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amphibole asbestos meaning

Serpentine vs Amphibole Asbestos: Uses and Dangers . A class of asbestos that includes silicates of magnesium, iron, calcium, and sodium. Amosite was found in 10 lungs and crocidolite in 9; the average ratio of amosite to crocidolite was approximately 14:1. noun amphibole any of a large group of minerals consisting of the silicates of calcium, iron, magnesium, sodium, and aluminium, usually in the form of long slender dark-coloured crystals. Enrich your vocabulary with the English Definition dictionary Humans have used asbestos for at least 10,000 years for just about everything. Some of these have even historically been cut and polished like gemstones. After seven months, both LAA- and AzA-exposed mice had indices of chronic immune dysfunction … Related words - amphibole synonyms, antonyms, hypernyms and hyponyms. Example sentences containing amphibole Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity. Asbestos is a naturally occurring mineral and comes in both many types and even colors. Type: noun; Copy to clipboard; Details / edit; Open Multilingual Wordnet. amphibole - WordReference English dictionary, questions, discussion and forums. All Free. Asbestos, Amphibole "Asbestos, Amphibole" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . Meaning of amphibole with illustrations and photos. All asbestos fibers are hazardous to human health. The asbestos fibers had dimensions consistent with those reported for air samples from actual amphibole asbestos operations, and the cleavage fragments were also dimensionally consistent with those found in non-asbestos mining and milling operations. | Find, read and cite all the research you need on ResearchGate See more. Libby Amphibole asbestos IRIS Summary (PDF) (35 pp, 381 K) Fact sheet and frequent questions for the Libby Amphibole asbestos assessment: Science in Action: IRIS Final Assessment of Libby Amphibole asbestos (PDF) (1 pp, 276 K) Libby Amphibole asbestos Frequently Asked Questions (PDF) (3 pp, 276 K) The five other forms of asbestos belong to the inosillicates family and are members of the amphibole group. Definition of asbestos, amphibole in the Definitions.net dictionary. However, asbestos has seen a large amount of commercial use in the construction world and has been linked to numerous health problems that can lead to breathing … What does asbestos, amphibole mean? The term amphibole asbestos refers to the remaining five types of the mineral, differentiated from chrysotile which falls into the serpentine class. Identification. These other five types of asbestos that have been identified and mined commercially include amosite, a trade name name given to brown asbestos that is found in South African mines. Amphibole Asbestos. ambiguity of speech, esp. • Some confusion has arisen over the definition of amphibole asbestos which has led to the wrong impression that both forms of the amphiboles are the same and equally hazardous. -lies. amphibole is turned into an adjective and used as a pre x to the word asbestos: anthophyllitic asbestos, tremolitic asbestos . Positive identification of a specific fiber type requires microscopic analysis and examination. Learn more about the history of asbestos and … Owing to health hazards, notably from inhalation, use of asbestos has been restricted. Changing amphibole nomenclature, uncertainties in Fe +2 /Fe +3, and natural compositional variability result in samples of the asbestiform amphibole from Libby being variably classified as soda tremolite, richterite, sub-calcic actinolite, and winchite. Sources of these fibrous amphiboles are several plutons in southern Nevada and Arizona and alluvial fans emanating from asbestos-containing bedrock. Where the chemical composition of the amphibole is kno wn, the C57BL/6 mice were exposed by oropharyngeal aspiration to fiber suspensions at a very low dose of 3μg/mouse. Asbestos definition: Asbestos is a grey material which does not burn and which has been used as a protection... | Meaning, pronunciation, translations and examples asbestos: Any of six incombustible, chemical-resistant, fibrous minerals of impure magnesium silicate, occurring in either serpentine or amphibole form and used historically in many products, including fireproofing, electrical insulation, building materials, brake linings, and chemical filters. ‘asbestos shingles’ ‘The inhalation of amphibole asbestos is now widely recognized as being highly dangerous to human health.’ ‘But his lungs lost the battle for health years ago when he worked with blue asbestos fibres, insulating for the telephone company.’ and amphibole mineral groups, which have crystal- lized in the asbestiform habit causing them to be easily separated into long, thin, flexible, strong fibers when crushed or processed. Amphibole Asbestos synonyms, Amphibole Asbestos pronunciation, Amphibole Asbestos translation, English dictionary definition of Amphibole Asbestos. means any of the following minerals, namely crocidolite, amosite, fibrous actinolite, fibrous anthophyllite, fibrous tremolite and any mixture containing any of those minerals; Enrich your vocabulary with the English Definition dictionary PDF | On Jan 1, 2001, M. E. Gunter and others published Amphibole-Asbestos, Vermiculite Mining and Libby, Montana: What's in a Name? Numbers and sizes of fibers from the lungs of 10 patients who had an amphibole asbestos-induced malignant pleural mesothelioma were analyzed. asbestos sheet definition in English dictionary, asbestos sheet meaning, synonyms, see also 'asbestosis',assets',asbestine',asst'. Pronunciation of amphibole and its etymology. Human health assessment information on a chemical substance is included in IRIS only after a comprehensive review of toxicity data by U.S. EPA health scientists from several program offices, regional offices, and the Office of Research and Development. or amphibole minerals with current or historical commercial usefulness due to their extraordinary tensile strength, poor heat conduction and relative resistance to chemi - cal attack. asbestos definition in English dictionary, asbestos meaning, synonyms, see also 'asbestosis',assets',asbestine',asst'. Asbestos definition, a fibrous mineral, either amphibole or chrysotile, formerly used for making incombustible or fireproof articles. Thousands of lawsuits and billions of pounds in compensation later, the dangers of asbestos in talc-containing cosmetics are now firmly in the public eye. Amphibole fibres (crocidolite -blue asbestos, amosite- brown asbestos, tremolite, actinolite and anthophyllite) are brittle fibres and are often rod- or needle-like in appearance. Define amphibole asbestos. Indeed, many sources regard chrysotile asbestos as being just as dangerous as amphibole asbestos. The use of asbestos and exposure to it has serious health consequences. Here, Cosmetics Business investigates why the picture surrounding the natural mineral is so muddied and serious questions remain unanswered Define Amphibole Asbestos. amphibole { noun feminine } Large group of similar hydrated double silicate minerals. Is chrysotile asbestos still used and where? The fibers are generally brittle and cannot be spun, but are... | Review and cite AMPHIBOLE ASBESTOS … amphibole asbestos mineral, in rock, soil, and dust that can be transported by wind, water, cars, or on clothing after outdoor recreational activities. Information and translations of asbestos, amphibole in the most comprehensive dictionary definitions resource on the web. Libby Amphibole asbestos; CASRN Not Applicable . from uncertainty of the grammatical construction rather than of the meaning of the words, as in The Duke yet lives that Henry shall depose. But the talc industry remains notoriously shrouded, with disagreements and contestations at every turn. While amphibole asbestos deposits occur in mafic and ultramafic provinces, soil amphiboles occur evenly distributed across the U.S.A. translation and definition "amphibole", English-French Dictionary online. Meaning of asbestos, amphibole. The regulated amphiboles (riebeckite asbestos, grunerite asbestos, anthophyllite asbestos, tremolite asbestos, and actinolite asbestos) ... by serially increasing ages at low temperature steps that climb to a plateau-like segment yielding a weighted mean age of 211.8 ± 1.4 Ma. The principal varieties of asbestos are chrysotile, a serpentine material, and crocidolite, amosite, anthophyllite, tremolite and actinolite, which are amphiboles (4). amphibole . Asbestos Types. Serpentine asbestos develops in a layered or tiered form, whereas amphibole asbestos has a chain-like structure. Definition of amphibole in the Fine Dictionary. Included in the definition are chrysotile; crocidolite, asbestiform grunerite (amosite); anthophyllite asbestos: tremolite asbestos: and actino- lite asbestos. Whoever you believe, chrysotile asbestos is known to be a carcinogen and a leading cause of on-the-job illness and fatality. Fibrous amphibole asbestos from Libby (LAA) is composed of winchite (70%), richterite (9%), tremolite (5%), and non-amphibole minerals (16%) with a mean aspect ratio of 8.4±0.7. Ranging from cooking pots to insulating production materials. am•phib•o•ly (æmˈfɪb ə li) n., pl. Asbest (altgriech. Asbestos is generally made up of fiber bundles which easily separate into long, thin fibers. It is decidedly not safe. ἄσβεστος, asbestos, „unvergänglich”) ist eine Sammelbezeichnung für verschiedene, natürlich vorkommende, faserförmige Silikat-Minerale.Die Faser des Magnesioriebeckits oder Krokydoliths aus der Gruppe der Hornblenden (auch Blauasbest genannt) ist bläulich, die Faser des Chrysotils (Serpentingruppe) ist weiß oder grün. , English dictionary definition of amphibole asbestos c57bl/6 mice were exposed by oropharyngeal aspiration to fiber at... At every turn Large group of similar hydrated double silicate minerals words - amphibole synonyms, also... Dictionary, questions, discussion and forums specific fiber type requires microscopic analysis and examination research... 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