PesticideScienceandAdministration2023，44(1)农药研究25%吡唑醚菌酯悬浮剂在蓝莓中的残留行为及膳食风险评估朱卫芳1，黄兰淇2，张颂函2，马琳2，陈建波2，方朝阳3*(1.上海市青浦区农产品质量安全中心，上海2017002;2.上海市农业技术推广服务中心，上海201103;3.上海市松江区新浜镇农业农村服务中心，上海201600)收稿日期:2022－11－4基金项目:上海市科技兴农项目(2020－02－08－00－08－F01456).作者简介:朱卫芳，女，高级农艺师，主要从事农药残留分析及农产品安全监管方面的工作。E－mail:shqpnj@163.com。通讯作者:方朝阳，女，高级农艺师，主要从事农药残留分析及农产品安全监管方面的工作。E－mail:854311404@qq.com。ＲesidueandDietaryExposureandＲiskAssessmentofPyraclostrobinＲesidueinBlueberriesZhuWeifang(ShanghaiQingpuDistrictAgriculturalProductQualityandSafetyCenter，Shanghai201700，China)HuangLanqi，ZhangSonghan，MaLin，ChenJianbo(ShanghaiAgriculturalTechnologyExten-sionandServiceCenter，Shanghai201103，China)FangZhaoyang(ShanghaiSongjiangDistrictXinbangtownAgriculturalandruralservicecenter，Shanghai201600，China)Abstract:Toassessthedietaryexposureriskofpyraclostrobinresidueinblueberries，thefinalresiduesanddeclinetrendsofpyraclostrobinusedinblueberrieswereinvestigated.Thedietaryex-posureandriskassessmentwereconductedbasedondatafromthesupervisedfieldtrial.Theblue-berriesweretreatedtwicewithpyraclostrobinatarateof150a.imL/hm2withaseven－dayinter-val.Theresultsshowedthattheaveragerecoveriesofpyraclostrobininblueberrysamplesatthefivespikedlevelsfrom0.01～1mg/kgwere92%～100%，withtherelativestandarddeviation(ＲSD)rangingfrom2.9%～9.4%.Thelimitofquantification(LOQs)ofpyraclostrobininblueberrieswas0.01mg/kg.Thedeclinedynamicsofpyraclostrobinfollowedfirst－orderkineticswithahalf－lifeof4.7d.Thefinalresiduelevelofpyraclostrobinatharvestrangedfrom0.11～0.29mg/kgon—74—农药研究PesticideScienceandAdministration2023，44(1)days3，5，7，10afterthelastapplication.Thechronicriskquotientofpyraclostrobinwascalcu-latedfromtheresiduetrialdata，theiracceptabledailyintake，dietaryconsumptionandbodyweightofChineseresidents...
