By J H Duffus

ISBN-10: 0854044299

ISBN-13: 9780854044290

ISBN-10: 1855738007

ISBN-13: 9781855738003

Makes a speciality of the nation of clinical wisdom in regards to the carcinogenicity of metals, their compounds and different inorganic elements. It presents a useful advisor for chemists occupied with chance overview, overall healthiness and security and toxicology

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Extra info for Carcinogenicity of Inorganic Substances. Risks from Occupational Exposure

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The intensities of selected X-ray peaks associated with quartz are used to quantify the mass of the mineral quartz on the filter, making the assay more specific than simply counting the particles. P. M. Langer 43 However, the quartz X-ray peaks may be overlapped when other mineral phases (for example, mica) are present, indicating a greater concentration of respirable quartz than is actually present. The actual particle size distribution within the respirable fraction is not determined. Knowing the number of particles or the respirable mass of particles in a given volume of air is insufficient information for exposure-response studies.

P. R. (J996) 'The Natural Selection of the Chemical Elements', Oxford University Press, Oxford. 3. , Roi, R. Th. (1989-1993) 'The Toxicology of Chemicals', Series One, Carcinogenicity, Vols. I-IV. Commission of the European Communities, Luxembourg. P. M. LANGER ENVIRONMENTAL SCIENCES LABORATORY, BROOKLYN COLLEGE, BROOKLYN, NEW YORK, USA 1 Introduction Exposure to certain inorganic particles has been associated with the occurrence of human disease. The principal route of exposure identified has been inhalation, the particles dispersed in an aerosol.

This methodology has been used, for example, to quantify exposure to quartz dust. The respirable fraction of quartz in an aerosol is collected on a membrane filter, which is analysed by continuous scan X-ray diffraction. The intensities of selected X-ray peaks associated with quartz are used to quantify the mass of the mineral quartz on the filter, making the assay more specific than simply counting the particles. P. M. Langer 43 However, the quartz X-ray peaks may be overlapped when other mineral phases (for example, mica) are present, indicating a greater concentration of respirable quartz than is actually present.

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