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Hydrochemistry Indicating Groundwater Contamination and the Potential Fate of Chlorohydrocarbons in Combined Polluted Groundwater: A Case Study at a Contamination Site in North China

Lookup NU author(s): Dr Zhantao Han

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Abstract

Groundwater contamination characteristics and the potential fate of chlorohydrocarbons were investigated at a combined polluted groundwater site in North China. Groundwater chemistry and D-2 and O-18 isotope compositions indicated that high salination of groundwater was related with chemical pollution. The elevated salinity plume was consistent with the domain where typical chlorohydrocarbon contaminants occurred. The concentrations of heavy metals, oxidation-reduction potential, and pH in organic polluted areas significantly differed from those in peripheral (background) areas, indicating modified hydrochemistry possibly resulting from organic pollution. Under the presented redox conditions of groundwater, monochlorobenzene oxidation may have occurred when the trichlorohydrocarbons underwent reductive dechlorination. These findings suggested that inorganic hydrochemistry effectively indicated the occurrence of chemical contamination in groundwater and the potential fate of chlorohydrocarbons.

Publication metadata

Author(s): Huang SB, Han ZT, Zhao L, Kong XK

Publication type: Article

Publication status: Published

Journal: Bulletin of Environmental Contamination and Toxicology

Year: 2015

Volume: 94

Issue: 5

Pages: 589-597

Print publication date: 01/05/2015

Online publication date: 07/03/2015

Acceptance date: 02/03/2015

ISSN (print): 0007-4861

ISSN (electronic): 1432-0800

Publisher: Springer

URL: http://dx.doi.org/10.1007/s00128-015-1513-9

DOI: 10.1007/s00128-015-1513-9

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