期刊名称：Iranica Journal of Energy and Environment (IJEE)
印刷版ISSN：2079-2115
电子版ISSN：2079-2123
出版年度：2011
期号：3
页码：191-200
语种：English
出版社：Noshirvani University of TEchnology
摘要：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 ΣDDT compounds in surface water range from 0.008 to 0.239 μg L-1 and from 0.011 to 3.10 μg kg-1 (dry weight) in bed sediments during wet and dry seasons. Hexachlocyclohexanes (HCHs) have also been widely used in the 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 μg L-1 and 0.09 to 1.73 μg kg-1 (dry weight) in surface water and bed sediments, respectively. The investigation of OCPs in the surface water and sediments are still within safety margins compared to Canadian guidelines.
