上海市闵行区2012年学生饮用水微生物污染状况分析  

Microbial Contamination in Drinking Water Serving for Students in Minhang District,Shanghai,2012

作　　者：宫志敏[1] 应圣洁[1] 何丹丹[1] 苏华林[1] 张鑫毅[1] 赵乾魁[1] 刘继倩[1] 

机构地区：[1]闵行区疾病预防控制中心环境卫生科,上海201100

出　　处：《环境与职业医学》2013年第12期924-927,共4页Journal of Environmental and Occupational Medicine

摘　　要：[目的]了解闵行区学生饮用水的微生物污染状况,探讨学生饮用水管理措施。[方法]按照分层随机抽样法,抽取闵行区内36所学校的学生饮用水水样和供水容器水龙头环节样品各128件开展检测,并对学校饮用水管理现状开展调查。[结果]该区学校供应的学生饮用水以桶装水为主(199/353,56.37%),学生饮用水细菌总数合格率仅为53.91%,最大检出值为4480cfu/mL。水龙头环节细菌总数合格率仅为47.66%,最大检出值为6000cfu/mL。1个月内开展过消毒的供水容器水龙头环节样品细菌总数合格率优于清洗时间超过1个月的饮水机龙头(χ2=5.29,P<0.05)。幼儿园饮水机环节合格率明显优于中小学校(χ2=6.18,P<0.05),但饮用水合格率却远不如中小学(χ2=60.27,P<0.05)。[结论]闵行区内学校供应的学生饮用水污染严重,应加强学校饮水微生物污染的监控管理。[ Objective ] To investigate the microbial contamination situation in drinking water serving for students in Minhang District of Shanghai, and explore appropriate measures of drinking water hygiene management. [ Methods ] A total of 128 drinking water samples and 128 water tap wipe samples of water dispensers were collected from 36 schools in Minhang District of Shanghai by stratified random sampling to investigate the management of school drinking water. [ Results ] Of the 353 primary and secondary schools in Minhang District, 199 schools （56.37%） provided barreled water. The qualification rate of total bacterial count （TBC） in the school drinking water samples was only 53.91%, and the maximum value was 4480cfu/mL; the qualification rate of TBC for the water tap wipe samples were 47.66%, and the maximum value was 6000cfu/mL. The water taps of water dispensers showing disinfection records in the latest month reported a significantly higher qualification rate of TBC than those none （2＂2=5.29, P 〈 0.05）. Compared with the samples from the primary and secondary schools, the qualification rate of TBC in the samples from the water taps in kindergartens was significantly higher （X2=6.18, P 〈 0.05）, while that in the drinking water samples was significantly lower （X2=60.27, P〈0.05）. [ Conclusion ] The findings indicate a serious microbial pollution issue in the drinking water serving schools of Minhang District, Shanghai. Monitoring and management of microbial contamination in school drinking water should be strengthened.

关 键 词：学校 饮用水 微生物 桶装水 

分 类 号：R123[医药卫生—环境卫生学]