1973Proceedings annual meeting Electron Microscopy Society of AmericaRequires access

Identification of Airborne Asbestos by Selected Area Electron Diffraction

Glenn R. Smith, Glen A. Stone, Ronald L Stanley, Leslie M. Carpenter, K. Seshan, Peter K. Mueller

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Abstract

In the Air and Industrial Hygiene Laboratory's development of a method for characterization of the asbestos distribution in ambient air, positive identification of the asbestos fiber type is essential because the different types of asbestos have varying degrees of carcinogenicity and toxicity. However, chrysotile is the only asbestos mineral which currently can be positively identified when its fibers are less than 1 in size. Samples of ambient air in California cities show the presence of chrysotile fibers less than 1 in diameter In addition, we find unidentified smaller fibers of the asbestos types in concentrations of about 1 million per cubic meter.

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In the Air and Industrial Hygiene Laboratory's development of a method for characterization of the asbestos distribution in ambient air, positive identification of the asbestos fiber type is essential because the different types of asbestos have varying degrees of carcinogenicity and toxicity. However, chrysotile is the only asbestos mineral which currently can be positively identified when its fibers are less than 1 in size. Samples of ambient air in California cities show the presence of chrysotile fibers less than 1 in diameter In addition, we find unidentified smaller fibers of the asbestos types in concentrations of about 1 million per cubic meter.

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Available abstract

In the Air and Industrial Hygiene Laboratory's development of a method for characterization of the asbestos distribution in ambient air, positive identification of the asbestos fiber type is essential because the different types of asbestos have varying degrees of carcinogenicity and toxicity. However, chrysotile is the only asbestos mineral which currently can be positively identified when its fibers are less than 1 in size. Samples of ambient air in California cities show the presence of chrysotile fibers less than 1 in diameter In addition, we find unidentified smaller fibers of the asbestos types in concentrations of about 1 million per cubic meter.

Key concepts: Chrysotile, Asbestos, Asbestos fibers, Environmental science, Fiber, Occupational hygiene, Identification (biology), Air pollution

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