苏州地区城乡生活饮用水水质调查与分析

Analysis and Investigation on the Quality of Drinking Water in Suzhou Urban and Rural Areas

目的掌握苏州地区城镇与农村生活饮用水水质卫生状况及水质指标自然本底值,为建立健全城乡生活饮用水质监测网络提供依据。方法按现行《生活饮用水标准检验方法》(GB/T 5750.2)中《水样的采集与保存》,于2010年丰水期在沿长江和环太湖等典型地区采集城镇和农村集中式供水单位的出厂水水样,按《生活饮用水标准检验方法》(GB/T 5750-2006)进行水质全项目检测分析。结果 2010年丰水期苏州地区城乡饮用水主要不合格指标为铝和三氯乙醛,主要理化常规指标铅、氟化物、硝酸盐、三氯甲烷、铝、氯化物、硫酸盐、溶解性总固体、总硬度、耗氧量等本底值,分别为0.0014、0.62、1.21、0.0046、0.17、48.6、70.0、288.3、118.1、1.44 mg/L。结论苏州沿长江和环太湖等典型地区城乡饮用水水质指标基本符合《生活饮用水卫生标准》(GB5749-2006)水质要求,能够保障城乡居民饮水安全及社会发展需求。

Objectives To explore the hygienic state of drinking water in Suzhou urban and rural areas and to determine the background values of water quality indicators. Methods Water samples were collected according to GB/T5750.2- 2006, Standard Examination Methods for Drinking Water Collection and Preservation. Results Except for aluminum and chlorine exceeding national standards, other water quality indicators met the requirements of the national standards,. Background values of major indicators existed in water were lead 0. 0014 mg/L, fluoride 0.62 mg/L, nitrate 1.21 mg/L, chloroform 0. 0046 mg/L, aluminum 0.17 mg/L, chloride 48.6 mg/L, sulfate 70.0 mg/L, total dissolved solids 288.3 mg/L, total hardness 118.1 mg/L and oxygen consumption 1.44 mg/L. Conclusion The quality of drinking water in urban and rural areas along Yangtze River and around Taihu lake in Suzhou basically met the requirements of national standards （ GB5749 - 2006） , and could ensure inhabitants＇ health and safety and meet the demand for social development.