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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 in Dalian. Methods In 2013, 109 rural centralized water supply projects in rural areas of Dalian were tested for water quality, each of which collected 1 factory water and peripheral water in dry season and wet season. Results In rural areas, the main water supply was distributed water supply. The sampling rate of 436 water samples was 21.56%. The qualified rates of water samples during dry season and wet season were 24.32% and 18.80% respectively. The ex-works and peripheral water The passing rate of water samples were 19.72% and 23.40% respectively. Microbiological and nitrate exceeded the more serious. Conclusion The qualified rate of water quality of rural centralized water supply project in Dalian is low, and the safety of drinking water has some hidden dangers.