Publications

Titles

English :

Monotiring of pesticide residues in human milk, soil, water,and food samples collected from Kafr EI-Zayat Governorate

Abstract

Pesticide residues in human milk and environ-mental samples from Kafr EI-Zayat Governorate in Egypt were analyzed. This governorate is located near one of the biggest pesticide factories in; Egypt. Organochlorine and organophosphorus pesticides were monitored, including those that have been prohibited from use in Egypt. Human milk samples (31 samples) from Kafr EI-Zayat were compared with 11 samples collected from Cairo. Data were compared with results from studies performed in 1987 and 1990. The present study showed that aldrin and dieldrin, heptachlor and heptachlor epoxide, and endrin residues have been eliminated from human milk. Estimated daily in- takes (EDIs) of DDT complex and ) γ-HCH by breast- fed infants in Kafr EI-Zayat were 85.96 and 3.1% of the respective acceptable daily intakes (ADIs). ß-HCH residues showed an increasing pattern, espe- cially in human milk samples from Cairo. DDT complex and HCH isomers in orange, spinach, lettuce, , potatoes, and clover samples ranged from unde- tectable to very low concentrations. Higher levels of DDT and HCH were detected, but aldrin, dieldrin, endrin, and the heptachlors were not detected in food of animal origin. Residues in fish samples were below maximum residue limits established by some developed countries. Those in animal milk samples approached the extraneous residue limits of the Codex Committee on Pesticide Residues. HCH residues in soil were negligible, but DDT residues in soil were somewhat higher. Among water samples, groundwater samples had the highest residues of HCHs and DDTs, followed by Nile River water and then tap water. However, the organochlorine pesticide residues were found at concentrations below the maximum allowable limits set by the World Health Organization for drinking water. Among 12 organophosphorus pesticides moni- tored as parent compounds, dimethoate, malathion,methamidophos, and chlorpyrifos resi- dues were detected in low concentrations in soil samples from a pesticide factory . No organophosephorus pesticide residues were found in plant samples, except for very low residues of dimethoat in an orange sample. Water samples were devoid of organophosphorus residues as parent compounds.

Publication year

1996

Availability location

المعمل المركزى لتحليل متبقيات المبيدات والعناصر الثقيلة فى الأغذية --7 شارع نادى الصيد - الدقى - الجيزة

Availability number

Organization Name

Central Laboratory of Residue Analysis of Pesticides & Heavy Metals in Foods (QCAP) Accredited according to ISO 17025

serial title

Journal of AOAC international

Department

Pesticides Residue Analysis

Author(s) from ARC