Results 131 to 140 of about 1,748 (149)
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Free radical activity of natural and heat treated amphibole asbestos
Journal of Inorganic Biochemistry, 2001The amphibole minerals amosite and crocidolite were subjected to calcination and to hydrothermal treatment in order to study the effect of these heat treatments on the ability of the minerals to trigger formation of free radicals, which is known to be a main factor causing asbestosis and other asbestos-induced diseases.
Otero Aréan C. +5 more
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Surface Charge Heterogeneity in Amphibole Cleavage Fragments and Asbestos Fibers
Science, 1980Aspect ratio and electrophoretic mobility data for amphibole particles reveal that short fibers and blocky cleavage fragments have a smaller net charge than highly elongated particles. Asbestos fibers and cleavage fragments of the same dimensions exhibit the same net negative surface charge but positively charged ends and negatively charged lateral ...
J E, Schiller +2 more
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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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Biological activity of synthetic amphibole asbestos.
Polish journal of occupational medicine and environmental health, 1992The carcinogenic and fibrogenic activity of four samples of synthetic amphibole asbestos with different chemical structure was examined in white rats. Pleural mesotheliomas were found: in 11 out of 27 rats (37.8%) treated with magnesium asbestos; in 4 out of 24 animals (6.7%) for nickel asbestos; 13 out of 22 (59.1%) for cobalt asbestos; and in the ...
L A, Vasilewa +3 more
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Cation site population in amphibole asbestos. A Mössbauer study
Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1983Although the amphibole asbestos minerals all possess basically the same structural elements, symmetry transitions may occur depending on their cation distribution. In the absence of bulky cations, iron(II) ions tend to occupy the M4 sites in all three important varieties studied.
Marie-Josée Luys +3 more
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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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Proceedings of the Geologists' Association, 2007
An increase in the incidence of asbestos-related diseases in the general population from non-occupational exposure to the various asbestos fibre-types has been a concern since the identification of riebeckite asbestos (commonly referred to as blue asbestos or crocidolite in the medical literature) as an aetiological agent in human mesothelioma.
R.P. Nolan +4 more
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An increase in the incidence of asbestos-related diseases in the general population from non-occupational exposure to the various asbestos fibre-types has been a concern since the identification of riebeckite asbestos (commonly referred to as blue asbestos or crocidolite in the medical literature) as an aetiological agent in human mesothelioma.
R.P. Nolan +4 more
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POSSIBLE SYNERGISM BETWEEN CHRYSOTILE AND AMPHIBOLE ASBESTOS
The Lancet, 1980E D, Acheson, M J, Gardner
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Amphiboles and Chrysotile Asbestos Exposure
American Journal of Industrial Medicine, 1988V L, Roggli, P C, Pratt
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1991
In 1986, a letter of correspondence to the New England Journal of Medicine (Germine, 1986) communicated that 2–4% tremolite asbestos was present in a crushed carbonate marble, marketed as a sand to be used in children’s sand boxes. Analysis of a specimen of this sand by the Environmental Sciences Laboratory for the US Consumer Products Safety ...
A. M. Langer, R. P. Nolan, J. Addison
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In 1986, a letter of correspondence to the New England Journal of Medicine (Germine, 1986) communicated that 2–4% tremolite asbestos was present in a crushed carbonate marble, marketed as a sand to be used in children’s sand boxes. Analysis of a specimen of this sand by the Environmental Sciences Laboratory for the US Consumer Products Safety ...
A. M. Langer, R. P. Nolan, J. Addison
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