贵州省茶叶中3种拟除虫菊酯类农药残留及膳食风险评估  

Residues and dietary risk assessment of 3 pyrethroid pesticides in tea in Guizhou province

作　　者：聂敏 黄文源 张盈[2] 张新忠[3] 段婷婷[2] 崔新仪 NIE Min;HUANG Wen-yuan;ZHANG Ying;ZHANG Xin-zhong;DUAN Ting-ting;CUI Xin-yi(College of Horticulture and Landscape Architecture,Tianjin Agricultural University,Tianjin 300384,China;Institute of Plant Protection,Guizhou Academy of Agricultural Sciences,Guiyang 550006,China;Agricultural Products Quality Safety Research Center,Tea Research Institute,Chinese Academy of Agricultural Sciences,Hangzhou 310008,China)

机构地区：[1]天津农学院园艺园林学院,天津300384 [2]贵州省农业科学院植物保护研究所,贵阳550006 [3]中国农业科学院茶叶研究所农产品质量安全研究中心,杭州310008

出　　处：《农药》2023年第4期272-276,共5页Agrochemicals

基　　金：黔科中引地([2022]4008);贵州省植物保护研究所自立项目(黔植保[2021]05号)。

摘　　要：[目的]明确贵州各地区茶叶中高效氯氟氰菊酯、溴氰菊酯和联苯菊酯农药的残留水平及相关膳食风险。[方法]样品通过乙腈提取,经石墨化碳黑-氨基复合固相萃取柱(Carb/NH2小柱)净化,气相色谱检测结果,并对一般人群的膳食风险做出了初步评价。[结果]贵州茶叶中高效氯氟氰菊酯检出率为5.00%,残留量在0.05~0.25 mg/kg之间;溴氰菊酯检出率为14.50%,残留量在0.05~1.20 mg/kg之间;联苯菊酯检出率较高(23.00%),残留量在0.05~1.40 mg/kg之间。贵州茶叶中3种农药的慢性膳食风险(%ADI)和急性膳食风险(%ARfD)范围分别为0.03%~0.19%、1.50%~18.00%,2种膳食风险均小于100%,为可接受风险。茶叶中3种农药的慢性、急性累积摄入风险危害指数HI分别为0.34%、22.50%,均小于100%,为可接受风险。[结论]贵州茶叶中残留的高效氯氟氰菊酯、溴氰菊酯和联苯菊酯对一般人群所产生的慢性、急性膳食风险均在可接受范围内,对人类健康不构成威胁。[Aims]This study aims to clarify the residue levels and related dietary risks of 3 pyrethroid pesticides,lambda-cyhalothrin,deltamethrin and bifenthrin,in tea leaves from different areas in Guizhou.[Methods]The samples were extracted with acetonitrile and detected by GC after being purified by graphitized carbon black-amino composite solid phase extraction column(Carb/NH2 small column),and an assessment of the dietary risk in the general population was preliminarily evaluated.[Results]The detection rate of lambda-cyhalothrin in Guizhou tea was 5.00%,the residual amount was between 0.05 and 0.25 mg/kg;the detection rate of deltamethrin was 14.50%,and the residual amount was between 0.05 and 1.20 mg/kg;the detection rate of bifenthrin was 23.00%,and the residual amount was between 0.05 and 1.40 mg/kg.The risk of chronic dietary intake(%ADI)of the 3 pesticides in Guizhou tea ranged from 0.03%to 0.19%,while the risk of acute dietary intake(%ARfD)ranged from 1.50%to 18.00%,and both of the diet risks which were less than 100%were acceptable.The chronic and acute cumulative intake hazard indices HI of the 3 pesticides in tea were 0.34%and 22.50%respectively,both less than 100%,which were acceptable.[Conclusions]The chronic and acute dietary intake risks of residual lambda-cyhalothrin,deltamethrin and bifenthrin in Guizhou tea to the general population were acceptable and would not pose a threat to human health.

关 键 词：茶叶 高效氯氟氰菊酯 溴氰菊酯 联苯菊酯 膳食风险评估 

分 类 号：TQ450.2[化学工程—农药化工]