2004~2009年重慶市南岸區生活飲用水水質監測

摘 要 目的:了解重慶市南岸區近6年生活飲用水水質狀況，為改善南岸區飲水質量提供建議。方法:2004～2009年對重慶市南岸區共4131二次供水、末梢水、出廠水和水源水進行監測，采用國家標準進行評價。結果:二次供水、末梢水、出廠水和水源水的合格率分別為96.28%、88.16%、73.49%和9.55%。末梢水5項監測項目中以游離性余氯合格率(97.80%)最高，總大腸菌群合格率(93.15%)最低。二次供水的11項監測項目中:肉眼可見物、游離余氯、pH值合格率每年均達到100%。結論:二次供水和末梢水水質合格率較高，出廠水需要進一步加強水質循環消毒的處理，水源水需要我們社會成員進一步強化環境保護意識，愛護環境，同時也需要政府出臺保護水源水的相關政策法規，加大水源水的保護力度。

關鍵詞 生活飲用水 二次供水 末梢水 出廠水 水源水

doi:10.3969/j.issn.1007-614x.2010.22.216

AbstractObjective:To know about the quality of drinking water in Nan`an District and to provide suggestions for improving it.Methods:4131 samples of drinking water were selected to evaluate the quality of water by using the national standard from 2004 to 2009.Results:The qualified rates of urban secondary water，supply tap water，chlorinated water，and source water were 96.28%、88.16%、73.49% and 9.55%.In five indexes of supply tap water，the free residual chlorine `qualified rate was the highest，and moreover，the index of coli group was the lowest.The eligible indexes of Secondary water were visible residue，free residual chlorine and ph.Conclusions:The quality of Secondary water and supply tap water were higher than others.Chlorinated water should be more cleared.We should enhance consciousness of environmental protection to protect environment.The relevant departments should pay special attention to the existed problems of source water.

Key wordsdrinking water;Secondary water;Supply tap water;Chlorinated water;Source water