论文部分内容阅读
[目的]了解青州市农村集中式饮水安全工程的卫生现状,为实施农村饮水安全工程提供依据。[方法]2011年,对青州市农村951处生活饮用水安全工程,每处于枯水期和丰水期各采集出厂水、末梢水1份,进行水质检测。[结果]调查768处水源水,均为地下水,有767处未对水源水进行处理。检测951处生活饮用水安全工程的水样1 690份,水样检测总体合格率为21.18%。水样合格率,出厂水、末梢水为21.24%、21.14%(P>0.05);城市管网延伸工程为40.00%,联村供水工程为15.79%,单村供水工程为20.91%(P<0.05)。硝酸盐、细菌总数、总大肠菌群、耐热大肠菌群超标率分别为20.65%和46.75%、61.36%、55.56%。[结论]青州市农村饮水安全工程水质合格率低,水源受污染严重。
[Objective] To understand the sanitary status of rural centralized drinking water safety project in Qingzhou and provide the basis for implementing rural drinking water safety project. [Method] In 2011, 951 domestic drinking water safety projects in rural area of Qingzhou City were collected, one for each of the factory water and the peripheral water during the dry and wet periods, and the water quality was tested. [Result] The investigation of 768 water sources was groundwater, of which 767 did not deal with water source. A total of 1 690 water samples from 951 drinking water safety projects were tested. The overall pass rate of water samples was 21.18%. The passing rate of water samples was 21.24% and 21.14% respectively (P> 0.05). The extension of urban pipe network was 40.00%, that of Lian Village was 15.79% and that of single village was 20.91% (P <0.05) ). The over-standard rates of nitrate, total bacteria, total coliforms and heat-resistant coliforms were 20.65% and 46.75%, 61.36% and 55.56%, respectively. [Conclusion] The qualified rate of water quality of rural drinking water safety project in Qingzhou is low and the water source is seriously polluted.