2018—2022年湖北省饮用水中微生物监测结果分析  

Analysis of microorganisms detected in drinking water in Hubei province,China,2018—2022

作　　者：王婧 崔秀青 范传刚[1] 杨世杰 李翔[1] 谢曙光[1] 何祖安[1] WANG Jing;CUI Xiu-qing;FAN Chuan-gang;YANG Shi-jie;LI Xiang;XIE Shu-guang;HE Zu-an(Hubei Center for Disease Control and Prevention,Wuhan 430079,China)

机构地区：[1]湖北省疾病预防控制中心,武汉430079

出　　处：《环境卫生学杂志》2025年第2期112-117,共6页JOURNAL OF ENVIRONMENTAL HYGIENE

摘　　要：目的了解湖北省饮用水中微生物污染现状,探索影响微生物指标的相关因素,为下一步饮用水卫生防治和评估提供基础数据。方法本研究收集并分析了2018—2022年湖北省城乡饮用水监测项目中水样微生物指标(包括总大肠菌群、耐热大肠菌群、大肠埃希氏菌和菌落总数)相关监测结果,并采用多因素Logistic回归对微生物指标达标率的影响因素进行了分析。结果2018—2022年,湖北省累计监测33384份集中式供水工程水样,菌落总数达标率为91.04%,总大肠菌群达标率为90.11%,耐热大肠菌群/大肠埃希氏菌达标率为94.41%,微生物指标平均达标率为85.68%,呈现逐年上升趋势(χ^(2)趋势=264.83,P<0.001)。多因素Logistic回归结果显示,农村水(OR=10.31,95%CI:9.02~11.78)、不消毒(OR=2.37,95%CI:1.96~2.87)、地表水(OR=1.20,95%CI:1.09~1.32)、末梢水(OR=1.18,95%CI:1.10~1.26)、丰水期(OR=1.11,95%CI:1.04~1.18)均是影响水样微生物指标超标的危险因素。结论湖北省饮用水微生物指标达标率在五年间有一定改善,但耐热大肠菌群/大肠埃希氏菌等粪便污染指示菌仍有检出,今后应进一步关注农村地区饮用水微生物污染,加强饮用水消毒管理。Objective To explore the current status of microbial contamination in drinking water in Hubei province,China,investigate the factors affecting microbial indicators,and provide basic data for the next step of drinking water contamination prevention and assessment.Methods This study analyzed the mornitoring results of microbial indicators(including total coliforms,thermotolerant coliforms,Escherichia coli,and total colony)in the urban and rural drinking water monitoring projects in Hubei province from 2018 to 2022.Multivariate logistic regression was used to analyze the factors influencing the qualified rate of microbial indicators.Results From 2018 to 2022,the qualified rates of microbial indicators in Hubei Province increased year by year(χ^(2)=260.84,P<0.001).The qualified rates of urban drinking water were significantly higher than those of rural drinking water(χ^(2)=2012.57,P<0.001).The qualified rates of disinfected drinking water were significantly higher than those of drinking water without disinfection(χ^(2)=1196.70,P<0.001).From 2018 to 2022,33384 water samples from centralized water supply projects in Hubei province were monitored,with the qualified rate of total count being 91.04%,the qualified rate of total coliforms being 90.11%,the qualified rate of thermotolerant coliforms/Escherichia coli being 94.41%,and the average qualified rate of microbial indicators being 85.68%,increasing year by year(χ^(2) trend=264.83,P<0.001).Multivariate logistic regression showed that rural drinking water(odds ratio[OR]=10.31,95%confidence interval[CI]:9.02-11.78),the absence of disinfection(OR=2.37,95%CI:1.96-2.87),surface water(OR=1.20,95%CI:1.09-1.32),tap water(OR=1.18,95%CI:1.10-1.26),and flood season(OR=1.11,95%CI:1.04-1.18)were risk factors affecting the unqualification of microbial indicators in drinking water samples.Conclusion The qualified rates of microbial indicators of drinking water in Hubei province have been improved during the five years.However,fecal contamination indicators,such as thermotolerant

关 键 词：饮用水 微生物 影响因素 

分 类 号：R123[医药卫生—环境卫生学]