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Health hazard evaluation report: HETA-98-0041-2741, San Francisco Municipal Railway, Flynn Facility, San Francisco, California.
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, HETA 98-0041-2741, 1999 Jun; :1-27
The Director of Public Transportation for the City and County of San Francisco, California, requested that the National Institute of Occupational Safety and Health (NIOSH) conduct a health hazard evaluation (HHE) at the San Francisco Municipal Railway's Flynn Facility. This facility serves as a base of operations for approximately 123 diesel -powered buses, leading to employee exposures to diesel-engine exhaust emissions in the workplace air. The requester, concerned about the potential adverse effects of these exposures on workers' health and about the apparent ineffectiveness of the facility's ventilation systems and other exposure-control measures, asked that NIOSH evaluate workplace exposures along with the ventilation system and other control measure and recommend appropriate improvements.
Health-hazard-evaluation; HETA; Diesel-exhaust; Nitrogen-oxides; Carbon; Ventilation; Author Keywords: Local and suburban transit, Auxiliary Code No. 9, Garages - maintenance; diesel-engine exhaust emissions; diesel-exhaust particulates; elemental carbon; organic-based carbon; oxides of nitrogen; nitrogen dioxide; nitric oxide; ventilation; dilution ventilation; local exhaust ventilation
Field Studies; Hazard Evaluation and Technical Assistance
NTIS Accession No.
Other Occupational Concerns
National Institute for Occupational Safety and Health
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division