Assessment of Organochlorine Pesticide in Water and Sediment Samples Collected from El-Rahawy Drain, Egypt
Publish place: Iranica Journal of Energy and Environment، Vol: 2، Issue: 3
Publish Year: 1390
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJEE-2-3_001
تاریخ نمایه سازی: 1 اردیبهشت 1393
Abstract:
The concentrations of organochlorine pesticides were determined in surface water and bed sediments from El Rahawy drain in the south-western part of Nile Delta. Results obtained show that the concentration of~DDT compounds in surface water range from 0.008 to 0.239 flg L - 1 and from 0.011 to 3.10 flg kg-1 (dry weight)in bed sediments during wet and dry seasons. Hexachlocyclohexanes (HCHs) have also been widely used inthe region but the current environmental concentrations are slightly higher than those of DDT's, which is due to the less persistence of those compounds. Cyclodienes (Cds) were measured, for example as endosulfan II, in concentrations range from 0.021 to 0.823 flg L - 1 and 0.09 to 1.73 flg kg-1 (dry weight) in surface water andbed sediments, respectively. The investigation of OCPs in the surface water and sediments are still within safety margins compared to Canadian guidelines
Keywords:
Organochlorine pesticides · El Rahawy drain · Water · Sediments · Canadian guidelines
Authors
MohamedM El Bouraie
National Water Research Centre, Central Laboratory for Environmental Quality Monitoring, Cairo, Egypt
Ahmed A. El Barbary
Departrnent ofChernistry, Tanta University, Tanta, Egypt