武威铁路辖区饮用水水质监测结果与分析

Analysis of surveillance results of drinking water quality at railway area in Wuwei

目的:了解并掌握武威铁路辖区饮用水卫生状况。为改善饮用水水质提供科学依据。方法:采集2007年-2011年武威铁路辖区生活饮用水共94份,按照GB/T5750-2006《生活饮用水标准检验方法》进行检验。结果:共检测水样94份,合格68份,总合格率为72.3%,不合格项目主要有总大肠菌群、氟化物、硫酸盐、溶解性总固体、氯化物、肉眼可见物和总硬度;集中式供水与分散式供水合格率分别为88.5%和52.4%,两者有显著性差异(χ2=15.12,Ρ<0.01);深井水与贮水井水合格率分别为85.3%和21.1%,两者差异显著(χ2=31.31,Ρ<0.01)。结论:武威铁路辖区生活饮用水水质卫生合格率较低,特别是微生物污染较严重,必须加强饮用水净化和消毒。

Objective：To understand the sanitary status of drinking water in railway area under Wuwei,and provide scientific basis for improving the quality of drinking water.Methods：A total of 94 domestic potable water samples were collected during 2007-2011 at Wuwei railway area and examined according to GB/T 5750-2006.Results：68 samples were qualified,the qualified rate was 72.3%,the unqualified items included total coliform bacteria,fluoride,sulfate,total dissolved solid,chloride,visible property and total hardness,the pass rates for centralized water supply and decentralized water were 88.5% and 52.4%,respectively and there were significant differences between the two（χ2=15.12,Ρ0.01）;the qualified rates for deep water wells and water storage wells were 85.3% and 21.1%,respectively,there was significant difference between them（χ2=31.31,Ρ0.01）.Conclusion：The quality of drinking water in railway area in Wuwei was low,microbial contamination of drinking water was more serious,so,the purification and disinfection of the drinking water should been strengthened.