随着长江中上游地区工业、农业的快速发展 ,长江水环境质量日趋下降。为了解南京市长江源水及其饮用水中有机物的污染现状 ,探讨其对人体健康的潜在远期影响 ,建立完善的水质管理措施 ,1997年 8月对南京市长江源水及其饮用水进行了致突变性研究。1　材料与方法1 1　水样的采集 With the rapid development of industry and agriculture in the middle and upper reaches of the Yangtze River, the quality of water environment in the Yangtze River is declining. In order to understand the status quo of organic matter pollution in Yangtze River source water and its drinking water in Nanjing and explore its potential long-term impact on human health and to establish a sound water quality management measures, in August 1997, the Yangtze River source water and drinking water in Nanjing Mutagenicity research. 1 Materials and methods 1 1 water samples collected