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1、中國農(nóng)學通報2014,30(9):311-316ChineseAgriculturalScienceBulletin中國農(nóng)產(chǎn)品膳食暴露評估模型構(gòu)建初探12231宋雯,陳志軍,錢永忠,徐辰武,劉賢金(1江蘇省農(nóng)業(yè)科學院食品質(zhì)量安全與檢測研究所/農(nóng)業(yè)部農(nóng)產(chǎn)品質(zhì)量安全風險評估實驗室(南京),南京210014;2中國農(nóng)業(yè)科學院農(nóng)業(yè)質(zhì)量標準與檢測技術(shù)研究所/農(nóng)產(chǎn)品質(zhì)量與食物安全重點開放實驗室,北京100081;3揚州大學農(nóng)學院生物統(tǒng)計與試驗設(shè)計教研室,江蘇揚州225009)摘要:由于缺乏中國農(nóng)產(chǎn)品消費量的詳細數(shù)據(jù),現(xiàn)有的精細膳食暴露評估模型難以被直接使用,急需構(gòu)建適用于評價中國農(nóng)產(chǎn)品質(zhì)量安全的新模
2、型。本研究以農(nóng)產(chǎn)品中危害因子的化學物濃度參數(shù)為關(guān)注點,從參數(shù)設(shè)置、模型假設(shè)和算法實現(xiàn)層面構(gòu)建新模型。在SAS/IML環(huán)境下完成了對模型演算過程的程序化,實現(xiàn)了對模型輸出結(jié)果變異性和不確定性的拆分以及定量描述。運用該模型進行實例分析,并將結(jié)果與前人的研究結(jié)論作對比驗證分析,結(jié)果表明:該模型輸出的結(jié)果與前人結(jié)論具有很強的可比性、一致性,且能定量給出相應(yīng)結(jié)果的變異性和不確定性,輸出信息更為豐富。該模型基于合理的假設(shè)和可靠的算法構(gòu)建,適用于中國農(nóng)產(chǎn)品膳食暴露評估,可為中國農(nóng)產(chǎn)品質(zhì)量安全監(jiān)管提供一定的參考依據(jù)。關(guān)鍵詞:農(nóng)產(chǎn)品;膳食暴露評估;模型構(gòu)建中圖分類號:S-3文獻標志碼:A論文編號:2013
3、-1708PreliminaryStudyonModelConstructionofDietaryExposureAssessmentforChineseAgriculturalProducts12231SongWen,ChenZhijun,QianYongzhong,XuChenwu,LiuXianjin(1InstituteofFoodSafetyandMonitoringTechnology,JiangsuAcademyofAgriculturalSciences/KeyLabofAgro-productSafetyRiskEvaluation(Nanjing),Ministryo
4、fAgriculture,Nanjing210014;2InstituteofQualityStandard&TestingTechnologyforAgro-ProductkeyLaboratoryofAgro-productQualityandSafety,ChineseAcademyofAgriculturalSciences,Beijing100081;3GroupofBiostatisticsandExperimentDesign,CollegeofAgriculture,YangzhouUniversity,YangzhouJiangsu225009)Abstract:The
5、existingrefineddietaryexposureassessmentmodelsweredifficulttobeuseddirectlyforlackingdetailedconsumptiondataofChineseagriculturalproducts.Thus,asuitablemodelwasinurgentneedforevaluatingsafetyandqualityofagriculturalproducts.Thispaperaimedtoconstructanewmodelfromparametersetting,modelhypothesisand
6、algorithmimplementation,whichtooktheresidue/concentrationparameterasthemajorconcern.ThesimulationmodelwasestablishedunderthecircumstanceofSAS/IML,andtheseparationandquantificationofvariabilityanduncertaintyhasalsobeenaccomplishedintheframework.Toverifythereliabilityofthemodel,acasewasanalyzedusin
7、git.Andthepaperalsocomparedtheresultwithpreviousstudies,whichindicatedstrongcomparabilityandconsistencebetweenthem.Meanwhilethenewmodelcouldofferthevariabilityanduncertaintyoftheoutput,whichmadetheevaluationresultsmore