Vapor Intrusion occurs when vapors from volatile chemicals in contaminated soil or ground water migrate through subsurface soils and/or preferential pathways (such as underground utilities) and impact the indoor air quality of any overlying buildings.*
Recent advancements in toxicological science and inclusion in the ASTM E1527-13 guiding Phase I Environmental Site Assessments have placed priority on evaluating Vapor Intrusion pathways. Regulators across the county are increasing requirements for sampling these pathways.
Sub-slab soil gas sampling is used in existing buildings that may have or be near sources of Vapor Intrustion contaminates.
See how this how testing is conducted:
PM conducts Vapor Intrusion Assessments and can help you understand how vapor issues may affect your transactions.
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