Studies on Pesticides Residues in Fish in Menofia Governorate
Amal Abdelmordy, Fahim Shaltout, Saad Saad
Abstract
A total 90 samples of fish (each 45 samples of Tilapia and Claris) were collected from EL-Bagoria canal , EL-Menofi drainage and Bahr Shibin in Menofia governorate and analyzed to detect and determine Organochlorine(DDDT, aldrin and dieldrin) and organophosphorus (diazinon, Malathion and chlorpyrifos. Organochlorine and organophosphorus pesticides could not be detected in Bahr Shibin while mean value of DDT in Tilapia from EL-Bagoria canal 0.37±0.09, aldrin 0.33±0.03and dieldrin 0.50±0.20 while in EL-Menofi drainage mean level of DDT 0.34±0.07, aldrin 0.40±0.08 and dieldrin 0.40±0.13. while in Claris samples from EL-Bagoria canal mean level of DDT 0.40±0.46 aldrin 0.25±0.07and dieldrin 0. 34±0.08 while from EL-Menofi drainage mean value of DDT 0.27±0.05, aldrin 0.30±0.07 and dieldrin 0.48±0.10. No diazinon in Tilapia from EL-Bagoria while mean level of Malathion 5.50±2.0, mean level of chlorpyrifos 5.0±1.66.whie from EL-Menofi drainage mean level of diazinon 3.33±0.65, mean level of Malathion 4.98±1.22 mean level of chlorpyrifos 3.0±0.71.while in Claris samples from EL-Bagoria there were no diazinon , no Malathion no chlorpyrifos while from EL-Menofi drainage , mean level of diazinon 6.8± 1.42 , mean level of Malathion 4..64±0.81 and mean level of chlorpyrifos 4.0±0.96.