Industrial hygiene survey report of Southern California Rapid Transit District (SCRTD), Division 1 Bus Garage, Los Angeles, California, April 23-26, 1990. Final report
In an effort to evaluate worker exposure, fire safety, personal protective equipment, and engineering controls during the refueling, repairing and operating of methanol (67561) powered transit buses, an on site visit was made to the Southern California Rapid Transit District (SCRTD) Division 1 bus garage in Los Angeles. Results of data gathered during this visit suggested that inhalation exposures to methanol during bus refueling operations were well controlled by the strict use of a vapor recovery system. Worst case exposures in the fueling area occurred after engine startup when intermittent peak concentrations of up to 233 parts per million (ppm) were recorded. Protective clothing was worn regularly by fuelers. Exposures during bus maintenance were considerably higher, with instantaneous personal exposures up to 630 ppm being recorded and area concentrations near 1040 ppm. The author recommends modifications to current work practices and processes, improvements in ventilation of the garage area, and regular wearing of suitable protective clothing whenever changing fuel filters on methanol busses.
- Research Organization:
- National Inst. for Occupational Safety and Health, Cincinnati, OH (United States). Div. of Surveillance, Hazard Evaluation and Field Studies
- OSTI ID:
- 5674306
- Report Number(s):
- PB-91-185264/XAB; IWS--163-2-03
- Country of Publication:
- United States
- Language:
- English
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540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
AIR POLLUTION MONITORING
ALCOHOLS
ECOLOGICAL CONCENTRATION
HAZARDS
HEALTH HAZARDS
HYDROXY COMPOUNDS
INDOOR AIR POLLUTION
INHALATION
INTAKE
METHANOL
OCCUPATIONAL EXPOSURE
ORGANIC COMPOUNDS
PERSONNEL
POLLUTION
VENTILATION