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对贵州省毕节市售蔬菜、水果农药残留量进行检测和分析,了解毕节市农产品中农药的污染情况。2012年3-11月在毕节市的蔬菜生产基地、批发市场、农贸市场和超市随机抽取蔬菜、水果共227份,检测有机氯、有机磷农药残留20项,并将检测结果与国家相关标准对照。农产品中农药残留的超标率和检出率分别为3.0%和16.7%,水果类、豆类、瓜类、葱类和叶菜类检出率分别为0%、3.3%、5.7%、11.1%和24.0%;在农药中毒死蜱和百菌清检出率最高,分别为52.6%和15.8%;其中在禁用农药中甲胺磷检出率最高。超市农产品农药残留水平总体较低,其超标率检和出率分别为1.8%和14.3%。毕节市售蔬菜存在农药污染现象,毒死蜱、百菌清在大白菜、白菜、生菜中检出率较高,分别为41.7%、36.4%、33.3%。而且在蔬菜中违规使用氧化乐果、对硫磷和甲胺磷等国家禁用农药。
Bijie Guizhou Province, the sale of vegetables, fruits and pesticide residues were detected and analyzed to understand the agricultural products in Bijie pesticide pollution. A total of 227 vegetables and fruits were randomly selected from vegetable production bases, wholesale markets, farmer’s markets and supermarkets in Bijie City from March to November in 2012. 20 pesticide residues of organochlorines and organophosphorus pesticides were detected, and the test results were compared with the national standards . The over-standard rate and the detected rate of pesticide residues in agricultural products were 3.0% and 16.7% respectively. The detection rates of fruits, beans, melons, onions and leafy vegetables were 0%, 3.3%, 5.7% and 11.1% And 24.0%, respectively. The highest detection rates of chlorpyrifos and chlorothalonil in pesticides were 52.6% and 15.8% respectively, of which methamidophos was the highest among banned pesticides. The pesticide residue level of agricultural products in supermarkets is generally low, and the rate of exceeding the standard rate is 1.8% and 14.3% respectively. Pesticide contamination was found in vegetables sold in Bijie. The chlorpyrifos and chlorothalonil were higher in Chinese cabbage, Chinese cabbage and lettuce, accounting for 41.7%, 36.4% and 33.3% respectively. And the illegal use of omethoate in vegetables, parathion and methamidophos and other countries banned pesticides.