甜瓜MRLs增补种类及其建议值分析

为明确甜瓜最大残留限量值增补种类及其建议值，本文以2018和2019年6个省份545份甜瓜为实验材料，在完成实验材料中60种农药残留定量分析的基础上，通过急性膳食风险分析（%ADI）、慢性膳食风险分析（%ARfD）、风险矩阵等技术方法，探讨了甜瓜残留农药的质量安全风险，开展了风险相对较高残留农药及最大残留限量值（MRLs）增补种类及其建议值的研究与分析，结果显示:残留农药急、慢性膳食风险均低于100%，二甲戊灵的急性膳食风险相对较高，达到56.67%；残留农药中，哒螨灵、甲维盐、联苯菊酯的残留风险相对较高；65.22%的残留农药无最大残留限量，其中包括3种风险相对较高的残留农药。综合以上分析可知:哒螨灵、甲维盐、联苯菊酯、二甲戊灵兼具风险相对较高和无最大残留限量的特点，建议制订对应限量值，建议值依次为:1、0.05、1、3 mg·kg?1。

Analysis of Supplementary Types of Melon MRLs and Their Recommended Values

This study aimed to clarify the maximum residue limit value of muskmelon, the additional types and their recommended values. Based on the quantitative analysis of 60 pesticide residues in 545 melon samples from 6 provinces in 2018 and 2019, the detected pesticide varieties were evaluated for chronic dietary intake risk (%ADI), acute dietary intake risk (%ARfD) and risk matrix. The quality and safety risks of pesticide residues in muskmelon were discussed, and the research and analysis on the relatively high risks of pesticide residues and the supplementary types and recommended values of maximum residue limits (MRLs) were carried out. The results showed that the acute and chronic dietary risks of residual pesticides were less than 100%, and the acute dietary risk of pendimethalin was relatively high, reaching 56.67%, among the residual pesticides, pyridaben, emamectin benzoate, and bifenthrin had relatively high risk. And 65.22% of residual pesticides had no MRLs, including 3 residual pesticides with relatively high risks. Based on the above analysis, pyridaben, emamectin benzoate, bifenthrin and pendimethalin had the characteristics of relatively high risk and no maximum residue limit. It was recommended to formulate corresponding limit values. The recommended values were as follows: 1, 0.05, 1, 3 mg·kg?1.