论文部分内容阅读
目的为近一步了解北京市怀柔区农村饮水水质卫生状况,保证农村饮水安全,提高农村居民的生活质量。方法分层随机抽取60个监测点,每个监测点在丰水期和枯水期各检测1次,每次采集出厂水和末梢水各1件,全年共检测水样240件。结果 2012年农村饮水安全工程集中供水240件,水样合格率为83.8%;枯、丰水期水质的差异有统计学意义(χ2=8.85,P<0.01);微生物学指标中总大肠菌群、耐热大肠菌群不同采样时间合格率差异有统计学意义(χ2=7.47,P<0.01;χ2=7.92,P<0.01);感官性状和一般化学指标以及毒理学指标全部合格。结论 2012年怀柔区农村饮水集中式供水水质总体状况较好,超标项目依旧主要集中在微生物学指标,今后应加大对微生物指标的监测力度以及消毒设备的投资力度,进一步改善农村水质卫生状况,保障农村居民身体健康。
The purpose is to learn more about the health status of rural drinking water in Huairou District of Beijing, ensure the safety of rural drinking water and improve the quality of life of rural residents. Methods Sixty monitoring points were randomly selected and stratified. Each monitoring spot was tested once during the wet and dry periods, one for each of the factory water and the peripheral water, and 240 water samples were collected during the year. Results In 2012, a total of 240 water supply projects were carried out in rural drinking water safety project, with a water passing rate of 83.8%. There was significant difference in water quality between dry season and wet season (χ2 = 8.85, P <0.01); total coliforms (Χ2 = 7.47, P <0.01; χ2 = 7.92, P <0.01). The sensory traits, general chemical indexes and toxicological indexes all passed the test. Conclusion The overall water quality of rural drinking water supply in Huairou District was good in 2012, and the over-standard items were still mainly focused on microbiological indicators. In the future, the monitoring of microbial indicators and the investment of disinfection equipment should be intensified to further improve the sanitary status of rural water quality, Guarantee the health of rural residents.