New Research May Further Delay EPA's Troubled Vapor Intrusion Guidance

The upcoming release of new findings on how wind can affect indoor air pollution caused by groundwater and soil contaminants, a phenomenon known as vapor intrusion, may further complicate EPA efforts to develop guidance for determining public health risks. Industry has long opposed efforts by EPA and states to provide guidance on vapor intrusion, and the new findings could further delay the agency's release of an updated guide. The research also comes as EPA scientists are raising new concerns over...