设施葡萄农药残留风险评估

目的全面了解和掌握浙江省慈溪市设施栽培条件下的葡萄农药残留污染情况。方法 2008年到2013年对慈溪市各镇街道生产的设施葡萄进行了随机抽样,利用气相色谱仪对169批次葡萄样品进行了23种常用农药残留的定量检测分析。对检测数据利用危害物风险系数和安全指数指标评估农药残留的安全性。结果近6年,葡萄中农药残留检出率为24.85%,超标率为0.59%。有农药残留检出的时间段主要在7月份,百菌清、氯氟氰菊酯、氯氰菊酯和腐霉利等4种农药检出率较高。结论 从安全指数来看,对葡萄安全影响的风险和安全状态均在可接受范围内。从风险系数来看,本文除氰戊菊酯为中度风险外,其余22种农药皆处于低度风险状态。

Risk estimate of pesticide residues in greenhouse grape

Objective : In order to understand pesticide pollution in greenhouse grape and to provide the basis for surveillance and control of greenhouse grape safety. Methods: 169 greenhouse Grape samples were collected from the fruit production base in Cixi in 2008-2013.Twenty-three pesticide residues in greenhouse Grape were investigated by GC. Results :the sample detection rate and sample exceeding tolerance rate of 169 samples was 24.85% and 0.59% in recent 6 years. The time of pesticide residues found was mainly in July. 4 kinds of Chlorothalonil, cyhalothrin, cypermethrin and procymidone have the higher detection rate. Conclusion: The safety indexes of all pesticides were lower than 1, and the safety was not a certain risk. The residues risk coefficients of (R) twenty-two pesticides were all in low safety states except fenvalerate.