This EPA website provides some key information on vapor intrusion for members of the general public and environmental professionals. In addition to basic information about vapor intrusion, the site contains technical and policy documents, tools and other resources to support vapor intrusion environmental investigations and mitigation activities, such as:
1. Technical Guide for Assessing and Mitigating the Vapor Intrusion Pathway from Subsurface Vapor Sources to Indoor Air (June 2015)
2. Technical Guide For Addressing Petroleum Vapor Intrusion At Leaking Underground Storage Tank Sites. (June 2015)
3. OUST's Petroleum Vapor Intrusion Compendium
4. Background Indoor Air Concentrations of Volatile Organic Compounds in North American Residences (1990 to 2005): A Compilation of Statistics for Assessing Vapor Intrusion.
5. EPA Vapor Intrusion Database: Evaluation and Characterization of Attenuation Factors for Chlorinated Volatile Organic Compounds and Residential Buildings.
6. Conceptual Model Scenarios for the Vapor Intrusion Pathway.
7. Indoor Air Vapor Intrusion Mitigation Approaches.
8. Vapor Intrusion Screening Levels
Petroleum Hydrocarbons And Chlorinated Hydrocarbons Differ In Their Potential For Vapor Intrusion.