2008年东莞市生活饮用水水质卫生现状分析

目的掌握东莞市生活饮用水水质基本状况,为改善城市供水提供理论依据。方法按照GB/T5750—2006《生活饮用水标准检验方法》、GB3838-2002《地表水环境质量标准》(Ⅲ类)和GB5749—2006《生活饮用水卫生标准》对东莞市2008年村级水厂和镇级水厂的水源水、出厂水、管网末梢水进行采样、检验及评价,并进行统计分析。结果全年有有效水样共1575份,合格1376份,总体合格率为87.4%;合格率由高到低依次为管网末梢水(94.5%)、出厂水(91.0%)、水源水(23.6%)。结论管网末梢水、出厂水合格率较高,而水源水合格率低,加强水源保护刻不容缓。

Analysis on the Quality of Drinking Water in Dongguan in 2008

Objective In order to fully realize the basic conditions of drinking water in Dongguan, and to provide the theoretical basis for improving water quality. Methods Water mples were taken from the waterworks of villages and towns to analyze, test and evaluate according to ＂ Standard Examination Methods for Drinking Water＂ （GB/T5750-2006）, ＂Environmental Quality Standard for Surface Water＂ （~ category） GB3838-2002 and Water Quality Standard for Drinking Water Sources （GB5749-2006）.Results We have collected a total of 1,575 effective samples in all year , 1376 were qualified , the overall pass rate is 87.4%; the pass rates of the terminal tap water is the highest （94.5%）, the second is finished water （91.0%）, the last one is raw water （23.6 %）. Conclusion The qualification rate of the terminal lap water and the finished water is relatively higher, but the qualification rate of lhe raw water is relatively lower. It＇s urgent work to protect water source.