某铁路局高铁车站二次供水卫生现状调查与分析  

Investigation And Analysis on Hygienic Current Situation of Secondary Water Supply in A Stations of High Speed Railway Stations

作　　者：侯霄煜[1] HOU XiaoYu(Jinan Railway Center For Disease Control And Prevention, Jinan 250001, Shandong Province China.)

机构地区：[1]济南铁路疾病预防控制中心,济南250001

出　　处：《预防医学情报杂志》2017年第4期326-330,共5页Journal of Preventive Medicine Information

基　　金：济南铁路局科技研究开发项目(2013Z15)

摘　　要：目的了解某铁路局高铁车站二次供水卫生现状,为进一步做好卫生管理工作提供依据。方法根据GB/T5750-2006《生活饮用水标准检验方法》分别于2015-2016年度不同时期采集某铁路局高铁车站二次供水进行检测,依据GB 5749-2006《生活饮用水卫生标准》对检测结果进行评价,使用SPSS19.0数据统计软件对结果进行统计分析。结果2015-2016年度共检测301份水样,合格274份,合格率为91.03%,枯水期合格率高于丰水期(P<0.05)。与丰水期相比,枯水期总硬度(以Ca CO3计)、氯化物、硫酸盐、菌落总数、浑浊度(散射浑浊度单位)、溶解性总固体、耗氧量(CODMn法,以O2计)、硝酸盐(以N计)检测值较低,氯气及游离氯制剂(游离氯)检测值较高,其中前5项指标与氯气及游离氯制剂(游离氯)合格率较高(P<0.05)。各指标间存在一定的相关性。氯气及游离氯制剂(游离氯)检测值在0.02~0.1mg/L时,浑浊度(散射浑浊度单位)与菌落总数为正相关(P<0.05),氯气及游离氯制剂(游离氯)检测值超过0.1 mg/L时相关系数无统计学意义。结论丰水期二次供水水质合格率相对较低。相关部门需进一步加大丰水期饮用水质处理,以改善水质品质,并增加水质检测与监管检测频率,保障饮水安全。Objective To understand the hygienic condition of secondary water supply for high speed railway sta- tions, so as to provide basis for the sanitation management. Methods The secondary water supplied samples were collected, detected and estimated by GB/T 5750 -2006 standard examination methods for drinking water and GB 5749 - 2006 drinking water health standards in different period in a stations of railway passenger - dedi- cated lines between 2015 and 2016, the detection results were evaluated, and statistical analysis was made on the results with SPSS 19.0. Results The 301 water samples were detected between 2015 and 2016, the quali- fied rate was 83.39% （251/301） , The qualification rate of water samples from secondary water supply in wet season was worse than that in dry season （ P 〈 0. 05 ）. The detection values of total hardness, chloride, sul- phate, total bacteria counts, coliform bacteria, turbidity, total dissolved solids, oxygen consumption, nitrate in dry season were lower than those in wet season. Of these indicators, the qualified rates of the first 5 indexes and free chlorine in the dry season were higher than those in the wet season. There was correlativity between those indexes. The correlati the total bacteria counts was on between the turbidity and positive when the content of free chlorine between 0.02 and 0. 1 mg/L （ P 〈 0.05 ） and there was no significant correlation when the content of free chlorine was over than 0. 1 mg/L. Conclusion The qualified rate of the secondary water supply in the wet season was relatively low. The treatment and the frequency detection of the secondary water supply in the wet season are needed to be further enhanced by the relevant departments to improve the water quality, and the frequency of water quality testing and monitoring are needed to be increased to ensure the hygienic safety of drinking water.

关 键 词：高铁车站 二次供水 枯水期 丰水期 调查 统计分析 

分 类 号：R123.5[医药卫生—环境卫生学]