长江流域江苏段饮用水水源地水质安全评价与分析

Water Quality Evaluation of Drinking Water Source Region at Jiangsu Section of Yangtze River Basin

江苏省是长江三角洲的核心区域。新一轮的沿江开发战略的实施形成长江流域江苏段高强度高密度的产业集聚,对沿岸地区饮用水源地水质安全造成潜在的威胁。本文采用内梅罗方法对该段10个饮用水源地水质安全进行综合评价,确定主要污染物为氨氮、COD、铅等,并进行主要污染物与工业生产之间的相关性分析。结果表明:目前长江流域江苏段饮用水水质处于清洁等级,水质安全状况为良好状态,但部分水质监测因子仍有超标现象。并在此基础上提出加强长江流域江苏段水源地保护的对策建议。

Jiangsu Province is a core region of Yangtze River delta. The implementation of new round of development strategy along the Yangtze River has resulted in high-intensive and high-density industrial agglomeration. And this brings a potential threat to the security of potable-water source. After synthetically evaluating the condition in 10 potable-water source region with Nemerow method, we confirm that the main pollutants are ammonia nitrogen, COD and plumbous compound, and then conduct the correlation analysis of major pluntants and industrial production. The results show that： the potable-water quality in Jiangsu section of the Yangtze River basin is in clean level, the security of potable-water source is in good condition, but some of the water quality monitoring factors are still exceeding. Based on this, we put forward some countermeasures to strengthen the protection of the potable-water source in Jiangsu section of the Yangtze River basin.