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目的通过对农村生活饮用水的监测,完善农村饮用水水质卫生监测体系,为预防控制介水传染病和应对饮用水公共卫生事件提供科学依据。方法对2008—2011年临翔区辖内所有的农村集中式饮水安全工程水质监测报表进行统计分析。结果 2008—2011年共检测临翔区辖内农村饮水安全工程104个监测点416份水样,饮用水水质平均总合格率为93.34%(7 318/7 840),各年合格率依次为91.72%(1 684/1 836)、93.98%(1 857/1 976)、92.66%(1 831/1 976)、94.83%(1 946/2 052),4年合格率比较差异有统计学意义(P<0.01);感官性状和一般化学指标、毒理学指标、微生物学指标3类项目的合格率分别为95.93%(5 140/5 358)、100.00%(1 248/1 248)、75.36%(930/1 234),三者间比较差异有统计学意义(P<0.01),以微生物学指标合格率最低。结论临翔区农村集中式生活饮用水微生物指标超标严重,存在生活饮用水安全隐患,应加强饮用水的消毒,划定水源保护区,及时发现和消除污染隐患。
Objective To monitor the drinking water in rural areas and improve the sanitary drinking water quality monitoring system in rural areas to provide a scientific basis for the prevention and control of waterborne infectious diseases and public health emergencies. Methods Statistical analysis of all rural centralized drinking water safety project water quality monitoring reports in Linxiang Prefecture from 2008 to 2011 was conducted. Results A total of 416 water samples were collected from 104 monitoring points of rural drinking water safety projects in Linxiang Prefecture during 2008-2011. The average drinking water quality was 93.34% (7 318/7 840), with passing rates of 91.72 The percentages of passing rate in four years were statistically significant (P <0.05). The percentages of pass in four years were statistically significant (P <0.01) P <0.01). The pass rates of sensory traits and general chemical, toxicological and microbiological indexes were 95.93% (5 140/5 358), 100.00% (1 248/1 248) and 75.36% 930/1 234). The differences among the three groups were statistically significant (P <0.01), with the lowest passing rate of microbiological indexes. Conclusions The indicators of microbial concentration of rural centralized drinking water in Linxiang district are exceedingly serious. There are potential safety hazards of drinking water. Drinking water disinfection should be strengthened. Water protection zones should be delineated to identify and eliminate potential pollution problems in time.