PB2
Vapor Emission Monitoring
Whether Aromatics, Vinylchloride or other toxic volatile compounds are present in the
soil is often only important in a risk assessment if these compounds actually
migrate to the surface and are emitted to where people live and work.
Flux chambers are frequently used. The
one pictured has a double wall HDPE and sampling occurs below the lower layer as
well as in between. When the
compounds are absent between the two layers it is save to assume the lower
chamber did not leak and the concentration determined in that chamber is the
real concentration build up during the period of the test.
