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Temporal Variation of VOCs in Soils from Groundwater to the Surface/Subslab
Citation:
SCHUMACHER, B. A., J. H. ZIMMERMAN, G. Swanson, J. Elliot, AND B. Hartman. Temporal Variation of VOCs in Soils from Groundwater to the Surface/Subslab. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-10/118, 2010.
Impact/Purpose:
Tetra Tech EM, Inc. (Tetra Tech EMI) was contracted by the U.S. Environmental Protection Agency (EPA) to assess the temporal variation of volatile organic compounds (VOCs) in soils from groundwater to the surface/subslab over a one-year period and to develop a database of paired macro-purge and micropurge soil gas sample measurements. In addition, a study was conducted to assess the effect of purging parameters (purge rate, purge volume, sample volume) on measured VOC concentrations in soil vapor samples.
Description:
The U.S. Environmental Protection Agency (EPA) is charged by Congress with protecting the nation’s natural resources. Under the mandate of national environmental laws, the EPA strives to formulate and implement actions leading to a compatible balance between human activities and the ability of natural systems to support and nurture life. To meet this mandate, the EPA’s Office of Research and Development (ORD) provides data and scientific support that can be used to solve environmental problems, build the scientific knowledge base needed to manage ecological resources wisely, understand how pollutants affect public health, and prevent or reduce environmental risks.