Investigation of Organochlorine and Pyrethroid Pesticides Residues in Leafy Vegetables on Sale in Xi’an / 环境与健康杂志

ABSTRACT

Objective To investigate the organochlorine and pyrethroid pesticide residue in leafy vegetables on sale in Xi’an and to assess the safety of the leafy vegetables. Methods Eight kinds of leafy vegetables samples were collected at five wholesale markets and five supermarkets in Xi’an from 2007 to 2008. The content of 15 kinds of pesticides residues were analyzed by GC method and the evaluation was made according to GB 2763—2005. Results The rate of detection for the pesticides was 9.8% (465/4 725)and the disqualified rate was 1.2%(57/4 725).There was a significant seasonal difference in the detection rate of pesticides (P