Vapor Intrusion Monitoring

The vapor intrusion pathway of organic contaminants may be a significant exposure mechanism in areas where residential, commercial, industrial or public buildings are present over or adjacent to contaminated soils and/or groundwater. Beacon Environmental’s applied technologies identify vapor intrusion pathways and monitor the indoor air of such buildings for potential contamination.

Vapor intrusion and indoor air monitoring using sorbent samplers provided and analyzed by Beacon Environmental in accordance with EPA Methods TO-17 and TO-15 satisfy key EPA objectives and are a reliable way to provide the data needed to determine the

• lateral extent and spatial variability of contamination in soil and groundwater
• presence of vapor intrusion pathways beneath current or future buildings
• scope and effectiveness of remedial activities
• concentrations or emission flux rates of VOCs and SVOCs
• time-weighted average concentrations by sampling over several days or weeks

The following publications are available to examine how sorbent technologies compare to canisters for both indoor air and soil environments.

Indoor Air Method Comparison
EPA Methods TO-17, TO-15 and British MDHS 80

Soil Gas Method Comparison
EPA Methods TO-17 and TO-15