批发市场蔬菜农药残留调查及风险评估

[目的]调查北京市批发市场蔬菜的农药残留情况并进行风险评估。[方法]对北京市9个大型蔬菜批发市场6类蔬菜中的16种农药残留进行抽样检测。[结果]北京市蔬菜农药残留超标率全年呈先下降后上升的趋势;不同种类蔬菜的农药残留超标率依次为豆类〉绿叶类〉白菜类〉茄果类〉甘蓝类、瓜类;毒死蜱和克百威2种农药造成蔬菜农药残留超标的比例较高;全年的蔬菜农药安全指数均小于1,说明所检测的农药残留量没有安全风险。[结论]该研究为批发市场蔬菜质量安全监管提供了理论依据。

Pesticide Residue Investigation and Risk Assessment of Vegetables from Vegetable Wholesale Markets

[Objective] The aim was to investigate and estimate risk of pesticide residue in vegetables from vegetable wholesale markets in Beijing.[Method] Sixteen pesticides residues in 6 kinds of vegetables from 9 large marketplaces in Beijing were detected by random sampling.[Result] The results showed that over standard rate of pesticide residue tended to increase first then decrease.Over standard rate of pesticide residue in different kinds of vegetables was investigated as follows: legumes > leaf vegetables > Chinese cabbages > eggplants > cabbages and cucurbits.Pesticide residues over standard in vegetables were mainly caused by chlorpyrifos and carbofuran.Safety indexes of all pesticides were lower than 1 in each sample during a whole year,showing that pesticide residues were safe.[Conclusion] The paper provides a theoretical basis for supervising vegetable safety of vegetable wholesale markets.