Application of Sprayed Inorganic Fiber Containing Asbestos: Occupational Health Hazards

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Abstract
Over 40,000 tons of inorganic fibrous insulation containing asbestos were used in 1970 by the construction industry as a fireproofing material in the erection of multistoried buildings. The application of this material by a spraying technique produces serious contamination of the working environment. Asbestos fiber concentrations may range from 30 f/cc to more than 100 f/cc. Some early observations of the exposures and health of the workmen in this comparatively new occupation are given with photographs of the working areas. Nearby workers may be indirectly exposed. Such concentrations were found to be 70 f/cc ten feet from the spraying and 46 f/cc seventy-five feet away. Control measures are discussed.

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