California Attenuation Factor for Vapor Intrusion – What You Need to Know

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California Attenuation Factor for Vapor Intrusion – What You Need to Know

The California DTSC will soon be publishing its study to support development of California-specific attenuation factors (AFs) for vapor intrusion to indoor air. Read this post to learn about the study’s preliminary findings and why site cleanup + Vapor Intrusion mitigation systems are the preferred solution.

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California’s New Draft Supplemental Guidance for Screening and Evaluating Vapor Intrusion

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California’s New Draft Supplemental Guidance for Screening and Evaluating Vapor Intrusion

Toxic vapors can move from contaminated groundwater and soil to indoor air, potentially harming human health. California’s new draft Supplemental Guidance promotes a state-wide standard practice and consistency for vapor intrusion screening and sampling. Here’s what you need to know.

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