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December 10, 2023
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Petroleum Vapor Intrusion: Fundamentals of Screening, Investigation, and Management
Hosted by Interstate Technology and Regulatory Council (ITRC)

Petroleum vapor intrusion is the process by which volatile petroleum hydrocarbons released as vapors from light nonaqueous phase liquids (LNAPL), petroleum-contaminated soils, or petroleum-contaminated groundwater migrate through the vadose zone and into overlying buildings. Fortunately, this migration is often limited by microorganisms that are normally present in soil. The organisms consume these chemicals, reducing them to nontoxic end products through the process of biodegradation. The ITRC Technical and Regulatory Guidance Web-Based ...  [click for more]

For general information contact ITRC Training Program by telephone at 402-201-2419 or via e-mail at

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