农村部分集中式供水卫生状况调查分析

目的了解安徽省农村饮水水质的卫生状况与动态变化，为制定《农村集中式供水卫生要求》提供依据。方法采用现场卫生学词查、水质采样检验方法。结果被词查701家集中式供水水源监测点存在不同程度的污染源。2002年最低，占调查总数的12．08％；2003年最高，占35．29％。3年集中式供水合格现状，地下水以二级水为标准总合格率63．47％、三级水为79．80％。地表水以二级水为标准总合格率46．88％、三级水为65．26％。3年集中式供水水质单项指标检测中微生物指标合格率较低，感观指标和理化指标合格率均在90％以上。结论安徽农村集中式供水存在水源污染，水质不合格主要原因为微生物污染。需加强对集中式供水水源防护、水质处理和消毒工作。

Sanitary Status on Rural Tap Water Supply

Objective To study the sanitary situation ,problems and changes of tap water supply system in rural so as to provide evidences for constituting sanitary standard for rural drinking water.Methods The methods of field of hygiene investigation and water sample examination were adopted.Results Investigated 701 tap waters had different degrees of pollution,the lowest accounted for 12.08% of total tap waters in 2002,the highest accounted for 35.29% in 2003.In three years,the qualification rates of groundwater taken as the second class and the third class water sources were 63.47% and(79.80%),as well as the qualification rates of earth's surface water were 46.88% and 65.26%,the qualification rate of microbiology indexes was low,the qualification rates of inspection with sense organs and the physicochemical indexes were all above 90.00%.Conclusion The water sources of rural tap water are polluted,and main reason causing water quality unqualified is microbe pollution.Water sources need to be strengthened to defend,manage and disinfect.