2017年龙口市农村生活饮用水水质调查

Investigation on quality of rural drinking water in Longkou City in 2017

目的了解龙口市农村集中式供水水质卫生状况,为改善农村饮用水水质提供可靠依据。方法 2017年7—8月,按照GB/T 5750-2006《生活饮用水标准检验方法》对所采集的462份水样进行检测和分析。结果共检测样品462份,合格322份,合格率69.70%;净化设备总体安装率为81.17%,有净化设备水样合格率83.73%,无净化设备水样合格率9.19%,差异有统计学意义(χ~2=185.765,P<0.01);合格率较低的指标主要是硝酸盐、菌落总数、总大肠菌群、耐热大肠菌群和大肠埃希菌,合格率分别为83.77%、84.42%、85.50%、89.18%和95.89%。结论龙口市农村生活饮用水总体卫生状况尚需完善,应推进农村改水建设,配齐饮用水净化设备,规范消毒措施。

[Objective]To understand the quality of drinking water derived from rural centralized water supplies in Longkou City,provide scientific basis to improve the quality of the rural drinking water.[Methods]From July to August in 2017,462 water samples were detected and analyzed in accordance with the Standard test me thod for drinking water(GB/T 5750-2006).[Results]A total of 462 samples were detected,322 were qualified with the qualification rate of 69.70%.The installation rate of water purification equipment was 81.17%.The qualification rate of water samples with purification equipment was 83.73%,while that of water samples without purification equipment,and the difference was statistically significant(χ~2=185.765,P<0.01).The items with lower qualification rate included nitrate,total colony,total coliforms,Thermotolerant coli and Escherichia coli,which the qualification rate was 83.77%,84.42%,85.50%,89.18%and 95.89%,respectively.[Conclusion]The quality of drinking water needs to be improved in the rural areas of Longkou City,by advancing the construction of rural water supply,equipping purification equipment fully,and standardizing procedures of disinfection.