论文部分内容阅读
目的了解肃州区农村生活饮用水水质卫生状况,为加强农村饮水安全工程建设和管理提供科学依据。方法对2012年-2014年全区农村饮水安全工程供水点枯水期和丰水期水样进行采集检测并统计分析。结果 3年共采集水样268份,总合格率为67.5%;2014年水样检测合格率最高,为82.3%,与2012年、2013年合格率相比差异具有统计学意义(χ2=17.72、12.74,P<0.01);丰水期水质合格率高于枯水期,差异无统计学意义(χ2=0.43,P>0.05);出厂水与末梢水水样合格率基本一致。每份水样共检测31项指标,不合格指标7项,其中总硬度、硫酸盐、总大肠菌群为主要不合格指标,合格率均<90%。结论肃州区农村饮用水水质合格率较低,2014年经全面更新消毒净化设施后,水质合格率显著提高。今后应根据水质的硬度和微生物超标状况有针对性地提高农村饮水安全工程建设项目质量,改进工程运行管理模式,确保工程长期发挥效益,保障居民饮水安全。
Objective To understand the health status of rural drinking water in rural areas of Suzhou and provide scientific evidence for strengthening the construction and management of rural drinking water safety projects. Methods Collection, detection and statistical analysis of water samples in dry season and wet season in water supply points of rural drinking water safety project in 2012-2014 were conducted. Results A total of 268 water samples were collected in 3 years, with a total pass rate of 67.5%. The highest pass rate of water samples in 2014 was 82.3%, which was significantly different from the pass rates in 2012 and 2013 (χ2 = 17.72, 12.74, P <0.01). The qualified rate of water quality in wet season was higher than that in dry season, the difference was not statistically significant (χ2 = 0.43, P> 0.05). A total of 31 indicators of each water samples were tested, 7 failed indicators, including total hardness, sulfate, total coliform bacteria as the main unqualified indicators, the passing rate of <90%. Conclusion The qualified rate of rural drinking water quality in Suzhou District is relatively low. After passing through the renovation of disinfection and purification facilities in 2014, the qualified rate of water quality is significantly increased. In the future, we should improve the quality of rural drinking water safety project construction according to the hardness of water and the excessive microbial status, improve the project operation and management mode, ensure the long-term benefits of the project and ensure the safety of drinking water for residents.