Document JM5mve4y4RMK7woOdoowBwvO

t Asbestos Exposure During Brake Lining Maintenance end Repair Arthur N. Jtohl, Arthur M. Langer, Mery S. Wolff and Irving Weisaan Environmental Sciences Laboratory Mount Sinai School of Medicine of the City University of New York New York, New York 10029 Introduction miring the past decade, significant disease risk has been found associated with the Inhalation of asbestos fibers In a number of occupational and environmental circumstances other than in asbestos mining, milling and manufacturing, where serious harard was already known (Wagner et_ al., I960; Newhouse and Thompson, 1965; Selikoff et al., 1964, 1965; Harries, 1968). Such exposures were found in the construction industry and in sMpbuilcirg, as well as in other industrial settings where asbestos products were used. More recently, asbestos exposure has been suggested to occur during auto motive brake lining repair and installation work, and measurable concen trations of asbestos fiber were observed in the work environment of work men Involved in these operations (Hickish and Knight, 1970; Batch, 1970; Boillat and Lob, 1973). With limited data available, however, uncertainty remained regarding the type 8nd extent of asbestos exposure during this work. Borne investigators have questioned whether free asbestos fibers survive the high temperatures produced during brsking action (lynch, 1966, This research was supported by Center Grant LS 00926 oi the National Institute of Environmental Health Sciences of the U.S. Department of Health, tducation and Welfare. Assistance was also provided in part by the Health Research Council of the City of New York KP.C U 2329 ar.d by the lord Motor Company, 8005 1868 PRODUCED BY FORD