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Main Title Chemical Distributions and Anaerobic Transformation of Chlorinated Aliphatic Hydrocarbons in a Sand Aquifer.
Author Semprini, L. ; Kitanidis, P. K. ; Kampbell, D. ; Wilson, J. T. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;Stanford Univ., CA. Dept. of Civil Engineering. ;Oregon State Univ., Corvallis. Dept. of Civil Engineering.
Publisher 1994
Year Published 1994
Report Number EPA/600/A-95/111;
Stock Number PB95-273777
Additional Subjects Chlorine aliphatic hydrocarbons ; Vinyl chloride ; Water pollution sampling ; Aquifers ; Anaerobic processes ; Ethylene ; Dehydrohalogenation ; Reduction(Chemistry) ; Chemical reactions ; Dechlorination ; Transport properties ; Environmental transport ; Wells ; TCE(Trichloroethylene) ; Cis-dichloroethylene ; Methanogenesis
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB95-273777 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
The authors estimated the distribution of chlorinated aliphatic hydrocarbon (CAHs) from groundwater samples collected along three transects in a sand aquifer. Trichloroethylene (TCE) leaked and contaminated the aquifer probably more than a decade before the authors collected the measurements. The data show significant concentrations of TCE, cis-1,2-dichloroethylene (c-DCE), vinyl chloride (VC), and ethene. The authors attributed DCE, VC, and ethene to the reductive dehalogenation of TCE. The CAH concentrations varied significantly with depth and correlate with sulfate and methane concentrations. Anoxic aquifer conditions exist with methane present at relatively high concentrations at depth. The authors estimated that about 20% of TCE has dechlorinated to ethene. The analysis of the data enhanced the authors' knowledge of natural in situ transformation and transport processes of CAHs.