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Description:In response to a request from the American Petroleum Institute (API), an evaluation was undertaken of the exposure to the gasoline additive methyl-tert-butyl-ether (1634044) (MTBE) among automotive service station (SIC-5541) attendants. Exposures to benzene (71432), toluene (108883), and xylene (1330207) were also measured. Studies were conducted at two facilities dispensing gasoline containing 1% MTBE, two dispensing gasoline containing 12% MTBE, and two facilities using a phase-II type vapor recovery system. The data set consisted of 121 personal breathing zone samples collected for about 4-hour periods. Occupational exposure to MTBE among service station attendants at stations required to use at least 12% MTBE were less than 1 part per million (ppm). Exposures at stations using MTBE at less than 1% of the fuel were less than 0.1ppm. Temperature, wind speed, and amount of fuel pumped by the attendant were the three variables which most affected the exposure levels. No significant relationship was found between benzene exposure and MTBE content. Vapor recovery had no significant effect on reducing exposure to MTBE or benzene. The author concludes that exposure to MTBE, even at stations using 12% MTBE blends, presented no health hazard to the workers.
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Pages in Document:32 pdf pages
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Contributor:Burton, Nancy C.;Cook, Calvin K.;Hornung, Richard;Kelly, John E.;Palassis, John;
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NIOSHTIC Number:nn:00215341
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NTIS Accession Number:PB93-234086
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Citation:Cincinnati, Ohio: 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 88-304-2326, 1993 Jun;:1-32;
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Federal Fiscal Year:1993
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Peer Reviewed:False
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