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某市饮用水多年来受上游化学工业污水的严重污染。据调查和监测,江水污染物中含有多种潜在致癌物质。哈医大卫生系环境卫生教研组用松花江水中的有机污染物作实验已证实江水中有使小鼠细胞染色体致畸变物质和使鼠伤寒沙门氏菌回复突变的物质,这说明江水有潜在的致癌危险。因此我们对长期饮用江水的某市百万居民恶性肿瘤死亡率增高和饮水污染的关系进行了调查和分析研究。结果报告如下。
Drinking water in a city for many years by the upstream chemical industry, serious pollution of sewage. According to the survey and monitoring, river water pollutants contain a variety of potential carcinogens. Harbin Medical University Environmental Health Department of Environmental Health Research Unit with the Songhua River water organic pollutants for experiments have confirmed that river water in the mouse cell chromosomal teratogenic substances and make Salmonella typhimurium back to mutate material, indicating that the river water potential carcinogenic risk. Therefore, we investigated and analyzed the relationship between the increase of malignant tumor mortality and drinking water pollution of one million inhabitants of a city who drink long-term river water. The results are reported below.