Industrial hygiene survey report of Seattle Metro, Ryerson Base, Seattle, Washington, September 12-14, 1989
In an effort to evaluate worker exposure, personal protective equipment and engineering controls during the refueling, repairing, and operating methanol (67561) powered transit buses, a visit was made to the Seattle Metro Ryerson Base (SIC-4111) located in Seattle, Washington. The worst case 8 hour time weighted average was estimated to be only 5 parts per million (ppm). Instantaneous measurements occasionally indicated concentrations up to 2200ppm while draining fuel lines and up to 1400ppm during refueling. No quantifiable methanol vapors were found in the passenger compartment of an operating bus nor were any combustion products detected except in the immediate exhaust stream. Improvements in personal protection and work practices were suggested which included the regular wearing of safety goggles and impermeable elbow length gloves when fueling or opening fuel lines, modifying work practices, regular inspection and immediate repair of fuel line fittings, utilizing engineering controls which minimize the release of methanol liquid or vapors, and developing a plan of action between all responsible parties and providing the appropriate training in the event of a methanol spill or fire.
- Research Organization:
- National Inst. for Occupational Safety and Health, Cincinnati, OH (United States). Div. of Surveillance, Hazard Evaluation and Field Studies
- OSTI ID:
- 5479601
- Report Number(s):
- PB-91-189019/XAB; IWS--163-2-01
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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 CONTROL
AIR POLLUTION MONITORING
ALCOHOLS
CONTROL
DEVELOPED COUNTRIES
ECOLOGICAL CONCENTRATION
FEDERAL REGION X
HAZARDS
HEALTH HAZARDS
HYDROXY COMPOUNDS
INDOOR AIR POLLUTION
INHALATION
INTAKE
METHANOL
NORTH AMERICA
OCCUPATIONAL EXPOSURE
ORGANIC COMPOUNDS
POLLUTION
POLLUTION CONTROL
USA
WASHINGTON