Chemical Vapor Intrusion and Residential Indoor Air

Sites with volatile organic compound (VOC) contamination are potential public health hazards. Contact with contaminated soil and the contamination of drinking water are widely recognized pathways of exposure. One pathway involves VOC movement from groundwater or soil into nearby building foundations, and then into the indoor air that people breathe. This pathway is commonly known as chemical vapor intrusion.

Guidance for the General Public

Fact sheet describing the vapor intrusion pathway, how it is investigated, and what can be done if vapor intrusion is a concern in or near your home.

Resources for Environmental Professionals



Last Revised: August 26, 2016