黄爽兵,韩占涛*,韩占涛,孔祥科
Groundwater
contamination characteristics and the potential fate of chlorohydrocarbons were
investigated at a combined polluted groundwater site in North China.
Groundwater chemistry and 2D and 18O 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.