玉溪市生活饮用水微生物污染状况分析

Analysis of Microbial Contamination in the Drinking Water of Yuxi

目的:了解玉溪市2007年至2008年生活饮用水微生物污染状况。方法:按照国家卫生部2007年7月1日实施的《生活饮用水标准检验方法》进行检验。按《生活饮用水卫生标准GB5749—2006》进行评价。结果:玉溪市2007年至2008年生活饮用水检验结果合格率差异有显著性,其中微生物指标总合格率为87.73%,市政供水除与地表水细菌总数和总大肠菌群污染差别有显著性外,与山泉水、深井水均无显著性差异。结论:玉溪市生活饮用水仍存在问题,尤其地表水微生物污染严重,必需通过净化消毒处理,才能饮用。

Objective： To gain insights into the microbial contamination in the drinking water in the city of Yuxi from 2007 to 2008. Method： Testing the water according to the ＂Living Standards for Drinking Water Tests＂ issued by the National Ministry of Health on July 1, 2007, and making evaluation according to the ＂Drinking Water Health Standards GB5749-2006＂. Result： In the testing results, there are remarkable differences in percent of pass from 2007 to 2008, which implies the overall pass rate of microbial indicators is 87.73%, and regardless of the total number of bacteria and total coliform contamination in the municipal water and surface water, there was no significant difference between outside spring water and deep water. Conclusion： There exist certain problems in the drinking water of Yuxi, especially the micro-organisms that cause serious pollution of surface water, which must be dealt with through the purification and disinfection in order to make it drinkable.