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目的了解广西阳朔县农村饮用水水质状况,为进一步改善水质质量,控制水源性疾病传播提供科学依据。方法采集2008—2011年阳朔县农村生活饮用水,按照国家标准进行采样、检测和评价。结果 2008—2011年共检测水样320份,合格品129份,合格率40.31%;各年度合格率分别为32.50%、38.75%、43.75%、46.25%,呈逐年上升趋势。不合格项目主要为浑浊度、肉眼可见物、菌落总数、总大肠菌群、耐热大肠菌群。枯水期与丰水期合格率差异有统计学意义(χ2=19.75,P<0.01)。出厂水和末梢水超标项目之间差异无统计学意义(P>0.05)。结论阳朔县农村生活饮用水被微生物污染严重,应加强对农村饮用水进行有效的净化消毒措施,以确保农村居民饮水安全。
Objective To understand the quality of drinking water in rural areas in Yangshuo County, Guangxi Province, and to provide a scientific basis for further improving water quality and controlling the spread of waterborne diseases. Methods Drinking water in rural areas of Yangshuo County from 2008 to 2011 was sampled, tested and evaluated in accordance with national standards. Results A total of 320 water samples were collected from 2008 to 2011, and 129 were qualified products with a pass rate of 40.31%. The pass rates in each year were 32.50%, 38.75%, 43.75% and 46.25% respectively, showing an increasing trend year by year. Unqualified items are mainly turbidity, the naked eye can be seen, the total number of colonies, total coliform bacteria, heat-resistant coliform bacteria. There was a significant difference in pass rates between dry season and wet season (χ2 = 19.75, P <0.01). There was no significant difference between the factory water and the peripheral water exceeding the standard (P> 0.05). Conclusions In Yangshuo County, drinking water in rural areas is seriously polluted by microorganisms. Effective disinfection measures should be taken to ensure that drinking water is safe for rural residents.