高县2005-2008年中小学校生活饮用水监测结果分析

Analysis of Life Drinking Water Surveillance Results of High and Primary School in Gao County from 2005 to 2008

目的了解宜宾市高县学校生活饮用水卫生质量,减少介水传染病的发病率,为保障中小学校生活饮用水卫生安全提供参考依据。方法 2005-2008年,从宜宾市高县辖区的18所中学和23所小学中随机抽取水样151份(中学35份,小学116份),按《生活饮用水标准检验法(GB5750-85)》对样品感官性状指标、一般化学指标、微生物指标进行检测,按《生活饮用水卫生标准(GB5749-85)》进行评价。结果 2005-2008年高县中小学生活饮用水水质总检测指标和感官性状指标合格率差异均无统计学意义(P值均<0.05),呈现先下降后回升的趋势。集中式供水水质合格率为36.76%,分散式供水为18.07%,微生物指标合格率尤其低。结论宜宾市高县中小学生活饮用水存在安全隐患,应加强饮用水监测和防护。

Objective To know about the sanitary of life drinking water in the schools of a county in Yibin City and to provide the basis for the decrease of the incidence of infectious diseases and the insurance of health security for drinking water.Methods 151 water samples were randomly selected from 18 high schools and 23 primary schools of a county in Yibin,monitored by ＂GB 5750-85 Test Method Standard for Drinking Water＂ evaluated by＂ GB5749-85 Hygienic Standard for Drinking Water＂.Results There were no statistical difference between the total test indices and sensory attributes（P0.05）;But statistical difference was found between microbisl index and general chemical index which showed a trend of decreasing then increasing.The pass rate of centralized water supply in schools was 36.76%,school-owned water was 18.07%,the passing rate of microbial indicators was particularly low.Conclusion The drinking water isn＇t healthy of high schools and primary in a county in Yibin.The monitoring and protection of drinking water should be strengthened.