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本文对D湖和长江为水源的末梢自来水中非挥发性有机物的致突变性及其化学组分进行了比较研究。Ames试验结果表明，D湖自来水样的致突变活性高于长江自来水样，前者MR阳性率为81.3％，后者为31.3％。色谱质谱（GC／MS）分析发现D湖自来水样检出化合物36种，含EPA确认的有毒物5种，长江自来水样检出32种，含EPA确认的有毒物仅2种。Ames试验和GC／MS分析的结果一致；这两项研究的结果也有力地支持了不久前进行的流行病学研究的结果，该流行病学研究发现长期饮用D湖自来水的人群某些癌症的死亡率明显高于饮用长江自来水的人群。表明D湖末梢自来水对健康的潜在危害较大。
In this paper, the mutagenicity and chemical composition of non-volatile organic compounds in tap water from D Lake and the Yangtze River were compared. The results of Ames test showed that the mutagenic activity of water samples from Lake D was higher than that from the Yangtze River water samples. The positive rate of MR in the former was 81.3% and the latter was 31.3%. Chromatography-mass spectrometry (GC / MS) analysis showed that there were 36 compounds detected in tap water samples of D Lake, including 5 species confirmed by EPA, 32 species detected in Yangtze River water samples and only 2 species confirmed by EPA. Ames test and GC / MS analysis of the results; these two studies also strongly support the results of epidemiological studies conducted recently, the epidemiological study found that long-term drinking water in Lake D, some people with cancer Mortality was significantly higher than drinking water from the Yangtze River. This indicates that the potential hazard to health of tap water at the end of Lake D is greater.