苏州市吴中区2001～2004年生活饮用水水质监测结果

目的掌握苏州吴中区生活饮用水卫生状况,防止水源性疾病的发生。方法对生活饮用水水源水(太湖水)和吴中区自来水厂出厂水、末梢水分别在丰水期、平水期和枯水期进行水质全分析和结果评价。结果水源水(太湖水)有机物污染严重,大肠菌群指标多数样品大于1 000个/L,化学耗氧量多数样品超标,氨氮、硝酸盐氮均超标。结论虽然水源水受有机物污染,但自来水厂的出厂水和末梢水均符合国家颁布的《生活饮用水卫生标准》。

Surveillance of the Drinking Water Quality in Wuzhong District of Suzhou

[Objective]To master the hygienic situation of the drinking water in Wuzhong district and prevent the occurrence of water borne diseases.[Methods] Water quality analysis and evaluation were conducted on the water from the source(Taihu Lake),the water factory and the tap water in different periods.[Results]Organic pollution in the source water is rather serious.The coli-group indexes in most of the samples were more than 1 000/L;the chemical oxygen consumption of most of the samples exceeded the standard;ammonia,nitrogen and nitrate all exceeded the standard.[Conclusion]Despite the serious organic pollution in the source water,the water from the factory and tap water all accord with the National Hygienic Standard for Drinking Water.