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Width Distributions of Asbestos and Non-Asbestos Amphibole Minerals
Indoor and Built Environment, 2009Amphibole asbestos fibers and non-asbestos amphibole particles have been shown to have different size characteristics, in addition to their morphological differences. There is a tendency, however, among laboratories and some regulators to ignore the morphological differences and to simply rely on a minimal aspect ratio to determine whether a particle ...
D.R. Van Orden +3 more
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The Microscope, 2017
In the article, “Analysis of Amphibole Asbestos in Chrysotile-Containing Ores and a Manufactured Asbestos Product” by J.R. Millette, A. Harmon, P. Few, W.L. Turner Jr., and W.R. Boltin (The Microscope Volume 57, First Quarter, pp. 19-22, 2009; DOI forthcoming) contains the following two errors: • Page 19, column 2: In the Introduction section, change “
J.R. Millette +4 more
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In the article, “Analysis of Amphibole Asbestos in Chrysotile-Containing Ores and a Manufactured Asbestos Product” by J.R. Millette, A. Harmon, P. Few, W.L. Turner Jr., and W.R. Boltin (The Microscope Volume 57, First Quarter, pp. 19-22, 2009; DOI forthcoming) contains the following two errors: • Page 19, column 2: In the Introduction section, change “
J.R. Millette +4 more
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ANALYSIS OF AMPHIBOLE ASBESTOS IN CHRYSOTILE AND OTHER MINERALS
The Annals of Occupational Hygiene, 1990Chrysotile asbestos and many other mineral raw materials contain amphibole minerals which may be asbestiform. There is currently no analytical method which will detect the presence of amphibole at sufficiently low limits to preclude the possibility of inadvertent exposure of persons handling these materials to hazardous airborne fibre concentrations. A
J, Addison, L S, Davies
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Mesothelioma and Exposure to Mixtures of Chrysotile and Amphibole Asbestos
Archives of Environmental Health: An International Journal, 1979This paper provides a new analysis of previously published work and draws attention to the possibility that mixtures of amphiboles and chrysotile appear more commonly in the lungs of mesothelioma patients compared to controls than do either of the main types of fiber alone.
E D, Acheson, M J, Gardner
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Antiferromagnetic order in amphibole asbestos
AIP Conference Proceedings, 1975We have made magnetic susceptibility, electron spin resonance, and Mossbauer measurements on two different amphiboles, (Fe, Mg)7Si8O22(OH)2, and crocidolite, Na2Fe5Si8O22 (OH)2, which indicate that these materials are ordered antiferromagnetically at liquid helium temperatures.
J. C. Eisenstein +2 more
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A review of carcinogenicity studies of asbestos and non-asbestos tremolite and other amphiboles
Regulatory Toxicology and Pharmacology, 2008Experimental animal studies comparing asbestos and non-asbestos varieties of tremolite indicate tremolite asbestos is markedly more carcinogenic. By direct analogy, the differences in carcinogenicity between tremolite asbestos and non-asbestos prismatic tremolite should be the same for the other types of amphibole that also crystallize in the asbestos ...
John, Addison, Ernest E, McConnell
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Electron Microscopy of Amphibole Asbestos Fibres
Proceedings, annual meeting, Electron Microscopy Society of America, 1980The high aspect ratios and small dimensions affect how asbestos fibers enter or are engulfed by cells, and are retained in the lungs. The resulting biological activity presumably is initiated by surface reactions between mineral particles and molecular constituents in the cell. Our
R. M. Fisher +3 more
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Loss of Surface Reactivity upon Heating Amphibole Asbestos
Langmuir, 2002Two amphibole asbestos, crocidolite and amosite, have been heated at 400 and 800 °C in order to examine the variations in some surface properties relevant to asbestos toxicity, such as iron mobility, free radical generation, and hydrophilicity. At 400 °C, only the surface is modified, while at 800 °C the crystalline structure partially collapses (X-ray
TOMATIS M. +3 more
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Spontaneous polymerisation on amphibole asbestos: relevance to asbestos removal.
Chemical communications (Cambridge, England), 2002Taking advantage of the spontaneous polymerisation of eugenol to lignin-like species catalysed by the surface of crocidolite fibres, a procedure is proposed, possibly useful in asbestos removal and disposal, where the polymer avoids the release of airborne fibres and also scavenges ROS (reactive oxygen species).
I, Fenoglio, M, Tomatis, B, Fubini
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The surface chemistry of amosite asbestos, an amphibole silicate
Journal of Colloid and Interface Science, 1975Abstract A study has been made of the leaching and ion exchange properties of a sample of amosite (an asbestos mineral of the amphibole class) as a function of pH and temperature. Traces of elements, some derived from impurity minerals, were detected in solution, but the amphibole structure itself proved resistant to attack and there was no ...
John Ralston, J.A Kitchener
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