Benzene exposure in the United States 1978-1983: an overview.
Due to the interest in reducing the benzene exposure limit from 10 to 1 ppm, the benzene exposure data collected since 1977 were compiled and evaluated. Some 38,000 data points representing either time-weighted air samples or persons exposed were collected from five industries which produce and/or use benzene and two government organizations. Of the reported data, 87% represented exposure levels of 1.0 ppm or less. Petroleum and chemical operations where elevated exposure levels were reported included petrochemical and bulk loading operations. Benzol and by-product plants in the iron and steel industry showed similar elevated results.
D000395:Air Pollutants, Occupational / Q000633:toxicity*; D001554:Benzene / Q000633:toxicity*; D006801:Humans; D014481:United States
D000395:Air Pollutants, Occupational; D001554:Benzene