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Chemical Spill Exposure Assessment

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  • Stuart M. Brown
  • Abraham Silvers

Abstract

POSSM, the PCB On‐Site Spill Model, is a contaminant transport model developed to predict environmental concentrations associated with a chemical spill. The model predicts daily changes in chemical concentrations on a spill site (e.g., in soil and on vegetation) and losses of chemical due to volatilization, surface runoff/soil erosion, and leaching to groundwater. Spill areas consisting of soil/vegetation and/or an impervious surface (e.g., asphalt and concrete) can be analyzed, as can different spill cleanup practices. POSSM is used to analyze exposure levels associated with a hypothetical capacitor spill. While the model was developed for PCB spills, it is generally applicable to a number of organic compounds.

Suggested Citation

  • Stuart M. Brown & Abraham Silvers, 1986. "Chemical Spill Exposure Assessment," Risk Analysis, John Wiley & Sons, vol. 6(3), pages 291-299, September.
    • Handle: RePEc:wly:riskan:v:6:y:1986:i:3:p:291-299
    DOI: 10.1111/j.1539-6924.1986.tb00221.x
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