Vapor intrusion occurs when vapor-forming chemicals migrate from a subsurface source into an interior of a structure. A detailed indoor air assessment is completed for a structure prior to sampling to identify any activities or items that can interfere with the sample results. Utilizing specialized vacuum canisters, air can be analyzed to determine concentrations of chemicals present in the soil beneath a structure, directly beneath the concrete slab of a structure, or any part of the breathable air zone in a structure.
