芹菜农药残留风险评估

Risk assessment of pesticide residues in celery

中文关键词:  芹菜  农药残留  风险系数  膳食摄入  风险评估

英文关键词:celery  pesticide residues  risk coefficient  dietary intake  risk assessment

中文摘要:

      目的 评估芹菜样品的农药残留风险, 为生产上安全合理使用农药及制订农药最大残留限量标准提供参考依据。方法 随机抽取基地30份芹菜样品, 检测68种农药残留, 分别运用风险系数法、慢性膳食摄入风险(acceptable daily intake, ADI)评估法、急性膳食摄入风险(acute reference dose, ARfD)评估法、风险矩阵排序法进行芹菜农药残留风险评估。结果 芹菜农药残留合格率为70.00%, 超标农药为甲拌磷、二甲戊灵、阿维菌素、对硫磷。甲拌磷、对硫磷、阿维菌素和二甲戊灵的风险系数R﹥2.5, 为高风险农药, 其余农药为低风险。慢性膳食摄入风险及急性膳食摄入风险均在可接受范围内。风险矩阵排序位于前五位的分别是甲拌磷、对硫磷、阿维菌素、异丙威、联苯菊酯。结论 芹菜种植中农药残留超标率较高, 其中甲拌磷风险最大, 其次为对流磷和阿维菌素等, 应重点监控芹菜种植中这些农药的使用。

英文摘要:

      Objective To assess the risk of pesticide residues in celery, and to provide reference for the safe and rational use of pesticides in production and the establishment of maximum residue limits (MRLs) of pesticides. Methods Thirty kinds of celery samples were randomly selected from the vegetable production base, and 68 kinds of pesticide residues were detected. Risk coefficient method, chronic dietary intake risk assessment method, acute dietary intake risk assessment method and risk matrix ranking method were used to assess the pesticide residue risk of celery. Results The qualified rate of pesticide residues in celery was 70.00%, and the over standard pesticides were phorate, pendimethalin, abamectin and parathion. The risk coefficients of phorate, parathion, abamectin and pendimethalin were more than 2.5. Four kinds of pesticides were high-risk pesticides, and the others were low risk. The chronic dietary intake risk and acute dietary intake risk were within the acceptable level. The top five in the risk matrix were phorate, parathion, abamectin, isoprocarb and bifenthrin. Conclusion The qualified rate of pesticide residues in celery is rarely low. Phorate has the highest risk, followed by parathion and abamectin. It is necessary to monitor the use of these pesticides in celery planting.