title: Organophosphorus pesticides residues in fish samples from the River Nile tributaries in Egypt.
abstract: The concentration of organophosphorus pesticides in fish samples from different tributaries of the Nile River in Egypt was monitored. Fish samples were collected from El Menofiya, canal water supplies (El-Sarsawia, El-Bagoria and Bahr Shebin), in addition to El-Embaby, El-Menofi and Miet Rabiha drainage canals each 2 month during periods of 16 month, June 2007-Septemper 2008. Chloropyrifos, cadusafos, diazinon, prothiphos and malathion were detected in fish tissues samples at level below the maximum residue limit. The highest average amount of chlorpyrifos (9.38 ng g(-1)) and malathion (8.31 ng g(-1)) were detected in El-Embaby drain. Prothiphos were found in tissues collected from El-Sarsawia canal and Miet-Rabiha drain at mean concentration of 4.91 and 6.55 ng g(-1), respectively. Diazinon was only found in one fish sample that collected from El-Menofi drain at the level of 9.23 ng g(-1).
authors.affiliation: Department of Pesticide Residues and Environmental Pollution, Central Agricultural Pesticide Laboratory, Agriculture Research Center, Dokki, Giza, Egypt. farag_malhat@yahoo.com
authors.forename: Farag
authors.initials: F
authors.lastname: Malhat
authors.forename: Islam
authors.initials: I
authors.lastname: Nasr
mesh_terms: D000818:Animals; D004390:Chlorpyrifos / Q000032:analysis; D003976:Diazinon / Q000032:analysis; D004534:Egypt; D004784:Environmental Monitoring / Q000379:methods*; D005399:Fishes; D008294:Malathion / Q000032:analysis; D009943:Organophosphorus Compounds / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D045483:Rivers / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply
chemical_list: D009943:Organophosphorus Compounds; D010573:Pesticide Residues; D014874:Water Pollutants, Chemical; D004390:Chlorpyrifos; D008294:Malathion; D003976:Diazinon