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Health hazard evaluation report: HHE-80-185-842, Department of Municipal Railway, Woods Division, San Francisco, California.
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HHE 80-185-842, 1981 Mar; :1-10
Environmental air samples were analyzed for sulfur-dioxide (7446095), formaldehyde (50000), nitrogen-dioxide (10102440), carbon- monoxide (630080), and total particulate matter emanating from diesel exhaust fumes at the Department of Municipal Railway, Wood Division, (SIC-4172), in San Francisco, California on July 23, and September 23, 1980. A representative of the Civil Service Association, Local 400, requested the evaluation on behalf of an unspecified number of workers. No sulfur-dioxide gas was detected. Carbon-monoxide concentrations ranged from below the limits of detection to 7 parts per million (ppm) compared with the California- OSHA standard of 50ppm. All total particulate samples were well below the California-OSHA standard of 10 milligrams per cubic meter. Informal medical interviews with 12 employees revealed complaints of headache, eye, nose, and throat or long irritation. The authors conclude that health hazards from sulfur-dioxide, formaldehyde, nitrogen-dioxide, carbon-monoxide, and total particulates do not exist, although symptoms reported are consistent with diesel fume exposure. They recommend medical surveillance, educational programs, and ventilation improvements.
NIOSH-Author; HHE-80-185-842; NIOSH-Health-Hazard-Evaluation; Hazards-Unconfirmed; Region-9; Health-surveys; Air-sampling; Combustion-products; Industrial-hygiene; Author Keywords: Maintenance and Service Facilities for Motor Vehicle Passenger Transportation; diesel fumes; sulfur dioxide; formaldehyde; nitrogen dioxide; carbon monoxide
7446-09-5; 50-00-0; 10102-44-0; 630-08-0
Field Studies; Health Hazard Evaluation
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division