2010-2011年安阳县农村生活饮用水现状分析

目的了解安阳县农村生活饮用水安全卫生现状,为政府改善农村饮水水质提供科学依据。方法调查安阳县农村居民饮水方式,依据安阳县农村人口分布,随机抽取6个乡镇,以此6乡镇共有的12处饮水安全工程作为水质调查点,该工程周边随机抽取30处分散式供水作为调查点,每个调查点按照丰水期、枯水期一年采两次样,连续采2 a,水样检测依据《生活饮用水标准检验法(GB/T5750-2006)》、结果评价依据《生活饮用水卫生标准(GB5749-2006)》。结果饮水安全工程监测48份,合格35份,合格率72.92%,分散式样品120份,合格37份,合格率30.83%。不合格项目有氟化物、氯化物、硫酸盐、总硬度、溶解性总固体、菌落总数和总大肠菌群。结论安阳县农村饮水卫生状况较差,农村饮水以分散式供水为主,应进一步加快农村饮水安全工程的建设,完善农村饮水安全工程建后管理,落实饮水安全的各项措施。

Analysis of present status of drinking water in rural areas in Anyang county over 2010-2011

Objective To investigate the safety and sanitation of drinking water in rural areas in Anyang County and provide scientific basis for government agency to improve rural drinking water quality.Methods Based on the investigation of drinking modes of rural residents and in consideration of the distribution of rural population in Anyang County,six towns were selected at random,wherein 12 safe drinking water works and 30 water supply works randomly selected nearby were taken as water quality investigation samples,each of which was sampled twice respectively in high flow period and low flow period every year,continuously for two years.Water samples were inspected in accordance with Standard Examination Methods for Drinking Water(GB5750-2006) and results were evaluated in accordance with Standards for Drinking Water Quality(GB5749-2006).Results Among 48 samples from safe drinking water works,35 samples were determined qualified,the percent of pass was 72.92%;with respect to separate water supply works,37 of 120 samples were determined qualified,the percent of pass was 30.83%.Unqualified items included fluo ride,chloride,sulphate,total hardness,total dissolved solids,total number of bacterial colony and total coli-group.Conclusion Rural drinking water in Anyang County was at a low sanitary level and centered on separate water supply works.Therefore,it is suggested to further expedite the construction of safe drinking water woks in rural areas in Anyang County,perfect their post-management and put into effect all measures for safe drinking water.