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目的了解三都县农村集中式供水点水源卫生现状,为制定水源保护措施提供依据。方法于2008—2012年对三都县52个城乡集中式供水点分别采集其枯水期和丰水期的出厂水和末梢水水样进行检验、评价。结果累计采集枯水期出厂水和未梢水各77份,符合国家生活饮用水标准的各6份,合格率均为7.79%;累计采集丰水期出厂水和未梢水各73份,符合国家生活饮用水标准的各5份,合格率均为6.85%。县城、乡镇和农村水质符合Ⅰ和Ⅱ级水质的总合格率分别为100%、86.67%和84.95%,泉水、溪水、库水、河水符合Ⅰ和Ⅱ级水质的总合格率分别为95.45%、88.02%、83.33%、72.58%。结论该县农村集中式供水水质存在一定问题,应根据影响农村集中式供水点水质合格率的主要因素,加强农村集中式供水的水源防护、卫生管理和水质消毒。
Objective To understand the status quo of sanitation in centralized water supply point of rural areas in Sandu County, and provide the basis for formulating water source protection measures. Methods From 2008 to 2012, 52 water samples from urban and rural areas in Sandu County were collected for water samples of the factory water and the peripheral water in dry season and wet season respectively for testing and evaluation. Results A total of 77 dry and unsweetened water samples were collected during the dry season, which met the requirements of the national standard for drinking water. The passing rates were both 7.79%. A total of 73 samples of factory water and unsweetened water were collected during the dry season, Five drinking water standards, the passing rate of 6.85%. The total qualified rates of water quality of Grade I and Grade II in county, township and rural areas were 100%, 86.67% and 84.95% respectively. The total qualified rates of spring water, stream water, reservoir water and river water meeting grade I and grade II were 95.45% 88.02%, 83.33%, 72.58%. Conclusion There are some problems in the centralized water quality of rural areas in this county. Based on the main factors affecting the qualified rate of water quality in rural centralized water supply points, the water source protection, sanitation management and water quality disinfection of rural centralized water supply should be strengthened.