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Vapor Intrusion

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Resources

Design Solutions for Vapor Intrusion and Indoor Air Quality

This fact sheet provides an overview of technical and health issues regarding chemical vapor intrusion into indoor air, and how to address these issues to foster land redevelopment.

Evaluating Vapor Intrusion Using the Johnson and Ettinger Model

This on-line calculator implements the Johnson and Ettinger (J&E) (Johnson and Ettinger, 1991) simplified model to evaluate the vapor intrusion pathway into buildings. This J&E model replicates the implementation that the US EPA Office of Solid Waste and Emergency Response (OSWER) used in developing its draft vapor intrusion guidance, but includes a number of enhancements that are facilitated by web implementation: temperature dependence of Henry's Law Constants, automatic sensitivity analysis of certain parameters, and others described on the background page.

ITRC Vapor Intrusion Team

The ITRC Vapor Intrusion Team will research and gather information on indoor air as related to subsurface soil and groundwater contamination to determine when it may need to be evaluated, its resultant sampling and characterization techniques, and its subsequent remediation technologies.

OSWER Draft Guidance for Evaluating the Vapor Intrusion to Indoor Air Pathway from Groundwater and Soils (Subsurface Vapor Intrusion Guidance)

This draft guidance is intended to aid in evaluating the potential for human exposure from the vapor intrusion pathway given the state-of-the-science.

User's Guide for Evaluating Subsurface Vapor Intrusion into Buildings

This manual provides documentation and instructions for using the Johnson and Ettinger (J&E) vapor intrusion model.

Vapor Intrusion Guidance, New Hampshire Department of Environmental Services, July 2006

This document provides guidance for the evaluation and mitigation of vapor intrusion resulting from volatile organic compounds (VOC) at contaminated sites in New Hampshire. Where appropriate this document may be used in conjunction with applicable DES rules for corrective action at contaminated sites and the DES Risk Characterization and Management Policy (RCMP).

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