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丹江口水库是南水北调中线工程的水源地，其水质优劣对工程效益有直接影响。长江流域水环境监测中心首次采用气相色谱仪-ECD,分别于1995年3月和10月，对丹江口水库水体中的微量有机氯污染物进行了概要性调查。结果表明，丹江口水库中微量有机氯污染物的含量很低，对水体尚未造成污染。
Danjiangkou Reservoir is a water source for the mid-route of the South-to-North Water Diversion Project. The quality of its water has a direct impact on project benefits. The Yangtze River Basin Water Environment Monitoring Center for the first time using gas chromatography - ECD, respectively, in March 1995 and October, the Danjiangkou Reservoir trace organochlorine pollutants were surveyed. The results show that the content of trace organochlorine pollutants in Danjiangkou reservoir is very low, which has not caused any pollution to the water body.