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2012•Journal of Marine Science Research & DevelopmentRequires access

Polychlorinated Biphenyls and Chlorinated Pesticides in Sediments along the Semi-Closed Areas of Alexandria, Egypt

Mohamed A. Shreadah, Tarek O. Said, Islam M. Othman, Eiman M. I. Fathallah, Mohamed E. Mahmoud

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Abstract

The residues of 19 EPA-organochlorine pollutants were analyzed in sediments collected from 49 different locations along the semi-closed areas of Alexandria, Egypt. The pollutants studied were 7 individual polychlorinatedbiphenyl (PCB) congeners, α,β,γ-hexachlorocyclohexane (HCHs), cyclodienes (aldrin, endrin, dieldrin) and dichlorodiphenyltrichloroethanes (DDTs) (o,p-DDE, p,p-DDE, o,p-DDD, p,p-DDD, o,p-DDT, p,p-DDT). The concentration of total DDTs ranged between ND and 123.76 ng·g −1 (dry wt) whereas the concentration of PCBs, HCHs and cyclodienes ranged from ND to 192.24 ng·g −1 ; ND to 20.78 ng·g −1 and ND to 8.04 ng·g −1 dry wt, respectively. The average total organic carbon (TOC) percent was varied from 0.04% to 7.65%.

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What this paper is about

The residues of 19 EPA-organochlorine pollutants were analyzed in sediments collected from 49 different locations along the semi-closed areas of Alexandria, Egypt. The pollutants studied were 7 individual polychlorinatedbiphenyl (PCB) congeners, α,β,γ-hexachlorocyclohexane (HCHs), cyclodienes (aldrin, endrin, dieldrin) and dichlorodiphenyltrichloroethanes (DDTs) (o,p-DDE, p,p-DDE, o,p-DDD, p,p-DDD, o,p-DDT, p,p-DDT). The concentration of total DDTs ranged between ND and 123.76 ng·g −1 (dry wt) whereas the concentration of PCBs, HCHs and cyclodienes ranged from ND to 192.24 ng·g −1 ; ND to 20.78 ng·g −1 and ND to 8.04 ng·g −1 dry wt, respectively. The average total organic carbon (TOC) percent was varied from 0.04% to 7.65%.

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Available abstract

The residues of 19 EPA-organochlorine pollutants were analyzed in sediments collected from 49 different locations along the semi-closed areas of Alexandria, Egypt. The pollutants studied were 7 individual polychlorinatedbiphenyl (PCB) congeners, α,β,γ-hexachlorocyclohexane (HCHs), cyclodienes (aldrin, endrin, dieldrin) and dichlorodiphenyltrichloroethanes (DDTs) (o,p-DDE, p,p-DDE, o,p-DDD, p,p-DDD, o,p-DDT, p,p-DDT). The concentration of total DDTs ranged between ND and 123.76 ng·g −1 (dry wt) whereas the concentration of PCBs, HCHs and cyclodienes ranged from ND to 192.24 ng·g −1 ; ND to 20.78 ng·g −1 and ND to 8.04 ng·g −1 dry wt, respectively. The average total organic carbon (TOC) percent was varied from 0.04% to 7.65%.

Key concepts: Dieldrin, Endrin, Aldrin, Environmental chemistry, Pollutant, Pesticide, Hexachlorocyclohexane, Chemistry

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