沈阳铁路地区生活饮用水微生物指标检测结果分析

Results Analysis on Microbial Detection of Drinking Water in Shenyang Railway Area

目的了解沈阳铁路地区各车站、站段生活饮用水的卫生情况,保证铁路职工饮水安全。方法对338件水样进行微生物指标的检验。结果总合格率为90.8%。其中菌落总数的合格率为90.8%,总大肠菌群和耐热大肠菌群合格率为93.5%。1、4季度水质好于2、3季度。各类水样合格率经统计学处理,二次加压水与出厂水相比较,χ2=5.82,P<0.05,差异有统计学意义。出厂水与分散式供水比较,χ2=5.57,P<0.05,差异有统计学意义。结论该地区生活饮用水的水质尤其是分散式供水污染状况较为严重,铁路一线职工的饮水安全亟待解决。

[Objective]To learn the sanitary condition of drinking water in all stations and depots of Shenyang railway area,so as to ensure the drinking water safety of railway workers.[Methods]The microbial detection was conducted in 338 water samples.[Results]The total qualified rate was 90.8%,the qualified rate of total bacteria counts was 90.8%,and that of total coliform group and thermotolerant coliform bacteria was 93.5%.The quality of drinking water in first and fourth quarter was better than that in second and third quarter.There was significant difference in qualified rates of all water samples between the secondary pressure water and finished water（χ2=5.82,P0.05）,and the difference between the finished water and dispersed supply water was significant（χ2=5.57,P0.05）.[Conclusion]The pollution of drinking water in this area is severe,especially dispersed water supply.The drinking water safety of railway workers needs to be solved urgently.