长江口南通地区农村集中式饮用水源水质状况调查

Investigation of Centralized Source and Drinking Water Quality for Yangtze Estuary in Nantong Area

对南通市24座乡镇地表水厂以及199座乡镇地下水厂的水源水质状况进行了调查。结果表明,地表水水源地中有14座水厂达标,其取水量占地表水取水总量62.8%。水体中主要污染物是NH3-N、石油类、IMn。全市乡镇地下水厂饮用水源水质达标水厂为56座,其取水量占地下水取水总量的26.2%。全市地下水中主要污染物为NH3-N、氯化物、亚硝酸盐氮和铁。提出,应严格划定乡镇饮用水源地保护区;加快区域供水网络建设;开展饮用水水源地环境综合整治;严格执行地下水开采计划;建立饮用水水源地监测预警体系;健全管理机制,保障乡镇居民的饮水安全。

Situation of source and drinking water quality was investigated in 24 town surface drinking water plants and 199 town ground drinking water plants around Nantong city.The results indicated that 14 surface drinking water plants which provided 62.8% surface water conformed hygiene standards and pollutants in the water were NH3-N,petroleum and IMn.56 ground drinking water plants which supplied 26.2% ground water met hygiene standards and pollutants in groundwater were NH3-N,chloride,nitrite nitrogen and iron.It provided measurements to ensure the safety of drinking water for township residents such as strictly defining township drinking water source reserves,accelerating regional water network construction,comprehensive improving environment for drinking water source,Strict implementing of groundwater exploitation plan,establishing drinking water monitoring and warning system,improving the management system.