Dogheim S M, Gad Alla S A, el-Syes S M, Almaz M M, Salama E Y
Ministry of Agriculture, Laboratory of Residue Analysis of Pesticides and Heavy Metals in Food, Dokki, Egypt.
J AOAC Int. 1996 Jul-Aug;79(4):949-52.
A market basket survey was conducted to monitor organochlorine and organophosphorus pesticide residues in potatoes, citrus fruits, and fish collected from local Egyptian markets. Maximum Residue Limits (MRLs) of the Codex Committee on Pesticide Residues for gamma-hexachlorocyclohexane (HCH) in potatoes were exceeded in 8 samples and for DDT in 2 samples. The aging of HCH and DDT indicated a recent use of both pesticides during the potato storage period between cultivation seasons. However, such use is illegal because HCH mixture isomers (gammaxane) and DDT have been officially prohibited from agricultural use in Egypt since 1980. The highest residue levels of fenitrothion (3.8 ppm) in potatoes may be due to its repeated use before and after harvest. No organochlorine pesticide residues were found in citrus fruits. None of the detected organophosphorus pesticides exceeded their MRLs. HCH and DDT residue limits were exceeded in 5 and 7 fish samples, respectively, collected from 12 markets throughout the country. The heptachlor MRL was violated in only one fish sample (3.9 ppm).
开展了一项市场篮子调查，以监测从埃及当地市场采集的土豆、柑橘类水果和鱼类中的有机氯和有机磷农药残留情况。8份土豆样品中γ-六氯环己烷（HCH）的农药残留量超过了农药残留法典委员会规定的土豆中HCH最大残留限量（MRLs），2份土豆样品中滴滴涕（DDT）的残留量超标。HCH和DDT的残留情况表明，在种植季节之间的土豆储存期近期使用了这两种农药。然而，这种使用是非法的，因为自1980年以来，HCH混合异构体（林丹）和DDT在埃及已被正式禁止用于农业。土豆中杀螟硫磷的最高残留水平（3.8 ppm）可能是由于在收获前后反复使用所致。在柑橘类水果中未发现有机氯农药残留。所检测的有机磷农药均未超过其MRLs。从全国12个市场采集的鱼类样品中，分别有5份和7份样品的HCH和DDT残留量超标。仅1份鱼类样品（3.9 ppm）的七氯残留量超过了MRL。
