Detection of organophosphorus pesticide residues in vegetabies in markets of Mianyang City

OBJECTIVE To research organophosphorus pesticide residues in the vegetables sold in markets of Mianyang.METHODS The method of GB/T5009.20-2003 was applied to determine the contents of seven organophosphorus pesticide in samples selected randomly.RESULTS The organophosphorus pesticide residues in 108 vegetable samples were monitered During 2009 to 2010,The total unqualified rate was 37.86%.While the unqualified rate of the leaf,The root-stem,the fruits vegetables and delicacies of mushroom was 51.85%,41.67%,28.13% and 25%,respectively.The unquality rated of all kinds of vegetables had a significant difference(χ2=8.68,P﹤0.01).CONCLUSION In Mianyang city,organophosphorus pesticide residues are relatively serious in vegetabies.It is necessary to strengthen the survellance of pesticide residuss and spread green nuisance-free vegetables.