对某市生活饮用水微生物指标的监测分析与风险评估

第6卷第7期食品安全质量检测学报Vol.6No.72015年7月JournalofFoodSafetyandQualityJul.,2015*通讯作者:黄登宇,副教授,主要研究方向为食品卫生检测。E-mail:Huangdy1110@126.com*Correspondingauthor:HUANGDeng-Yu,AssociateProfessor,ShanxiUniversity&ShanxiFoodAndDrugAdministration,No.85,LongchengAvenue,XiaodianDistrict,Taiyuan030006,China.E-mail:Huangdy1110@126.com对某市生活饮用水微生物指标的监测分析与风险评估孙元媛1,2,李亚楠1,2,宋翔1,2,黄登宇1,3*(1.山西大学生命科学学院,太原030006;2.山西大学食品药品快速检测中心,太原030006;3.山西省食品药品监督管理局,太原030006)摘要:目的目的通过对某市2014年生活饮用水中微生物指标的监测分析与风险评估,了解该市水质安全状况,便于水质监管部门进行预防控制。方法方法在该市的9个监测点随机抽取生活饮用水样本676个,采用国标方法对菌落总数、总大肠菌群、耐热大肠菌群、大肠埃希氏菌4个微生物指标进行检测分析,并采用多维灰聚类方法对不合格率最高的监测点7#的不合格样本进行风险评估。结果结果该市生活饮用水水样的总不合格率为55.03%,菌落总数和总大肠菌群是导致不合格的主要原因。监测点7#的不合格样本中,低风险类型占79%,中风险类型占16%,高风险类型占5%。结论结论该市生活饮用水存在发生肠道传染病的风险,需要采取措施进行改进。关键词关键词:生活饮用水;微生物;多维灰聚类评估;水质监测分析;风险评估AnalysisandriskassessmentofmicroorganismsindrinkingwaterinacityofChinaSUNYuan-Yuan1,2,LIYa-Nan1,2,SONGXiang1,2,HUANGDeng-Yu1,3*(1.CollegeofLifeScience,ShanxiUniversity,Taiyuan030006,China;2.TheFoodAndDrugSafetyRapidInspectionCenter,ShanxiUniversity,Taiyuan030006,China;3.ShanxiFoodAndDrugAdministration,Taiyuan030006,China)ABSTRACT:ObjectiveToanalyzeandassesstheriskofmicroorganismsindrinkingwaterinordertopreventandcontrolthedrinkingwaterpollution.MethodsAtotalof676samplesofwaterwereselectedfrom9monitoringstationsofacityincentralChinain2014.Themicrobialindexesweredeterminedaccordingtothenationalstandards.Becauseofthelowestqualificationrate,the7thmonitoringstation’sunqualifiedsampleswereanalyzedbythemultidimensionalgreyclusterassessmentmethod.ResultsThefractiondefectiveofmicroorganismstestresultsofdrinkingwaterwas55.03%inthecity.Themaininfluencingfactorsweretheaerobicplatecountandthecoliformgroups.Inthe7thmonitoringstation,thelow-risktypeaccountedfor79%,themiddle-risktypewas16%andthehigh-risktypewasonly5%.ConclusionTherearesomesecurityrisksexistedinthecity,andtherelatedsupervisiondepartmentshouldtakemeasurestoimprovethewaterquality.KEYWORDS:drinkingwater;microorganism;multidimensionalgreyclusterassessment;waterqua