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Vapor Intrusion

Vapor Intrusion graphic, which shows contaminated groundwater seeping into soil and contaminating a home.

This 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.

If you have concerns about vapor intrusion where you live or work, please contact your state health department.

EPA Technical Documents, Tools and Other Resources to Support Vapor Intrusion Assessment and Mitigation Activities



Other Resources

The Brownfields and Land Revitalization Technology Support Center has developed a primer for land revitalization stakeholders concerned about vapor intrusion, including property owners, municipalities, and real estate developers; see Brownfields Technology Primer: Vapor Intrusion Considerations for Redevelopment (PDF) (49 pp, 1.2MB, About PDF) Exit EPA Disclaimer. This document provides an overview of vapor intrusion and how it can affect redevelopment. It also summarizes techniques for quickly and cost effectively assessing the potential for vapor intrusion, which can be implemented in consultation with qualified scientists and engineers.

Fact Sheet for Correcting the Henry's Law Constant for Temperature (PDF) (9 pp, 186K, About PDF)

Related Links

EPA HRS Rule-Making Effort

EPA is working toward a proposed rulemaking to add a new screening component to OSWER's Hazard Ranking System (HRS), which would allow sites impacted by vapor intrusion or intrusion of other subsurface contamination to be evaluated for placement on the Superfund National Priorities List (NPL). Through this change, the HRS could directly consider the human exposure to contaminants that enter building structures from the subsurface environment.

Basic Information Events Related Links Contacts
Top Questions/Tasks
  1. What is Vapor Intrusion?

Rich Kapuscinski,
(703) 305-7411
Office of Solid Waste Emergency Response (OSWER)
USEPA Headquarters
Ariel Rios Building
1200 Pennsylvania Ave, N.W.
Mail Code: 5204P
Washington, D.C. 20460

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