Volatile Chlorinated Hydrocarbons in Ground and Lake Waters

摘要: ABSTRACT Tetrachloroethylene concentrations in ground waters the Zurich area have been found to range from less than 0.1 82 μg/1, with highest an industrial section of Zurich. A subsequent survey this a series volatile chlorinated hydrocarbons, including 1,1,1-trichloroethane, carbon tetrachloride, 1,2-dichloroethylene, trichloroethylene, and tetrachloroethylene. In all samples, tetrachloroethylene was dominant compound, between 0.4 237 μg/1. The most likely source water contamination is chronic spillage small quantities solvent. Vertical profiles several hydrocarbons measured Lake (50-120 ng/1), 1.4- dichlorobenzene (10-35 tetrachloride (20-35 ng/1) were abundant compounds. Profiles 1.4-dichlorobenzene showed peaks maximum concentration at depth about 10 m. These maxima are believed represent tongue treated sewage effluent. Thus these two persistent chemicals may be useful as microtracers wastewater movement lakes. Quantitative details organic compounds such those studied for report highly desirable since used sources public drinking supplies.