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目的掌握宁洱县“十一五”期间建成的农村饮水安全工程水质卫生状况,为项目选择安全水源及水处理方式预防控制水性疾病的发生提供科学依据。方法按照《云南省“十一五”期间农村已建集中式供水单位水质卫生监测技术方案》进行实施。结果 4年共监测工程62个,枯丰水期各检测水样248个,枯水期合格124个,合格率50.00%;丰水期合格83个,合格率33.47%。浑浊度枯丰水期合格率分别是96.37%和73.39%;大肠菌群和耐热大肠菌群枯丰水期合格率分别是50.00%和33.47%,枯丰水期水质监测中以上指标合格率比较,差异有统计学意义(P<0.01)。砷、氟化物枯丰水期合格率均为100%。结论宁洱农村水质合格率低。微生物指标是影响水质合格率的主要因素,尚未受毒理指标污染。说明此项目工程仅仅解决了农村缺水的问题,未能达到真正卫生学意义上的“安全饮水”的标准。
Objective To understand the status of water and sanitation of rural drinking water safety projects built in Ning’er County during the Eleventh Five-year period and to provide scientific basis for selecting safe water sources and preventing and controlling waterborne diseases by water treatment methods. Methods According to “Yunnan Province” “Eleventh Five-Year” during the rural areas have set up the Chinese-style water quality monitoring program for water supply units “for implementation. Results A total of 62 monitoring projects were carried out in 4 years, 248 samples were tested in dry season, 124 were qualified in dry season, the pass rate was 50.00%; 83 were qualified in wet season, with pass rate of 33.47%. The passing rate of turbidity in dry season was 96.37% and 73.39% respectively. The pass rates of coliform bacteria and heat-resistant coliform bacteria in wet season were 50.00% and 33.47%, respectively. The passing rate of the above indicators in water quality monitoring during dry season The difference was statistically significant (P <0.01). Arsenic, fluoride dry wet water pass rate of 100%. Conclusion Ning’er rural water quality pass rate is low. Microbial indicators is the main factor affecting the passing rate of water quality, not yet contaminated by toxicological indicators. This shows that this project only solves the problem of water shortage in rural areas and fails to meet the standard of ”safe drinking water" in the sense of true hygiene.