2013年大连市农村生活饮用水水质卫生监测结果

Monitoring results of drinking water quality in rural area of Dalian in 2013

目的了解大连市农村集中式供水工程的卫生状况。方法 2013年,对大连市农村109家农村集中式供水工程进行水质检测,每家于枯水期和丰水期各采集出厂水和末梢水1份。结果该市农村地区供水方式以分散式供水为主,抽检的436份水样,总合格率为21.56%;枯水期和丰水期水样合格率分别为24.32%和18.80%,出厂水和末梢水水样合格率分别为19.72%和23.40%。微生物和硝酸盐超标较严重。结论大连市农村集中式供水工程水质合格率低,饮用水安全存在一定的隐患。

[Objective]To understand the health status of rural centralized water supply project of Dalian. [Methods]A total of109 rural centralized water supply projects of Dalian were detected in 2013,finished water and peripheral water were collected in dry season and wet season. [Results]The decentralized water supply was the main water supply mode in rural area of Dalian.Among 436 detected water samples,the total qualified rate was 21. 56%,the qualified rates in dry season and wet season were24. 32% and 18. 80% respectively,and the qualified rates of finished water and peripheral water were 19. 72% and 23. 40% respectively. The microorganism and nitrate exceeded the standard seriously. [Conclusion]The qualified rate of water quality of rural centralized water supply projects is lower,there is a hidden trouble of drinking water safety.