A Vapor Transport Model That is Consistent With Field and Laboratory Data

摘要

In order to evaluate risk asosciated with hydraocarbon vapor transport we have collected soil gas data in vertical profiles from the surface to depth of contamination at a large number of hydrocarbon-impacted sites. As a result of this effort we have determined that there is a consitent pattern to the vertical profile of soil gases in shallow uncontaminated soil. In general, the oxygen concentration in the soil vapor will decrease from atmospheric values (about 21