Record Display for the EPA National Library Catalog

RECORD NUMBER: 10 OF 35

OLS Field Name OLS Field Data
Main Title Field Evaluation of a Simple Microcosm Simulating the Behavior of Volatile Organic Compounds in Subsurface Materials.
Author Wilson, J. T. ; Smith, G. B. ; Cochran, J. W. ; Barker, J. F. ; Roberts, P. V. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;Oklahoma Univ., Norman. Environmental and Ground Water Inst. ;Waterloo Univ. (Ontario). Dept. of Earth Sciences. ;Stanford Univ., CA. Dept. of Civil Engineering.
Year Published 1987
Report Number EPA/600/J-87/207;
Stock Number PB88-170550
Additional Subjects Volatile organic compounds ; Simulation ; Behavior ; Reprints ; Microcosms ; Subsurface materials
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB88-170550 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 9p
Abstract
A simple batch microcosm had previously been developed to simulate the behavior of volatile organic compounds in unconsolidated subsurface material. The microcosm was evaluated by comparing the behavior of tetrachloroethylene, bromoform, carbon tetrachloride, 1,2-dichlorobenzene, and hexachloroethane in (1) the microcosm, (2) the microcosm constructed with autoclaved material, and (3) an experimental plume constructed in a joint field study conducted by Stanford University and the University of Waterloo at a site on Canadian Forces Base, Borden, Ontario. The microcosm study adequately simulated nonbiological removal of these compounds from solution in the experimental plume. However, it failed to detect biotransformation of 1,2-dichlorobenzene despite extensive degradation of this compound in the field. One of the samples of aquifer material used to construct the microcosms had a much greater capacity to biotransform bromoform and carbon tetrachloride than did the other samples of aquifer material, or the aquifer in general. As a result, the microcosm study overestimated biotransformation of bromoform and carbon tetrachloride. The microcosm accurately simulated the behavior of tetrachloroethylene and hexachloroethane.