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海南芒果中农药多残留分析
引用本文:马晨,张群,刘春华,段云.海南芒果中农药多残留分析[J].农药学学报,2021,23(3):552-560.
作者姓名:马晨  张群  刘春华  段云
作者单位:中国热带农业科学院 分析测试中心,海南省热带果蔬产品质量安全重点实验室,农业农村部热作产品质量安全风险评估实验室 (海口),海口 571101
基金项目:中国热带农业科学院基本科研业务费专项资金 (1630082017003,1630082020006);国家农产品质量安全风险评估重大专项 (GJFP2019013)
摘    要:为掌握海南省芒果中农药的多残留情况及其对慢性膳食摄入风险的贡献大小,采集海南省主产区芒果样品178份,分别采用气相色谱及超高效液相色谱-串联质谱方法测定了样品中农药的残留情况,并计算了芒果中所检出农药对我国不同人群慢性膳食摄入风险的贡献份额 (R)。结果表明:甲氧基丙烯酸酯类和新烟碱类农药的残留检出率最高 (> 80.00%)。根据我国制定的相关最大残留限量 (MRL) 标准,以下农药残留量均存在超标现象,其中吡唑醚菌酯共有39份样品超标,吡虫啉34份,噻虫胺5份,苯醚甲环唑2份,灭多威和多效唑各1份;71.91%的样品同时含有2种及2种以上单个农药残留,最多者同时检出了8种单个农药残留;同时检出2种及2种以上甲氧基丙烯酸酯类或新烟碱类农药的样品比例分别为23.03%和16.30%;嘧菌酯/吡唑醚菌酯、吡虫啉/吡唑醚菌酯、吡虫啉/嘧菌酯是最常见的农药多残留组合。本研究所检出农药的R值均远远低于1,说明通过芒果摄入的农药残留对整个慢性膳食摄入风险的贡献极小。

关 键 词:芒果    农药多残留    最大残留限量    甲氧基丙烯酸酯类农药    新烟碱类农药
收稿时间:2020-06-30

Analysis of multiple pesticide residues in mango of Hainan Province
Institution:Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Laboratory of Quality & Safety Risk Assessment for Tropical Products (Haikou) Ministry of Agriculture and Rural Affairs, Analysis and Testing Center, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
Abstract:To evaluate the multiple pesticide residues and the contribution to chronic dietary exposure risks in Hainan mango samples, 178 mango samples were analyzed and the contribution to chronic dietary exposure risk (R) for different Chinese populations was calculated. The most frequently detected pesticide groups were strobilurin and neonicotinoid, and the detection rates were higher than 80.00%. According to the MRLs in China, pyraclostrobin in 39 samples, imidacloprid in 34 samples, clothianidin in 5 samples, difenoconazole in 2 samples, methomyl in 1 sample and paclobutrazol in 1 sample exceeded the MRLs. 71.91% of the samples contained two or more pesticide residues, and the number of detected pesticides was up to 8 in some mango samples. The percentage of mango samples with two or more pesticides of strobilurin or neonicotinoid were 23.03% and 16.30%, respectively. Azoxystrobin/pyraclostrobin, imidacloprid/pyraclostrobin, and imidacloprid/azoxystrobin were the most frequently detected pesticide combinations. The values of R were far below 1, which indicated that the contribution of pesticide residues through mango to the chronic dietary exposure risk was extremely low.
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