2020年某铁路辖区生活饮用水水质监测结果分析  

Analysis of drinking water quality in Wuhan railway area in 2020

作　　者：李微微[1] 朱玉娇[2] 田芳琼 LI Wei-wei;ZHU Yu-jiao;TIAN Fang-qiong(Agency for Public Health Inspection,Wuhan Railway Bureau,Wuhan,Hubei 430071,China;不详)

机构地区：[1]武汉铁路局卫生监督所,湖北武汉430071 [2]武汉铁路局武汉疾病预防控制所

出　　处：《中国国境卫生检疫杂志》2022年第1期57-59,共3页Chinese Journal of Frontier Health and Quarantine

摘　　要：目的 了解武汉铁路辖区生活饮用水水质卫生状况,为保证饮水安全提供科学依据。方法 按照GB/T 5750-2006《生活饮用水标准检验方法》对2020年武汉铁路辖区列车水箱水、股道水、末梢水、水井水、出厂水和水源水的水质监测结果进行评价,比较不同类型饮用水的水质卫生状况。结果 2020年武汉铁路辖区列车水箱水、股道水、末梢水、水井水、出厂水、水源水合格率分别为80.56%、84.78%、67.80%、35.00%、33.33%和20.00%,列车水箱水和股道水合格率无差别(χ^(2)=0.255,P>0.05),二者与末梢水、水井水之间差异有统计学意义(χ^(2)=18.699,P<0.05)。列车水箱水、股道水和末梢水主要不合格项目是微生物指标,以总大肠菌群超标最为严重;水井水主要不合格项目是硝酸盐、游离余氯和浑浊度;出厂水主要不合格项目为浑浊度、汞、砷;水源水主要不合格项目是浑浊度、色度等。不同铁路地区水质合格率差异有统计学意义(χ^(2)=17.804,P<0.05)。结论 武汉铁路辖区的水质整体卫生状况有待改善,部分管网末梢水和水井水水质卫生状况较差,铁路水厂出厂水不合格现象较为严重。应加强出厂水及相应供水区域管网末梢水、分散式供水的水质监测和卫生监督管理。Objective To understand the drinking water quality in Wuhan Railway area and to provide a scientific basis for ensuring the safety of drinking water quality. Methods According to the national standard GB/T 5750-2006 "Test Methods for Drinking Water",the water quality of passenger train water supply,railway station water supply,tap water,well water,finished water and source water in Wuhan Railway area in 2020 were inspected and analyzed. Results In 2020,the qualified rate of passenger train water supply,railway station water supply,tap water,well water,finished water and source water in Wuhan Railway area was 80.56%,84.78%,67.80%,35.00%,33.33%and 20.00%,respectively. There was no statistical difference between the qualified rates of passenger train water supply and railway station water supply (χ^(2)=0.255,P>0.05),but they were higher than those of tap water and well water,the differences were statistically significant (χ^(2)=18.699,P<0.05).The main unqualified items of three types of tap water were microbiological indicators,especially total coliform group. The well water’s main unqualified indices were Nitrate,free residual chlorine and turbidity,the finished water were tubidity,mercury and arsenic,the source water were turbidity and color. The qualified rate of water quality in different railway regions was statistically different(χ^(2)=17.804,P<0.05). Conclusion The quality of drinking water in Wuhan Railway area should be strengthened.The drinking water quality in some distribution networks and wells were poor. Most of finished water samples were not qualified.Monitoring and sanitation management of finished water and well water should be strengthened.

关 键 词：饮用水 水质 卫生监督 

分 类 号：R123.1[医药卫生—环境卫生学]