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Human and Ecological Risk Assessment: An International Journal

Volume 5, Issue 4, 1999

Two-Dimensional Monte Carlo Simulation and Beyond: A Comparison of Several Probabilistic Risk Assessment Methods Applied to a Superfund Site

Two-Dimensional Monte Carlo Simulation and Beyond: A Comparison of Several Probabilistic Risk Assessment Methods Applied to a Superfund Site

DOI:
10.1080/10807039991289680
Ted W. Simona

pages 823-843

Available online: 03 Jun 2010

Abstract

Four different probabilistic risk assessment methods were compared using the data from the Sangamo Weston/Lake Hartwell Superfund site. These were one-dimensional Monte Carlo, two-dimensional Monte Carlo considering uncertainty in the concentration term, two-dimensional Monte Carlo considering uncertainty in ingestion rate, and microexposure event analysis. Estimated high-end risks ranged from 2.0×10−4 to 3.3×10−3. Microexposure event analysis produced a lower risk estimate than any of the other methods due to incorporation of time-dependent changes in the concentration term.

Keywords

 

Details

  • Citation information:
  • Available online: 03 Jun 2010

Author affiliations

  • a U.S. Environmental Protection Agency, Atlanta, GA

Librarians

Taylor & Francis Group