Category Archives: Vapor Intrusion
How EPA’s New Take on PCE Changes Vapor Intrusion Risk
Several days ago the US Environmental Protection Agency issued its new findings on the toxicity of tetrachloroethene (also known as: PCE, perc, perchloroethylene and tetrachloroethylene). The new information was published on-line in EPA’s Integrated Risk Information System (IRIS) web site. … Continue reading
Vapor Intrusion: The Roach Motel of Environmental Regulations
At last month’s University of Massachusetts Soils Conference, I attended an early afternoon panel discussion on vapor intrusion (VI). While this might normally be a sleepy time of day, the conversational banter among the panelists kept the audience awake and … Continue reading
Vapor Intrusion – Historic Perspectives, Current Considerations
As we all know, one of the hottest topics in the environmental industry right now is vapor intrusion. In Massachusetts, vapor intrusion considerations have been around for more than 20 years, since the beginning of the Massachusetts Contingency Plan (MCP) … Continue reading
Vapor Intrusion – MassDEP Strikes Back?
When the “new” Massachusetts Contingency Plan was published in 1993, the Massachusetts Department of Environmental Protection (MassDEP) was leading the nation with cleanup standards designed to protect against vapor intrusion (VI). Since that time other states and the federal government … Continue reading
