摘要
目的:了解三峡库区腹地万州段农村居民饮用水消毒卫生现状,为预防介水疾病提供科学依据。方法:采取回顾性调查方法,对农村居民饮用水消毒指标与微生物指标监测数据进行收集整理和分析。结果:2013-2015年期间三峡库区万州段共监测农村居民饮用水样574件,游离余氯、菌落总数、总大肠菌群、耐热大肠菌群、大肠埃希氏菌合格率分别为69.53%、78.45%、71.21%、70.20%、74.58%,水质消毒质量逐年变好(P<0.01),枯水期与丰水期之间除总大肠菌群外,其它差异均有统计学意义。末梢水游离余氯与各微生物项目合格率之间差异有统计学意义。结论:近年来,三峡库区万州段农村居民饮用水消毒效果总体较好,但末梢水总大肠菌群、耐热大肠菌群合格率相对较低,存在水质二次污染的风险。
Objective To know about the status quo of drinking water disinfection in rural areas of Wanzhou in the hinterland of the Three Gorges Reservoir Region,so as to provide a scientific basis for the prevention of water-borne diseases.Methods Retrospective investigation method was used to collect and analyze the indicators of drinking water disinfection and microbial indicators among rural residents.Results During the period of 2013-2015,in Wanzhou of Three Gorges Reservoir Region 574 samples of rural residents＇ drinking water were monitored.The qualified rates of free chlorine,total bacteria,total coliform,thermotolerant coliform bacteria and Escherichia coli were 69.53%,78.45%,71.21%,70.20%,74.58%,respectively.Water disinfection quality tended to become better year by year（P〈0.01）.There were significant differences in all indicators,except for colibacillus,between the dry season and the wet season.In addition,there was statistically significant difference between the residual chlorine in the peripheral water and the microbial items.Conclusions In recent years,the drinking water disinfection effect in the Wanzhou section of the Three Gorges Reservoir Region becomes generally better,but the qualified rates of the total coliform bacteria and thermotolerant coliform bacteria are relatively low,and there is a risk in the secondary pollution of the water.
作者
罗华
孙志诚
张太敏
胡诗雨
黄双林
LUO Hua SUN Zhi-cheng CHANG Tai-min et al(Wanzhou Center for Disease Control and Prevention , Wanzhou , Chongqing 404000,Chin)
出处
《中国农村卫生事业管理》
2017年第6期664-666,共3页
Chinese Rural Health Service Administration
关键词
三峡库区
农村居民
饮用水质
消毒质量
Three Gorges Reservoir Region
rural resident
drinking water quality
disinfection quality
