Vapor Intrusion and Indoor Air Quality

Vapor intrusion is the migration of volatile chemicals from the subsurface into overlying structures. Generally, this occurs when volatile organic compounds (VOCs) that have been released to soils and groundwater volatilize and migrate through the soil and along preferential pathways, eventually finding their way through building foundations and into the interior airspaces. The resulting vapor intrusion has the potential to cause acute and/or chronic health problems. For example, indoor air quality is a primary concern with regard to licensing daycare and senior housing facilities in New Jersey.