高速动车组供水卫生状况及影响因素调查  

Sanitation situation of water supply in high-speed electric multiple units and its influencing factors

作　　者：陶明锐 兰天翔[1] 郑成龙[1] 

机构地区：[1]济南铁路疾病预防控制中心,山东济南250001

出　　处：《实用预防医学》2016年第3期302-305,共4页Practical Preventive Medicine

基　　金：济南铁路局科研基金资助(编号:2013Z15)

摘　　要：目的掌握高速动车组供水卫生状况和影响因素,为供水监管提供依据。方法分别对供水各个环节进行水质采样和检测,针对可能影响因素采取控制措施,并分析水质变化情况。结果高速动车组待乘组水箱、运营组水箱和车站上水管末梢水合格率分别为91.67%、67.64%、92.59%,给水所出厂水和市政自来水检测合格率分别为95.45%和100%;待乘组水箱水质合格率高于运营组(P<0.01);各采样点水质在枯水期差异有统计学意义(P<0.01),一般化学指标、微生物指标和消毒剂指标检测合格率不同(P<0.05)。各采样点水质采取措施前检测合格率差异有统计学意义(P<0.01),采取措施后检测合格率差异无统计学意义(P>0.05),待乘组和运营组水箱水质在采取措施后检测合格率均高于采取措施前(P<0.05)。结论高速动车组供水合格率较高,供水污染可以通过关键环节进行控制。Objective To investigate the sanitation condition of water supply in high- speed electric multiple units and its influencing factors so as to provide a basis for surveillance and management of water supply. Methods Water samples in each link of water supply were collected and tested,and targeted countermeasures were taken based on the possible influencing factors.And the changing trend of the water quality was analyzed. Results The qualified rates of water from tanks of the management group and the operation group and from taps of the passing stations were 91. 67%,67. 64% and 92. 59% respectively. The qualified rates of water from water supply factories and municipal water supply system were 95. 45% and 100% respectively. The qualified rate of water from tanks of the management group was higher than that of the operation group（ P〈0. 01）. There were statistically significant differences in the water quality among different sampling stations during the dry season（ P〈0. 01）; moreover,the qualified rates of general chemical indicators,microbial indicators and disinfectant indexes were different（ P〉0. 05）. There were statistically significant differences in the qualified rate of water among different water sampling stations before the countermeasures were taken（ P〈0. 01）,but no statistically significant difference was found after the countermeasures were taken（ P〈0. 05）. The qualified rates of water from tanks in the management group and the operation group after the countermeasures were taken were both higher than those before（ P〈0. 05）. Conclusions The qualified rates of water supply in high- speed electric multiple units are high,and the water pollution can be controlled in the key points.

关 键 词：高速动车组 生活饮用水 末梢水 影响因素 

分 类 号：R123[医药卫生—环境卫生学]