This monitoring study of 40 samples of cow's milk collected from different locations at Gharbia Governorate during the four different seasons of the years 2005-2006, was conducted to determine the contamination levels of seven pesticide residues including four organophosphorous ( chlorpyrifos, diazinon, dimethoate, and malathion) and three synthetic pyrethroides ( cypermethrin, deltamethrin and fenvelerate), as well as five heavy metals ... إقراء المزيد