Transformation of Monoaromatic hydrocarbons to organic acids in anoxic groundwater environment

Cozzarelli, I. M.; Eganhouse, R. P.; Baedecker, M. J.

Abstract:

The transformation of benzene and a series of alkylbenzenes was studied in anoxic groundwater of a shallow glacial-outwash aquifer near Bemidji, Minnesota, U.S.A. Monoaromatic hydrocarbons, the most water-soluble components of crude oil, were transported downgradient of an oil spill, forming a plume of contaminated groundwater. Organic acids that were not original components of the oil were identified in the anoxic groundwater. The highest concentrations of these oxidized organic compounds were found in the anoxic plume where a decrease in concentrations of structurally related alkylbenzenes was observed. These results suggest that biological transformation of benzene and alkylbenzenes to organic acid intermediates may be an important attenuation process in anoxic environments. The transformation of a complex mixture of hydrocarbons to a series of corresponding oxidation products in an anoxic subsurface environment provides new insight into in situ anaerobic degradation processes. ?? 1990 Springer-Verlag New York Inc.

Genre:

Article

ProdID:

70016011

Citation Author:

Cozzarelli, I. M.; Eganhouse, R. P.; Baedecker, M. J.

Citation Contributing Office:

Citation Datum:

Citation Day:

Citation Edition:

Citation Editor:

Citation End Page:

141

Citation Issue:

Citation Keywords:

Citation Language:

English

Citation Larger Work Title:

Environmental Geology and Water Sciences

Citation LatN:

Citation LatS:

Citation LonE:

Citation LonW:

Citation Month:

Citation No Pagination:

Citation Number Of Pages:

Citation Online Only Flag:

Citation Phsyical Description:

Citation Projection:

Citation Public Comments:

Citation Publisher:

Citation Series:

Citation Series Code:

Citation Series Number:

Citation Search Results Text:

Transformation of Monoaromatic hydrocarbons to organic acids in anoxic groundwater environment; 1990; Article; Journal; Environmental Geology and Water Sciences; Cozzarelli, I. M.; Eganhouse, R. P.; Baedecker, M. J.