Pesticide Residues on Some Vegetables and Fruits in Daxing District of Beijing from 2007 to 2009

[Objective] To monitor and analyze the variety and quantity of pesticide residues in some market food in Daxing district of Beijing, understand the pesticide contamination in food.[Methods]From 2007 to 2008, 115 samples of vegetable, fruit and tea were selected in Daxing district randomly. 18 items of organophosphorus and organochlorine pesticide residues, 8 items of pyrethroid pesticide residues and 7 items of carbamate pesticide residues were detected, and the results were campared with the national standards.[Results]The detection rate and exceeding standard rate of pesticide residues in foods was 29.6% and 9.6% respectively. The detection rate of leafy vegetable group, fruit, mushroom and tea group, melon and1 legume group was 45.5%, 32.0%, and 2.9% respectively, and the difference was significant (P=0.000). The etection rate of dimethoate (5.2%) and bifenthrin (6.1%) was the highest, and the exceeding standard rate of parathion and dicofol was the highest, which was the 3.5% (4/115).[Conclusion]There was pesticide contamination on vegetable, fruit and tea in Daxing market, the illegal use of parathion and dicofol was found in vegetables, and the pyrethroid pesticide residues was high in Chinese chive, rape and fruits. The monitoring and safe management in planting and sale process of vegetables and fruits should be strengthened to reduce the harm of pesticide residues.