Comparison of 20 Vapor Intrusion Screening Levels and Indoor Air Remediation Standards.Vapor Intrusion Screening Levels and Indoor Air Remediation Standards Tables Posted May 2021.Vapor Intrusion Template Letters & Results Tables Posted October 2021.Installation Procedures for Permanent Sub-slab Probes Posted August 2016.Background Levels of Volatile Organic Chemicals in Homes: A Review of Recent Literature Posted August 2016.Vapor Intrusion Technical Information and Updates: Information on the vapor intrusion pathway. It is recommended that the user periodically refer to the NJDEP Vapor Intrusion web site for the latest The Vapor Intrusion Technical Guidance Version 5.0, Posted May 2021 The vapor intrusion information linked from this page represent specific guidance developed by the Department toĪssist in the investigation of the vapor intrusion pathway at contaminated sites. Vapor intrusion refers to this migration of volatileĬhemicals from the subsurface into overlying buildings. ![]() ![]() Preferential pathways (such as underground utilities) thereby impacting the indoor air quality of area buildings. The presence of volatile chemicals in contaminated soil or ground water offers the potential for chemical vapors to migrate through subsurface soils and/or
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