most of which was contaminated with what would become known as Libby Amphibole Asbestos. The contamination was not limited just to the mine site; Libby residents were able to pick up free truckloads of asbestos-contaminated vermiculite for use at home. The vermiculite was used to pave driveways and in public areas (boat ramps, ice rink, running track, baseball fields and school yards). Children played in piles of vermiculite that could be found throughout the community. Also, attic insulation contaminated with Libby asbestos may still be in schools, businesses and as many as 35 million homes around the United States alone ...
The accurate measurement of annual average mineral fiber concentrations at various air sampling sites provides the best index of non-occupational inhalation exposure to fibers in a community located near an industrial source of airborne amphibole fibers. The transmission electron microscope analysis of enough individual high volume air samples to provide annual average fiber concentrations is not feasible because of the great time and expense required. X-ray diffraction analysis of air samples collected on membrane filters over periods of several days offers a reliable measurement of amphibole mineral mass concentration. An excellent linear correlation (r = 0.94 for N = 12) exists between the amphibole mass concentrations (x-ray diffraction) and amphibole fiber concentrations (transmission electron microscope). The correlation equation is used to calculate amphibole fiber concentrations from over 300 x-ray diffraction analyses. The accuracy and precision of both techniques are discussed as well ...
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Asbestos is a naturally occurring rock forming mineral silicate in fibrous form belonging to the serpentine and amphibole groups. It occurs naturally in large deposits on every continent in the world. There are six types of naturally occurring asbestos fibres of which only three have been used commercially in Australia. These included the serpentine: Chrysotile (white asbestos); and the amphiboles: Crocidolite (blue asbestos) and Amosite (brown or grey asbestos). The other three non-commercially used amphiboles included Tremolite, Actinolite and Anthophyllite.. Asbestos has been used in the ancient world of the Egyptians, Greeks and Romans. It is believed that as early as 4000 BC, asbestos fibres were used for wicks in lamps and candles. Between 2000-3000 BC, embalmed bodies of Egyptian pharaohs were wrapped in asbestos cloth. The Greeks and Romans documented the harmful effects of asbestos fibres on those who mined the silken material from ancient stone quarries noting a "sickness of the lungs" ...
The U.S. Environmental Protection Agency has released early results on research being done in Libby, Montana to monitor the air quality and make progress towards cleaning up a town that has dealt with an increased risk of deadly asbestos exposure for decades now. The data, which was presented during a meeting at the Libby Memorial Center, was described as a preliminary "draft estimate." The final draft of the information will be used to determine how dangerous the air is in Libby after decades of Amphibole asbestos mining and attempts to decrease the risk of asbestos exposure in the future. "For more than a decade, EPA has worked in this community to clean up the pollution left behind by 40 plus years of mining operations. Under this administration, EPA has stepped up its commitment to provide the best science to finish the job of protecting the health and future of the people of Libby," said Jim Martin, the EPAs Regional Administrator in Denver. "Once we finalize these toxicity estimates, they ...
Cincinnati, OH - Workers exposed to low levels of an asbestos-like mineral from Montana more than two decades ago are at an increased risk for lung disease today, according to research from the University of Cincinnati (UC).. Vermiculite is a mineral with a flaky, fluffy-looking structure. Previous studies revealed that the vermiculite ore mined in Libby, Mont., contained increased levels of an asbestos-like mineral fiber that can become airborne and inhaled when used in manufacturing.. In a 25-year follow-up study of workers at a plant which stopped using Libby vermiculite in 1980, current chest X-rays revealed that 20 percent of workers who experienced low cumulative exposure to these fibers had changes in the lining around their lungs. In the group with the highest exposure, changes on chest X-rays were noted in 54 percent of workers.. James Lockey, MD, senior research investigator, says the study indicates that this particular asbestos-like mineral contained in the Libby vermiculite ore can ...
Case opinion for US 3rd Circuit IN RE: ASBESTOS PRODUCTS LIABILITY LITIGATION (No. VI). Read the Courts full decision on FindLaw.
A study is to be performed into the effects that vermiculite mining has had on the health of residents and their offspring in the town of Libby in Montana. This is where the W R Grace vermiculite mine was located, and the town has a high rate of asbestos cancer.. An announcement was made by researches from the Mount Sinai School of Medicine who confirmed that they would be carrying out a study into the effects of vermiculite mining on the health of those that have been living in Libby. The study will be a three phase one.. ...
Amphibole (Angel Phantom) Quartz is a quartz that contains inclusions of minerals in varied amounts and proportions, including Riebeckite, Actinolite, Tremolite, Richterite and Lithium. These show as opaque inclusions in layers or cloudy deposits, in a range of colours including white, yellow-gold, red, orange and plum. Even though not all minerals might be visible within the specimen the energies of the crystals will resonate in much the same way, the influence of the minerals becoming an integral part of their makeup.As the name suggests, many find this crystal useful in accessing and working with the Angelic Realms, although its clarity and colouring may affect the effectiveness of this. I have found that the energies of this crystal to be quite complex, and thus perhaps I feel that it aids connection with Higher intelligences that have more complex information to convey, or with those Angelics who wish to work with us on complex issues that mean a bit of hard work on our part! Not then for fluffy
2017 Elsevier B.V.Primary ore-forming minerals retain geochemical signatures of magmatic crystallization information and can reveal the petrochemical conditions prevalent at the time of their formation. The Baogutu deposit is a typical reduced porphyry Cu deposit. Amphibole and biotite Fe3+/SFe ratios, minerals (feldspar, biotite, amphibole, zircon and apatite), in situ elemental and apatite Nd isotopic compositions were determined by Mössbauer spectroscopy, electron probe microanalysis, and laser ablation multiple-collection inductively coupled plasma mass spectrometry, respectively, to investigate the magma oxidation state, petrogenesis, source features, and to constrain the carbon species at magmatic stages for the intrusive phases. The results show that the primary plagioclase and amphibole in the mineralized diorite to granodiorite porphyry and post ore hornblende diorite porphyry are distinct (An26-55 versus An60-69; Mg-hornblende versus tschermakite). In particular, the amphibole shows ...
RATIONALE: Studying samples of body fluid and blood from patients who have been exposed to asbestos or vermiculite in the laboratory may help doctors learn more about changes that may occur in DNA and identify biomarkers related to cancer.. PURPOSE: This laboratory study is looking for biomarkers to detect mesothelioma early in patients exposed to asbestos or vermiculite. ...
Many people wonder if they are, or have been, subject to the risks of asbestos exposure. Health hazards from asbestos dust have been recognized in workers exposed in shipyards, power generating stations, oil refineries, steel mills, paper mills, foundries, asbestos mining and milling, manufacturing of asbestos textiles and other asbestos products, insulation work in the construction and building trades, auto mechanics, and a variety of other trades. Demolition workers, drywallers, plumbers, electricians, carpenters, sprinkler fitters, ironworkers, and firefighters also may be exposed to asbestos dust. People whose work brings them into contact with asbestos workers who renovate buildings with asbestos in them, for example may inhale fibers that are in the air: this is called occupational exposure. Workers families may inhale asbestos fibers released by clothes that have been in contact with ACM: this is called paraoccupational exposure. People who live or work near asbestos-related operations ...
In a controversial article, The Great Asbestos Hysteria (Mail, February 23), we said that according to the Health and Safety Executive, the risks from white asbestos products are insignificant, and arguably zero in the case of lung cancer. The HSE assessments related to specific levels of exposure to white asbestos fibres, not white asbestos products, and found a risk from higher levels. The article said that asbestos in UK schools is almost all white. According to the HSE, the more harmful brown asbestos was also frequently used in schools. The writer was in error in saying that the HSE had been forced to withdraw a series of commercials claiming that mesothelioma kills 4,500 a year. In fact, the advertisements were based on an estimate of 4,000 deaths from all asbestos-related disease.
There are six main types of asbestos, broken into two separate categories. These two categories are:. Serpentine: meaning snake like or curly in appearance. Amphibole: characterized by straighter fibers. The serpentine group has only one member - chrysotile, which accounts for over 90% of all asbestos in world production. This asbestos is white or green in color and is often used as insulation or for fireproofing products. With its widespread usage, chrysotile is responsible for most asbestos-related health problems.. The amphibole group contains the other five types of asbestos. Of these, amosite and crocidolite are the only two used for commercial purposes. These two are characterized by strong, stiff fibers and are consider highly dangerous when these airborne fibers are inhaled or ingested.. Amosite, brown-asbestos, had been banned in many countries for decades but it was still being commercially produced up until this last decade. At one time, it accounted for 5% of the asbestos used in ...
opens as PDF 1.4 MB). Favourite quote? "Asbestos cement used in India is free from all health hazards." AK Saraf, Chairman of the Asbestos Cement Products Manufacturers Association, India. CSR recommendation: Companies must adopt global policies for avoiding the use of new asbestos products and carefully manage in-place asbestos products in existing infrastructure. Update: Please see a letter in response to this posting below the fold from Ban Asbestos Network of India (BANI) - the organisation that published the book. His letter is well worth reading and offers a powerful condemnation of the quote by AK Saraf above. This is with reference to a piece "Killing the Future: Asbestos use in Asia" on your website published on 8th August, 2007.. BANI objected to the statement of A K Saraf of Asbestos Cement Products Manufacturers Association quoted in the piece is highly misleading. In India the asbestos industry has mastered the art of misinformation campaign. The statement is an expression of the ...
In 2011, Libby, Montana residents were considering a $43 million asbestos settlement with W.R. Grace & Company, which operated vermiculite mines in town.
Occurrence in Wales: Blake (1888) provided the first description of glaucophane from the British Isles, reporting its occurrence in rocks of his ‘Monian System’ [now known as the Aethwy Terrane or Blueschist Belt (Gibbons & Horák, 1990)] from near Llanfairpwllgwyngyll, Anglesey. Blake’s identification was confirmed by Greenly (1919) who also noted zoning in the amphiboles with green ‘hornblende’ core passing outwards into blue rims. Holgate (1951) provided a chemical analysis on separated rims, but suggested that as the blue amphibole contained a higher Fe3+ to Aliv content, it was crossite and not glaucophane. Macpherson (1983) recalculated Holgate’s analysis and, applying the new IMA amphibole classification, deemed them to be magnesio-arfvedsonites. New microprobe data (Horák & Gibbons, 1986; Gibbons & Gyopari, 1986) showed that the rims fall within the glaucophane-ferroglaucophane series. The Anglesey blueschists occur as poorly-exposed scattered ...
Asbestos, yarn, rope, cloth, tape, lagging rope, graphite gland packaging, bake liner, pife impregnated, pure ptfe pkg., mill board sheet Asbestos, yarn, rope, cloth, tape, lagging rope, graphite gland packaging, bake liner, pife impregnated, pure ptfe pk. ...
C551 / C551M-07(2019) Standard Specification for Asbestos-Cement Fiberboard Insulating Panels insulating panels~ asbestos-cement panels~
Asbestos is not one but a group of minerals which all occur naturally as thin fibres. It is this small size however that means they can cause various problems as they can float in the air and be easily breathed in to cause problems in the lungs. The different minerals however of course are slightly different in their appearance and in their effect. Amphibole is made of straight fibres that are much like needles. Amphiboles however are a category themselves and include: actinolite, anthophylite, amosite, crocidolite and termolite. The most commonly found asbestos in commercial products that most people suffer from is chrysotile. Health Problems. Asbestos causes a number of health problems and this is as a result of its being breahted into the lungs. Of the health complications that asbestos can cause, the most common are: asbestosis, mesothelioma and lung cancer. Absestosis is caused by the physical presence of asbestos in the lungs which causes scarring and fibrosis. Mesothelioma meanwhile is a ...
Prior to the late 1970s, the health hazards of asbestos exposure were a closely guarded secret by the large corporate and business interests involved in the manufacture and sales of asbestos products. Evidence of the connection between asbestos exposure and respiratory disease existed as far back as 1897; by 1931, the use of asbestos was tightly regulated in the U.K.. No such regulations existed in the U.S., however. Although scientific studies (many commissioned by asbestos and insurance corporations themselves) clearly showed that asbestos was the cause of respiratory disease, the industry itself engaged in a conspiracy of silence. Even the U.S. government was complicit, although government agencies did in fact issue safety guidelines in 1943. These "guidelines" did not have the force of law, however, and were rarely enforced ...
In the YouTube video above, Mrs. Edith Hernandez talks about her husband and his mesothelioma treatment. Like many other mesothelioma patients, he was exposed to asbestos products. He was in the army and handled asbestos products and equipment. The symptoms of his mesothelioma did not appear till many years after the conclusion of World War…
The cause of the disease is linked to the exposure to asbestos, and shipbuilding throughout the world featured hundreds of asbestos products used for insulation, including those vessels used in the British Armed Forces. The material was considered ideal for use aboard ships until the 1980s. Asbestos could be found in the engine and boiler rooms, as well as in the walls, floors and ceilings of rooms such as the sleeping quarters and the galley. Both shipbuilders and those who served on military vessels could have inhaled airborne asbestos fibres while working on the ships ...
Its a fair complaint, on its face. I get plenty of those press releases from environmental groups and read those same news stories, and the only consistent reporting Ive seen about Libby over the last few years has been from New West.net. But the question is whether thats because the media or activists or environmental groups care less about people than, say, polar bears, or wolves, or reforming an archaic mining law that stacks the deck in favor of the W.R. Graces of the world to exploit communities along with the natural resources theyre after. I think there are a number of factors at play here to account for the relative quiet about Libby, and few of them have to do with a lack of horror at what has happened to the people of Libby. And probably none of them made that jury in Missoula acquit Grace and the former executives of the company. The tunnel vision of interest groups is legendary. No matter the issue area, these groups find a niche, and stick in it, often working at odds with ...
... is well recognized as a health hazard and is highly regulated. An estimated 1.3 million employees in the construction and general industry face significant asbestos exposure on the job. Heaviest exposures occur in the construction industry, particularly during the removal of asbestos during renovation or demolition. Employees are also likely to be exposed during the manufacture of asbestos products (such as textiles, friction products, insulation, and other building materials) and during automotive brake and clutch repair work.. OSHA and the Environmental Protection Agency (EPA) asbestos rules are intertwined.. For further information concerning this topic, please refer to this OSHA website.. Training for this topic may be found at ESAMS or Navy Knowledge Online.. ...
... is well recognized as a health hazard and is highly regulated. An estimated 1.3 million employees in the construction and general industry face significant asbestos exposure on the job. Heaviest exposures occur in the construction industry, particularly during the removal of asbestos during renovation or demolition. Employees are also likely to be exposed during the manufacture of asbestos products (such as textiles, friction products, insulation, and other building materials) and during automotive brake and clutch repair work.. OSHA and the Environmental Protection Agency (EPA) asbestos rules are intertwined.. For further information concerning this topic, please refer to this OSHA website.. Training for this topic may be found at ESAMS or Navy Knowledge Online.. ...
Objectives Cancer risk has been estimated for asbestos production workers or other heavily exposed asbestos workers in numerous studies. The bulk of the asbestos epidemic results come, however, from past intermittent exposures during asbestos product use. This study concentrated on estimating the risk of cancer in such a population.. Methods Altogether 23 285 men and 930 women invited to a nationwide screening campaign for benign asbestos-related diseases in 1990-1992 were followed for cancer through the Finnish Cancer Register up to 1998. Standardized incidence ratios (SIR) were calculated in comparison with the total Finnish population.. Results Altogether 1392 cases of cancer were found among the men. The risk was slightly, but significantly elevated for lung cancer [SIR 1.14, 95% confidence interval (95% CI) 1.01-1.26), mesothelioma (SIR 2.77, 95% CI 1.66-4.31), and prostate cancer (SIR 1.21, 95% CI 1.09-1.34). The risk of lung cancer was slightly higher among the invited nonparticipants ...
Asbestos Minerals for Sale, Amphibole and Serpentine, Chrysotile, Actinolite, Amosite, Grunerite, Tremolite, Riebeckite and more! Asbestos Art Paper and the Philadephia Academy of Science Asebstos Collection.
frontend_meta_description_object_show_Sculpted nephrite fibula decorated with a dragon and a quilong. China, modern Height : 3 cm (1.2 in.) - Length : 15,5 cm (6.1 in.)
West African jade semiprecious stone beads are a deep green color and nephrite jade in a variety of shapes and sizes and are for sale online in the natural gemstone section at the Harlequin Beads and Jewelry bead store. Choose from round, oval and more st West African Jade
You can dispose of asbestos by using a private licensed asbestos removal contractor or carrying out the work yourself.. In this case you will need to make an appointment to deliver the prepared waste to the Merseyside Recycling and Waste Authority (MRWA). This is a disposal service available to Merseyside residents with cement bonded asbestos products only.. ...
It was also useful for roofing, fireproofing and soundproofing. Asbestos was used for boiler insulation and steam water pipes in the shipping industry. Until somebody manages to fabricate a remedy for asbestos-related diseases the best advice that can be provided is to make sure that you and others deflect any contact with the material. So its 2012 and we still find ourselves talking regularly about the dangers of asbestos to those in the building industry to the public in general. It doesnt necessarily matter if you are a patient in the chair in the doctors office when you hear the word; or, if you are talking with a friend who says did you hear so-and-so has cancer ...
Authorisation No 465: to permit the carriage of UN 2212 waste asbestos, Amphibole and UN 2590 waste asbestos, Chrysotile when special provision 168 cannot be utilised. ...
Washington was quick to react to the Libby commutation Monday. WASHINGTON (CNN) -- Following are reactions to President Bushs announcement Monday that he has commuted the sentence of former vice presidential chief of staff Lewis Scooter Libby: Melanie Sloan, legal counsel to Joe and Val...
Hello everyone :) Im Libby from Cooking With Libby. I want to thank Lark for this wonderful opportunity to do a guest post on her site today. Lark and I work together over at Country Cooks Across America and let me tell yall, it was has been such a pleasure working with her! She not only has become a foodie sister, but also a best friend. I cant tell you how many phone calls we have made to each other and how many text messages we send to each other every day. Its awesome! Shes awesome! And this is why its such a great honor to be able to do this for her today :) Before I get to the recipe, let me tell yall a little about me. Im a Military Wife of 9 years to the most wonderful man on the planet. We are stationed at Barksdale Air Force Base in the northern part of Louisiana. I am also a Stay at Home Mom to two of the most beautiful and crazy children who are under the age of 5. It can be insanely chaotic over here at times, but I love it! ...
Nephrite can be found in a creamy white form (known in China as "mutton fat" jade) as well as in a variety of green colours, whereas jadeite shows more colour variations, including blue, lavender-mauve, pink, and emerald-green colours. Of the two, jadeite is rarer, documented in fewer than 12 places worldwide. Translucent emerald-green jadeite is the most prized variety, both historically and today. As "quetzal" jade, bright green jadeite from Guatemala was treasured by Mesoamerican cultures, and as "kingfisher" jade, vivid green rocks from Burma became the preferred stone of post-1800 Chinese imperial scholars and rulers. Burma (Myanmar) and Guatemala are the principal sources of modern gem jadeite, and Canada of modern lapidary nephrite. Nephrite jade was used mostly in pre-1800 China as well as in New Zealand, the Pacific Coast and Atlantic Coasts of North America, Neolithic Europe, and south-east Asia. In addition to Mesoamerica, jadeite was used by Neolithic Japanese and European cultures ...
I saved the worst for last. Libby and I are both pretty even keeled. Very seldom am I aroused to the point of rage. Even less often for Libby. The other day was one such case. We were at the public dock in Vergennes. Libby was on the boat and I was up in the village. Libby suddenly sensed the boat moving. She looked outside. She found a man (a becker) had untied all our lines and was moving our boat. He didnt ask for permission. He didnt even knock on the hull to warn occupants. Such a monumental breach of etiquette calls for a punch in the nose. Libby became enraged and jumped out of the boat to verbally carve the guy a new one. He just gestured that he didnt understand what she said. Double rage. As she returned to the boat, another becker who witnessed the whole thing put it all in perspective. He said, "Its not all of us ...
Claires recently did a major makeup recall after finding some of the glitter products contain tremolite asbestos. Read on for the facts.
Cabinet Peaks Medical Center in Libby, MT - Get directions, phone number, research physicians, and compare hospital ratings for Cabinet Peaks Medical Center on Healthgrades.
Over at the Huffington Post we find John Amato huffing and posting about what Libby complained about when he called Tim Russert in July 2003. Jeralyn Merritt has background as well. Well. Mickey Kaus gave a very plausible answer to...
Libby Brooks: Working on a city farm offers a profound insight into the dislocation that so blights the lives of children - and adults
Over at the Huffington Post we find John Amato huffing and posting about what Libby complained about when he called Tim Russert in July 2003. Jeralyn Merritt has background as well. Well. Mickey Kaus gave a very plausible answer to...
The study was performed in central-northern Anatolia (from Ankara to Amasya) to investigate the relationships of the Sakarya Zone units and the Izmir-Ankara-Erzincan suture (IAES) melange. It reveals that all the Sakarya Zone units are metamorphic and three main tectonostratigraphic units have been distinguished for the first time: the BAA (metasiliciclastic rocks capped by metacarbonates and varicoloured phyllite), the BKC (poly-metamorphic garnet-bearing micaschist and metabasite with a well-preserved relict HP-LT amphibole in a low-amphibolitic to greenschist-facies framework) and the AMC (meta-arkose passing vertically to carbonate-phyllitic alternations and, then, to a thick succession of prevailing acidic to intermediate-basic metavolcanites and volcanic-rich metasediments). The BAA and AMC, whose metamorphic frameworks are of Cimmerian age, underlie the Mesozoic carbonate cover sequences (e.g. t2-3, j3-k1) that often show tectonic detachments and slicing. The piling up of the BAA above ...
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The importance of the visual system is attested by the magnitude of its representation in the central nervous system (CNS). A large part of the cerebrum is committed to vision, including the visual control of movement and the perception of printed words, and the form and color of objects. The optic nerve, which is a CNS structure, contains more than a million fibers (compared to 50,000 in the auditory nerve). The visual system also has special significance in that study of this system has greatly advanced our knowledge of both the organization of all sensory neuronal systems and the relation of perception to cognition. Indeed, we know more about vision than about any other sensory function. Furthermore, the eyes, because of their diverse composition of epithelial, vascular, neural, and pigmentary tissues, are virtually a medical microcosm, susceptible to many diseases, and its tissues are available for inspection through a transparent medium. ...
Servings Per Recipe: 4; Amount Per Serving: cal. (kcal): 119, Fat, total (g): 8, chol. (mg): 8, sat. fat (g): 2, carb. (g): 8, Monounsaturated fat (g): 4, Polyunsaturated fat (g): 1, fiber (g): 2, sugar (g): 4, pro. (g): 7, vit. A (IU): 292, vit. C (mg): 4, Thiamin (mg): , Riboflavin (mg): 1, Niacin (mg): 4, Pyridoxine (Vit. B6) (mg): , Folate (µg): 28, Cobalamin (Vit. B12) (µg): , sodium (mg): 377, Potassium (mg): 616, calcium (mg): 121, iron (mg): 1, Percent Daily Values are based on a 2,000 calorie diet. ...
Baby Citrus Cheesecakes). Servings Per Recipe 12, Folate (µg) 12, Polyunsaturated fat (g) 1, Niacin (mg) 0, sat. fat (g) 10, Pyridoxine (Vit. B6) (mg) 0, Monounsaturated fat (g) 5, Fat, total (g) 18, Thiamin (mg) 0, chol. (mg) 86, Riboflavin (mg) 0, pro. (g) 5, vit. A (IU) 486, iron (mg) 0, carb. (g) 15, Potassium (mg) 61, calcium (mg) 40, cal. (kcal) 232, Cobalamin (Vit. B12) (µg) 0, sugar (g) 12, sodium (mg) 122, vit. C (mg) 0, fiber (g) 0 ...
Snowflake Mix). Monounsaturated fat (g) 1, sat. fat (g) 14, Niacin (mg) 2, Polyunsaturated fat (g) 0, Trans fatty acid (g) 0, Pyridoxine (Vit. B6) (mg) 0, Mark as Free Exchange () 0, cal. (kcal) 437, iron (mg) 4, sugar (g) 43, calcium (mg) 61, fiber (g) 1, Cobalamin (Vit. B12) (µg) 1, Folate (µg) 32, chol. (mg) 3, Riboflavin (mg) 0, Fat, total (g) 20, Thiamin (mg) 0, Potassium (mg) 76, vit. C (mg) 2, carb. (g) 56, sodium (mg) 241, vit. A (IU) 194, pro. (g) 3 ...
The price tag on the cleanup exceeded $540 million last year. It will cost an estimated $64 million and take at least four more years for the EPA to finish its work, according to documents released Monday. Even after thats done, hazardous asbestos will remain beneath the soil and in the walls of many houses, where it was used for insulation. Health workers have estimated that as many as 400 people have died and almost 3,000 have been sickened from exposure in Libby and the surrounding area.
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Really who are you kidding? You work an 8-12 hour shift then go home. I trained in the "old days" too and simply the patients in hospital were not sick as they are now (by the way when is the last time you managed an admitted patient?). The days of a patient with a DVT sitting inhouse for 5-7 days on a heparin gtt waiting to become therapeutic on coumadin are long over. But hey, dont believe me, Ive just managed inpatients for over 20 years, I am sure you know better than I. You also gave NO DATA to support your statements about errors with work hours. Your opinion is fine, but opinions are like assholes, everybody has one. From the data I have read, the results area at best conflicting. Personally, I think work hours are not a bad idea as long as the residents are reading off the clock. I am saying that as someone who has taken real 36 hour call for the better part of two decades, not an ER doc who did it for has internship year off-service, and since then has worked 8-12 hour shifts. Your ...
Really who are you kidding? You work an 8-12 hour shift then go home. I trained in the "old days" too and simply the patients in hospital were not sick as they are now (by the way when is the last time you managed an admitted patient?). The days of a patient with a DVT sitting inhouse for 5-7 days on a heparin gtt waiting to become therapeutic on coumadin are long over. But hey, dont believe me, Ive just managed inpatients for over 20 years, I am sure you know better than I. You also gave NO DATA to support your statements about errors with work hours. Your opinion is fine, but opinions are like assholes, everybody has one. From the data I have read, the results area at best conflicting. Personally, I think work hours are not a bad idea as long as the residents are reading off the clock. I am saying that as someone who has taken real 36 hour call for the better part of two decades, not an ER doc who did it for has internship year off-service, and since then has worked 8-12 hour shifts. Your ...
Q: I re-cently found out that I have high blood pres-sure. Are there any foods that can help with this? Thanks, Greg. There are many life-style fac-tors that can in-flu-ence blood pres-sure, and diet is cer-tainly one of these.. There are a few dif-fer-ent di-etary pat-terns that are as-so-ci-ated with low-ered blood pres-sure, but the com-mon thread among these is a high plant con-sump-tion - plenty of veg-eta-bles as well as some nuts and seeds, fruit and whole-grains (for peo-ple who di-gest these well).. There are also cer-tain nu-tri-ents that have been shown to af-fect blood pres-sure.. A: MAG-NE-SIUM. Blood pres-sure is es-sen-tially a mea-sure of the re-sis-tance in the blood ves-sels to the flow of blood, so it is in-flu-enced by the di-am-e-ter of our blood ves-sels. Mag-ne-sium has a re-lax-ing ac-tion and helps to reg-u-late blood pres-sure by min-imis-ing con-stric-tion of the blood ves-sels. Food sources of. Ask Dr Libby. Email your ques-tions for Dr Libby to ...
Ehhh, what do we expect, anyway? Karl Rove will continue to play a role in the Bush administration, regardless of if he is suspected, indicted, or convicted of any wrondoing. And the Bush administration will carry on with its agenda, and Grover Norquists agenda, and the far-rights agenda. Nothing much will change until the makeup of the Legislative and Executive branches is changed ...
In reply to a few things-- Naming the pump--mine has multiple names, it started as Frankie, then Huey 2 (thanks Mag) and most recently Libby (the liberator) I dont call it a name, but Libby would be the most accurate. Someone asked about sets--personally I use rapids, I spent 5 months of hating all infusion sets and now Im considering getting off rapids--I have the least crimps (although yesterday I ended up high with ketones--b/c tape came off more than i thoguht) but the only complaint about rapids I have is they dont disconnect and the sport case is bulky to shower with...that and warm weather and me after 9 months do NOT mix with sets, mine now is less than a day old and already coming out.. A1cs...wow! i still remember them all including the highest in years back in november, to one I got yesterday which *I* am very proud of. That, and pumping you really learn a lot. Ive met a bunch of great people, become a big time trouble shooter and had some great control. I finally added DAILY ...
Sigma-Aldrich offers abstracts and full-text articles by [Kircher, MF; Grimm, J; Swirski, FK; Libby, P; Gerszten, RE; Allport, JR; Weissleder, R].
I have had the great honor of working with Libby Jenkinson, author of the website Ditch The Carbs, herself a mother of young children. As I too am a mother of young children, we have worked together to help provide practical advice on raising healthy kids. Hope you find the information and resources helpful. Healthy…
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The federal governments Agency for Toxic Substances and Disease Registry conducted a review of vermiculite from the now notorious Libby Montana mine. This review, which they called the National Asbestos Exposure Review, is available on the web here: http://www.atsdr.cdc.gov/asbestos/sites/national_map/. Vermiculite is a mineral which was used for many things, and most vermiculite does not pose a significant health hazard. The vermiculite from Libby had asbestos in it. Its a tragic story how the asbestos almost destroyed that town - so many health problems. When the vermiculite was shipped out, the asbestos hazard went with it. The NAER investigated major places where this vermiculite was processed from the early 1920s through 1990.. ...
We analyzed chrysotile and chrysotile-associated amphibole (largely tremolite) asbestos fibers in 21 workers exposed to various types of processed (milled) chrysotile ore, 20 long-term chrysotile miners, and 20 members of the general population (controls). Significantly greater amounts of both chrysotile and tremolite were found in processed-ore workers and miners than in controls. On average, the mean fiber lengths and aspect ratios for the mining and processed-ore-exposed workers were similar and were significantly greater than the values seen in the controls; within the processed-ore group, there was a marked variation in these parameters, and some workers appeared to be exposed to fairly long, thin fibers. It was found empirically that the fiber size data, and to a lesser extent the concentration data, could be used to classify workers accurately into those with processed-ore exposure and controls. We conclude that fiber sizes in the lungs of processed-ore-exposed workers are similar to those of
Recognized as one of the six types of asbestos, tremolite is considered to be one of the more deadly forms of asbestos due to its long, sharp, needle-like fibers that are easily inhaled and embedded in the soft tissue of the lungs and surrounding organs. Tremolite is generally found in other minerals such as vermiculite, which is a type of magnesium aluminum silicate material used for construction and agriculture.. The small town of Libby, Montana was most affected by this hazardous material when nearly 10% of the population died from asbestos-related diseases after decades of mining vermiculite exposed the residents and workers to the toxic dust. Its estimated that 400 residents have passed away with another 3,000 still suffering from asbestosis and mesothelioma, a cancer that affects the lining of the lung and is almost always fatal. The high fatality rate in the small town of Libby, Montana warrants a more thorough investigation of the characteristics of tremolite asbestos. OSHA consistently ...
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Unusually high incidences of asbestos-related mortality and respiratory disease in the town of Libby, Montana, have been linked to amphibole mineral fibers intergrown with the vermiculite deposits ...
Denver, Colo. - March 11, 2008) W.R. Grace, a global supplier of specialty chemicals, has agreed to pay $250 million, the highest sum in the history of the Superfund program, to reimburse the federal government for the costs of the investigation and cleanup of asbestos contamination in Libby, Mont., the Justice Department and Environmental Protection Agency (EPA) announced today. The action settles a bankruptcy claim brought by the federal government to recover money for past and future costs of cleanup of contaminated schools, homes and businesses in Libby. The EPA has been removing asbestos-contaminated soils and other materials in and near Libby since May 2000. The federal government filed suit against W.R. Grace in March 2001 to recover its investigation and cleanup costs under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), commonly known as the "Superfund" law. The lawsuit also named Kootenai Development Corporation-a W.R. Grace subsidiary-as a defendant ...
A plumbing company is facing a lawsuit brought by the family of a now-deceased plumber who allege his mesothelioma was caused by asbestos exposure at A. Mormile Plumbing & Heating of Amsterdam.. The lawsuit alleges that the plumbers death was the result of mesothelioma caused by repeated exposure to asbestos dust and fibers, said The Leader-Herald. The lawsuit also accuses A. Mormile Plumbing & Heating of being negligent for not warning employees or its consumers about the dangers of asbestos, for not advising employees of the need for protection when exposed to asbestos, for neither enforcing nor adopting safety protocols, for not removing "their asbestos products from the stream of commerce despite knowledge of the unsafe and dangerous nature of those products," and for not testing its products for hazards.. The lawsuit also alleges that A. Mormile Plumbing & Heating should have known "their asbestos products would cause the release of asbestos fibers and dust into the ambient air, creating ...
Denver, Colorado - May 3, 2011) At a public meeting at the Libby Memorial Center this evening, the U.S. Environmental Protection Agency presented new draft toxicity estimates on the specific type of asbestos in Libby and Troy, Montana. These toxicity estimates, when final, will help secure the best path forward for asbestos cleanup and protection of public health at the Libby Superfund site. The Agency is releasing this draft information earlier than usual in the scientific evaluation process to be more transparent and to more fully engage the community in the review process. The data are preliminary and could change until this review process is complete, which will include review by independent scientists. ...
Some research points to get the fact that asbestos fibers have been inhaled more can cause physical irritation resulting in mesothelioma than cancer caused by a chemical reaction naturally. As a fiber that has been inhaled through the mouth and nose they are cleared from the body by way through the mucus in the nose, throat and airways when coughing or vomiting. Amphibole fibers (long and thin) can not be easily removed and therefore the carcinogenic substances left behind and embedded into the lining of the chest, lungs or stomach which causes scarring and inflammation that increases the risk of mesothelioma cancer. Symptoms of mesothelioma can be detected fastest ten years after exposure and can incubate for forty years ...
If someone is diagnosed with lung cancer and has a history of asbestos exposure, it is important to see an asbestos specialist lawyer. Even if a nonsmoker with lung cancer doesnt recall when they were exposed, they may have been in contact with asbestos fibers. In UK and in US asbestos products were widely used in construction products ...
JANUARY 21, 2011. VANCOUVER -NDP MPs Libby Davies (Vancouver East) and Don Davies (Vancouver Kingsway) joined by Federal New Democrat Health Critic, Megan Leslie, MP (Halifax), today served notice that the New Democrats will fight for a stronger public health care system in the upcoming Parliamentary session. This follows a public forum held yesterday in Vancouver at which a diverse panel of experts provided their ideas for public discussion.. "Under the Conservatives and Liberals before them private, two-tier medicine has established a toe-hold in this country," said Leslie. "At the same time they have allowed the public system to deteriorate to the point that waiting lists are causing great public concern.. "This is unacceptable and must be reversed," said Leslie.. Libby Davies, NDP House Leader said that defending and expanding medicare will be a strong focus of this Parliamentary session. "New Democrats started medicare. Were going to work to protect and enhance it," said Libby ...
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Asbestos is made up of microscopic bundles of fibers that may become airborne when distributed. When these fibers are inhaled into the lungs, potential health problems may occur. If you believe that you have been exposed to asbestos, consult a physician immediately.. Some of the major health effects associated with asbestos exposure include:. Asbestosis: is a long-term non-cancer disease to the lungs caused by inhaling asbestos fibers. Once fibers are trapped in the lung tissues, they begin to scar the tissues. Eventually, this scarring which prevents oxygen from entering into the blood causes the lungs not to function. There is no effective treatment for asbestosis.. Lung Cancer: is mostly caused by asbestos. People who work in the manufacturing of asbestos and those who use asbestos products have a greater chance of developing lung cancer. Cigarette smoking also increases the effects of lung cancer.. Mesothelioma: is a rare and peculiar form of cancer that is found I the pleura (the outer ...
Abstract: Soil vermiculite clays of varying tetrahedral and octahedral composition and cation exchange capacity (CEC) were examined for their ability to fix K+ in both the wet and dry states. Fixation capacity, expressed as per cent of the CEC, in the wet state was fairly high for most samples but it was enhanced greatly upon drying the K saturated samples. This enhancement indicated that each sample contained a number of vermiculite species with different CECs.. The vermiculite clays, as a group, exhibited a much higher fixation capacity at a much lower CEC than those of the coarse grained vermiculites. This enhanced fixation is believed due to the dioctahedral nature of the coarse grained vermiculites. In samples of nearly equal CECs only those containing Al3+ in tetrahedral positions exhibited an enhanced fixation capacity in the dry state but not in the wet state.. In was remarkable to find that the state of oxidation of crystal structure iron strongly affected the fixation and the CEC. ...
What is Asbestos? Asbestos is a generic term for six different naturally occurring mineral formations which have the common characteristic of their crystalline structure being able to be separated into long, thin fibers. The fibers can be curved (serpentine asbestos, or chrysotile) or straight, "needle-like" fibers (the amphiboles). Chrysotile is the most common type of asbestos in the United States and has been mined in various locations in the United States. Asbestos fibers are present in the air throughout the United States. This is partly due to fibers broken from exposed asbestos containing rocks, but more has been released from asbestos containing products, such as vehicle brakes. Asbestos was called the "miracle mineral" due to its many unique physical properties. Asbestos was added to many building materials because of its ability to retard fire, strengthen products, and acoustically insulate. Asbestos use in building materials peaked in the years following World War II through the ...
Chrysotile, or "white", asbestos is the dominant form of asbestos in international commerce today. It accounts for 99% of current world asbestos production of 2 million tonnes. Chrysotile is an extremely hazardous material. Clinical and epidemiologic studies have established incontrovertibly that chrysotile causes cancer of the lung, malignant mesothelioma of the pleura and peritoneum, cancer of the larynx and certain gastrointestinal cancers. Chrysotile also causes asbestosis, a progressive fibrous disease of the lungs. Risk of these diseases increases with cumulative lifetime exposure to chrysotile and rises also with increasing time interval (latency) since first exposure. Comparative analyses have established that chrysotile is 2 to 4 times less potent than crocidolite asbestos in its ability to cause malignant mesothelioma, but of equal potency of causation of lung cancer. The International Agency for Research on Cancer of the World Health Organization has declared chrysotile asbestos a ...
During National Asbestos Awareness Week, April 1-7, I urge Americans to learn about the dangers of asbestos exposure.. Asbestos is a mineral fiber that occurs naturally in our environment; in rock and in soil. Because of its fiber strength and heat resistance, asbestos has traditionally been used in a variety of building construction materials, as insulation and as a fire retardant.. Activity that disturbs asbestos causes small asbestos fibers to float in the air. Inhaling these fibers leads to asbestos-related diseases. Three of the major health effects associated with asbestos exposure are lung cancer; mesothelioma, a rare form of cancer that is found in the thin lining of the lungs, chest, abdomen and heart; and asbestosis, a serious progressive, long-term, non-cancer disease of the lungs.. Anyone who disturbs asbestos is at risk. However, it is of special concern for construction, insulation, and demolition workers, pipefitters, boilermakers and others who might disturb asbestos found in old ...
People who worked in asbestos textile plants during the period from the 1950s to 1970s face a significantly increased risk of lung cancer and death due to chrysotile asbestos exposure, according to a study published in the journal, Occupational and Environmental Medicine.. Asbestos has previously been linked to an increased risk of lung cancer, mesothelioma, and asbestosis (a chronic lung disorder). This study specifically looked at four North Carolina plants that produced textile products with chrysotile asbestos the most commonly used form of this industrial fiber. Amosite and crocidolite are two lesser-used forms of asbestos. Past studies had raised questions about the potential of these different asbestos fibers to cause cancer. In the current study, researchers looked at the asbestos exposures and medical histories of 5,770 workers who had been employed at the four North Carolina plants between 1950 and 1973. More than 2,500 of the workers died during the study period, 277 of them from lung ...
All forms of asbestos cause cancer and the Society is very concerned about Canadas lack of leadership on this important health issue," says Paul Lapierre, Vice President, Public Affairs and Cancer Control, Canadian Cancer Society. "Its imperative that the health of Canadians and people around the world be put first.". Worldwide about 107,000 people die every year from disease related to occupational exposure to asbestos.. The Society has been actively lobbying the federal government for several years to protect Canadians and people around the world from asbestos and we will continue to work hard to end exposure to asbestos.In particular we will maintain pressure on the federal government to fulfill its promise to no longer oppose the inclusion of chrysotile asbestos on the Rotterdam Conventions list of hazardous substances when the vote takes place in Spring 2013.. The Canadian Cancer Society believes that all efforts must be made to eliminate exposure to asbestos and to eliminate ...
Methods Cases of MM for the period 1962 until 2012, their main histological subtype and their most significant source of asbestos exposure were collected from the Western Australian Mesothelioma Registry. Exposure characteristics included, degree of asbestos exposure (including total days exposed, years since first exposure and, for crocidolite only, calculated cumulative exposure), source of exposure (occupational or environmental), form of asbestos handled (raw or processed) and type of asbestos (crocidolite only or mixed fibres). ...

asbestos-amphiboleasbestos-amphibole

Asbestos formed predominantly of amphibole-group minerals, anthophyllite, crocidolite, riebeckite, amosite, tremolite, ... Asbestos formed predominantly of amphibole-group minerals, anthophyllite, crocidolite, riebeckite, amosite, tremolite, ...
more infohttp://inspire.ec.europa.eu/codelist/CommodityCodeValue/asbestosAmphibole

IRIS Toxicological Review of Libby Amphibole Asbestos (Final Report) | IRIS | US EPAIRIS 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 ...
more infohttps://cfpub.epa.gov/ncea/iris_drafts/recordisplay.cfm?deid=292394

EPA: Most Significant Sources of Libby Amphibole Asbestos Have Been RemovedEPA: '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 ...
more infohttps://www.aiha.org/publications-and-resources/TheSynergist/Industry%20News/Pages/EPA-Most-Significant-Sources-of-Libby-Amphibole-Asbestos-Have-Been-Removed.aspx

NIOSHTIC-2  Publications Search - 20033941 - Asbestos-related cancer and the amphibole hypothesis - Stayner and colleagues...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 ...
more infohttps://www.cdc.gov/niosh/nioshtic-2/20033941.html

EPA finalises IRIS review on inhalation of Libby amphibole asbestos - Bibra toxicology advice & consultingEPA 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 ( ...
more infohttps://www.bibra-information.co.uk/epa-finalises-iris-review-inhalation-libby-amphibole-asbestos/

ATS, AJRCCM, American Thoracic Society, medical journal, 
asbestos, asbestosis, mesothelioma, lung cancer, interstitial...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 ...
more infohttp://lakesidepress.com/Asbestos/AJRCCM-omittedrefs.htm

Research Pinpoints Libby Amphibole DiseaseResearch 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, ...
more infohttps://www.asbestos.com/news/2018/01/04/libby-amphibole-asbestos-disease/amp/

CSIRO PUBLISHING | Australian Journal of ChemistryCSIRO PUBLISHING | Australian Journal of Chemistry

CH9661155Chemical studies of amphibole asbestos. I. Structural changes of heat-treated crocidolite, amosite, and tremolite from ...
more infohttp://www.publish.csiro.au/CH/issue/3480/

CDC - NIOSH eNews - February 2015CDC - NIOSH eNews - February 2015

Precautions Against Libby Amphibole Asbestos Exposure Provided to a Forest Management Agency. Although no overexposures to ... Libby amphibole were found, HHE Program investigators recommended ways to minimize the potential for exposure. They recommended ...
more infohttps://www.cdc.gov/niosh/enews/enewsv12n10.html

McCrone Research Institute / ChicagoMcCrone Research Institute / Chicago

Analysis of Amphibole Asbestos in Chrysotile-Containing Ores and a Manufactured Asbestos Product. J.R. Millette, A. Harmon, P. ... Mike was connected to the world of microanalysis through his work with asbestos analysis. Full article (PDF). ...
more infohttp://www.mcri.org/v/1104/The-Microscope-Volume-57-First-Quarter-2009

Asbestos - Mesotheliomas Primary CauseAsbestos - Mesothelioma's Primary Cause

Because of mesothelioma, asbestos products are considered dangerous. ... Asbestos is the cause of mesothelioma, a cancer in the lining of the lungs or abdomen. ... Amphibole Asbestos. There are two different kinds of asbestos fibers. Serpentine fibers are curly and less harmful to the human ... Chrysotile asbestos is also known as "white asbestos" and is the most commonly used form of asbestos. It is primarily found in ...
more infohttps://www.mesotheliomaguide.com/mesothelioma/causes/asbestos/

In vitro determinants of asbestos fiber toxicity: effect on the relative toxicity of Libby amphibole in primary human airway...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 ...
more infohttps://particleandfibretoxicology.biomedcentral.com/articles/10.1186/1743-8977-11-2

The EPA National Library Catalog | EPA National Library Network | US EPAThe EPA National Library Catalog | EPA National Library Network | US EPA

Toxicity ; Amphiboles ; Asbestos ; Cancer ; Carcinogens ; Dose-response relationship ; Hazards ; Health effects ; Minerals ; ... Toxicological Review of Libby Amphibole Asbestos (August 2011).. CORP Author. Environmental Protection Agency, Washington, DC. ... Mixtures ; Libby amphibole asbestos(LAA) ; Integrated Risk Information System(IRIS) ; Libby(Montana) ...
more infohttps://cfpub.epa.gov/ols/catalog/advanced_bibliography.cfm?FIELD1=SUBJECT&INPUT1=minerals&TYPE1=EXACT&LOGIC1=AND&COLL=&SORT_TYPE=MTIC&start_row=351

NIOSHTIC-2 Search Results - Full ViewNIOSHTIC-2 Search Results - Full View

Amphibole asbestos; cummingtonite; grunerite; thermal analysis; tremolite; x-ray diffraction ... Fibrous amphiboles were ground in a fiber mill for size reductions. Prismatic amphiboles were ground using a jet mill. Fibrous ... Workshop on Asbestos: Definitions and Measurement Methods. Gravatt CC, LaFleur PD, Heinrich KFJ, eds. Washington, DC: National ... Air-sampling; Dusts; Asbestos-dusts; Air-contamination; Chemical-analysis; Airborne-dusts; Fibrous-dusts; Air-monitoring; ...
more infohttp://www2.cdc.gov/nioshtic-2/BuildQyr.asp?s1=%27silica%2A%27&f1=TI&Startyear=&t1=1&s2=%27silica%2A%27&B1=Search&terms=3&Adv=1&f2=KW&Limit=500&Sort=DP+DESC&D1=10&EndYear=&PageNo=157&RecNo=1567&View=f&

CISDOC databaseCISDOC database

Differentiating non-asbestiform amphibole and amphibole asbestos by size characteristics Coarsely crystalline amphibole ... Samples of six coarsely-crystalline amphiboles and their asbestos analogs were processed to maximize the number of particles ... it was discovered that the materials used from a local material site contained asbestos. Evaluation of asbestos exposure to ... Mining or construction work can result in the release of single crystals or cleavage fragments resembling asbestos fibres or ...
more infohttp://www.ilo.org/dyn/cisdoc2/cismain.listdocs?p_lang=en&p_bsubject=1022

asbestos  Equipment  available in Liechtenstein | Environmental XPRTasbestos 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 ...
more infohttps://www.environmental-expert.com/products/keyword-asbestos-60/available-in-liechtenstein?redirectedToServing=1

asbestos  Equipment  available in Belarus | Environmental XPRTasbestos Equipment available in Belarus | 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 sampling equipment , asbestos sample equipment , asbestos fiber equipment , sample asbestos equipment , asbestos ... asbestos removal equipment , asbestos waste equipment , asbestos particulate equipment , asbestos hazard equipment ...
more infohttps://www.environmental-expert.com/products/keyword-asbestos-60/available-in-belarus?redirectedToServing=1

MINERAL RESOURCES AND MINING | The Handbook of Texas Online| Texas State Historical Association (TSHA)MINERAL RESOURCES AND MINING | The Handbook of Texas Online| Texas State Historical Association (TSHA)

Asbestos. Amphibole asbestos is associated with talc deposits in Hudspeth County. Tremolite asbestos occurs in some of the ... No asbestos is mined in Texas.. Asphalt. Numerous deposits of asphalt-bearing rocks occur in Texas. They include asphaltic ...
more infohttps://tshaonline.org/handbook/online/articles/gpm01

Hill WG[au] - PubMed - NCBIHill WG[au] - PubMed - NCBI

Descriptive analysis of the respiratory health status of persons exposed to Libby amphibole asbestos. ... Psychosocial health status of persons seeking treatment for exposure to libby amphibole asbestos. ...
more infohttps://www.ncbi.nlm.nih.gov/pubmed?access_num=Hill+WG&link_type=AUTHORSEARCH&cmd=search&term=Hill+WG%5Bau%5D&dispmax=50

Chrysotile vs. Libby Amphibole - CARD - Libby, MTChrysotile vs. Libby Amphibole - CARD - Libby, MT

... diffuse highly inflamed pleuritis has an increased incidence in Libby Amphibole disease, causing intense chest pain, rare in ... Libby Amphibole Asbestos. Amphibole fibers have extended bio-persistence, LA diseases typically have a latency of 10-40 years. ... Non-malignant EPA toxicity values have not yet been established for Libby Amphibole asbestos, but are expected to be much less ... mined from Zonolite Mountain was contaminated with one of the more toxic forms of asbestos called Libby Amphibole asbestos. ...
more infohttps://libbyasbestos.org/provider-education/chrysotile-vs-libby-amphibole/

Pregnancy sub-cluster 87Pregnancy sub-cluster 87

Free radical activity of natural and heat treated amphibole asbestos. Otero Areán C - - 2001 ... The amphibole minerals amosite and crocidolite were subjected to calcination and to hydrothermal treatment in order to study ... which is known to be a main factor causing asbestosis and other asbestos-induced diseases. ... ...
more infohttp://www.biomedsearch.com/cluster/69/Pregnancy/sub-87-p13.html
  • Hundreds of people - including miners and nearby residents - have died from the asbestos-related disease. (asbestos.com)
  • 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)
  • However, this assessment does not replace the existing IRIS listing for asbestos (EPA, 1988). (epa.gov)
  • 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)
  • Workshop on Asbestos: Definitions and Measurement Methods. (cdc.gov)
  • higher quantities of asbestos are released during exfoliation processing than in other processing methods. (cdc.gov)
  • In the early years of the 20th century, a lot of evidence showed that breathing asbestos led to scarring of the lungs. (simonairquality.com)
  • In addition to other precautions, when working with asbestos-cement products, minimize the dust that results. (astm.org)
  • Asbestos can get into water through various sources like soil or rock erosion, breakdown of roofing materials with asbestos, or corrosion of cement pipes containing asbestos. (simonairquality.com)
  • Had his recommendation been implemented in 1991, or pursued by the relevant medical journals like Chest and AJRCCM, we would not have the PAHP-generated epidemic of phony asbestos diagnoses with us today. (lakesidepress.com)
  • Although its use has diminished in recent decades, there are still many products that contain asbestos, especially in older homes, schools and public buildings. (mesothelioma.com)
  • 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 chief differences from pyroxenes are that (i) amphiboles contain essential hydroxyl (OH) or halogen (F, Cl) and (ii) the basic structure is a double chain of tetrahedra (as opposed to the single chain structure of pyroxene). (wikipedia.org)