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Application of Human Health Risk Assessment to Petroleum Hydrocarbon Impacted Previous HitSoilNext Hit: A Case Study

Alan C. Nye, Glenn C. Millner, Philip T. Goad, Gerald W. Knudsen, and Greg Shepherd

A human health risk assessment of motor oil- and diesel- impacted Previous HitsoilNext Hit was conducted for a site located in Oakland, California that will be a portion of a future freeway. Currently, there is no single risk assessment approach for evaluating human health risks resulting from exposure to petroleum hydrocarbons.

To facilitate regulatory acceptance of the risk assessment, three different methods were used to evaluate human health risks posed by petroleum constituents in Previous HitsoilNext Hit. The results of applying the American Society for Testing and Materials (ASTM), American Petroleum Institute's (API) Risk/Exposure Assessment Decision Support System (DSS), and Massachusetts Department of Environmental Protection (MDEP) approaches to petroleum hydrocarbon contaminated soils and their impacts on Previous HitsoilTop remediation will be presented. The similarities and differences among these three risk assessment approaches will also be reviewed.

AAPG Search and Discover Article #91019©1996 AAPG Convention and Exhibition 19-22 May 1996, San Diego, California