2007～2009年枣庄市农村分散式供水水质监测结果分析

[目的]掌握枣庄市农村分散式生活饮用水状况,为政府有关部门在提高饮水卫生安全的决策时提供科学依据。[方法]对2007～2009年枣庄市部分农村分散式供水水质检测资料进行分析。[结果]2007～2009年合计检测水样288份,合格的96份,合格率为33.33%。检测合格率2007～2009年分别为29.17%、33.33%、37.50%（P〉0.05）;枯水期为39.58%,丰水期为27.08%（P〈0.05）;滕州市为47.92%,薛城区为41.67%,台儿庄区为20.83%,市中区为35.42%,山亭区为29.17%,峄城区为25.00%（P〈0.05）;感官指标为82.64%,一般化学指标为45.83%,毒理学指标为78.13%,细菌学指标为31.60%（P〈0.01）。检测的288份水样中,肉眼可见物、浑浊度、总硬度、硫酸盐、溶解性总固体、硝酸盐、细菌总数、大肠菌群分别超标39、11、138、27、19、63、154、112份。[结论]枣庄市农村分散式供水水质合格率较低,不合格水样主要是微生物超标。

Analysis on Quality of Decentralized Water Supply Surveillance in Rural Areas of Zaozhuang City from 2007 to 2009

[Objective] To know the condition of drinking water in rural areas of Zaozhuang city and provide scientific basis for decision-making by relevant government departments in improving the health and safety of drinking water.[Methods]Data analysis was made on the quality of decentralized water supply in rural areas of Zaozhuang city,2007-2009.[Results]288 water samples were tested,96 of which were qualified,accounting for 33.33%.The qualified rate of 2007-2009 was 290.17%,33.33%,37.50% respectively（P0.05）.The rate in dry season was 39.58% while in wet season was 29.17%（P0.05）.The qualified rate was 47.92% in Tengzhou city,41.67% in Xuecheng district,20.83% in Taierzhuang district,35.42% in Shizhong district,29.17% in Shanting district,25.00% in Yicheng district（P0.05）.The organoleptic indicator was 82.64%;the general chemical index was 45.83%;the toxicology index was 78.13%;the bacteriology index was 31.60%（P0.01）.In the 288 samples,visible substance,turbidity,total hardness,sulphate,total dissolved solids,nitrate,total number of bacteria,coli group were 39,11,138,27,19,63,154,112 respectively.[Conclusion]The decentralized water supply in rural areas of Zaozhuang is low in qualified rate.The main reason is the microbial quantity exceeding the nation＇s standards.