EPA MAY REVAMP VAPOR INTRUSION TESTS FOR SOIL, WATER POLLUTANTS

May 20, 2005
EPA officials are discussing plans to raise the thresholds for triggering investigations of public health risks from indoor air pollutants that stem from groundwater and soil contamination beneath residential and industrial buildings, according to EPA sources and documents. While EPA lacks authority to regulate indoor air, the agency is seeking to address vapors that seep indoors from contaminated soil and groundwater under buildings, known as vapor intrusion. In 2002, EPA unveiled a draft guide, Guidance for Evaluating Vapor Intrusion to...


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