苏州市农贸市场蔬菜重金属残留调查与分析

edbytargetriskfactor(THQ).TheresultsshowedthattheTHQofCd,Ni,CrandPBinvegetableswerechildren>middle-agedandold>youngandmiddle-aged,andthefourheavymetalsweremoreharmfultochildren.Children,youngadultsandmiddle-agedandelderly3.ThetotaItargetriskfactors(TTHQ)ofthesegroupsare1.003,0.802and0.902,respectively.OnlychildrenhaveTTHQgreaterthan1,whichindicatesthatchildrenbelongtosensitivegroups.Long-termconsumptionofthesevegetablesmaybringhigherhealthrisks.TheTTHQofmiddle-agedandelderlypeopleisclosetotheriskvalueof1,whichshouldalsobepaidenoughattentionKey words:vegetables;heavy metals;pollution index;health risk目录一、问题背景.3二、材料与方法2.1仪器与试剂32.2样品采集....42.3样品预处理..·。….42.4样品重金属的测定方法2.5蔬菜重金属污染评价方法52.6人体健康风险评价方法52.7数据处理..….6三、结果与分析......73.1蔬菜重金属元素的含量3.2蔬菜重金属含量的超标情况..3.3蔬菜重金属的污染评价.....…83.4苏州市蔬菜重金属健康风险评价9四、结果讨论10五、结论....12六、参考文献..13