Report of Industrial Hygiene Surveys conducted during fiscal year 1973 in six aluminum plants located in the Northwestern United States.
Worker exposures to coal-tar-pitch (65996932) volatiles and other hazards were surveyed at six aluminum (7429905) factories in (SIC-1541) the northwestern United States during 1973. Air samples were analyzed for benzene (71432) soluble materials, total dust, carbon- monoxide (630080), sulfur-dioxide (7446095), hydrogen-fluoride (7664393), and total fluoride (7782414). Urine samples from potline workers were analyzed for fluoride. Heat stress and noise measurements also were taken. Use of respirators and engineering controls also was surveyed. Significant exposures to benzene soluble materials were found for anode workers, rammers, and paste area workers. Excessive exposures to carbon-monoxide, hydrogen- fluoride, and total fluoride also were identified at certain work areas. Exposures to all other agents were within acceptable limits. Respirator use and care was inconsistent. Local and roof ventilation systems were used. The author recommends an epidemiologic study of aluminum workers. Better ventilation systems, work practices, and respirator use programs also are suggested.
NIOSH-Author; NIOSH-Survey; Field-Study; IWS-38-3; Region-10; Health-surveys; Aluminum-industry; Air-sampling; Epidemiology; Industrial-hygiene; Coal-tar
65996-93-2; 7429-90-5; 71-43-2; 630-08-0; 7446-09-5; 7664-39-3; 7782-41-4
Field Studies; Industry Wide
NTIS Accession No.
NIOSH, Western Area Occupational Health Laboratory, Salt Lake City, Utah, 48 pages, 17 references