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Benzene pollution from gasoline usage.

S C Foo1

  • 1Department of Community, Occupational and Family Medicine, National University of Singapore.

The Science of the Total Environment
|April 1, 1991
PubMed
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Benzene in local gasolines leads to significant occupational and environmental exposure. Gasoline station workers, mechanics, and drivers face risks, while even the general public can be exposed through ambient air and contaminated water sources.

Area of Science:

  • Environmental Science
  • Occupational Health
  • Toxicology

Background:

  • Benzene is a known carcinogen present in gasoline.
  • Gasoline use poses risks of exposure to benzene for various population groups.
  • Contamination of water bodies by benzene from gasoline sources is a concern.

Purpose of the Study:

  • To quantify benzene exposure levels in different occupational groups and the general public.
  • To assess the contribution of gasoline usage to environmental benzene contamination.
  • To highlight the health risks associated with benzene exposure from gasoline.

Main Methods:

  • Air sampling to determine short-term exposure levels (STEL) and 8-h time-weighted averaged (TWA) exposure.
  • Personal TWA exposure monitoring for gasoline delivery tanker drivers.

Related Experiment Videos

  • Water sampling and analysis for benzene concentration in drains near gasoline stations.

    • Main Results:

    • Occupational benzene exposure varied: gasoline station attendants (STEL 0.064-179 ppm, TWA 0.028-0.71 ppm), mechanics (TWA 0.014-1.7 ppm), and tanker drivers (TWA 0.08-2.37 ppm).
    • Ambient air benzene levels for the general public ranged from 0.0023 to 0.027 ppm.
    • Benzene contamination in water samples from gasoline station drains was significant (1.1-40.4 µg/l).

    Conclusions:

    • Gasoline usage is a major source of benzene exposure for both workers and the general population.
    • Occupational groups handling gasoline exhibit higher benzene exposure levels.
    • Environmental contamination of water by benzene necessitates further investigation and mitigation strategies.