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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-2630
Vol. 7, No. 2, 2010, pp. 271-280
Bioline Code: st10027
Full paper language: English
Document type: Research Article
Document available free of charge

International Journal of Environment Science and Technology, Vol. 7, No. 2, 2010, pp. 271-280

 en Determination of organochlorine compounds in coastal marine sediments from the southern west of the Mediterranean Sea
Fouial-Djebbar, D.; Ahmed, A. Y. Badjah-Hadj & Budzinski, H.

Abstract

Recent evidence suggests that polychlorinated biphenyls might also have adverse reproductive, developmental and endocrine effects. Although, the use of polychlorobiphenyls in Algeria has been banned for more than two decades, large quantities of these compounds containing products remain disseminated, mainly stored in obsolete or damaged equipments. This research describes a study to assess polychlorinated biphenyls distribution in marine sediments collected from the seaside of Tamentfoust touristic resort located in the eastern side of Algiers Bay. After microwave-assisted extraction and purification with both concentrated sulphuric acid and activated silica gel, the extracts were analyzed by gas chromatography with an electron capture detector. Relatively high contamination levels of polychlorinated biphenyls were found in samples collected from the port of Tamentfoust (15 to 70 ng/g d.w.), while the concentrations were lower in the stations located outside the port (0 to 26 ng/g d.w.). Compared with data previously reported by some other researchers, the polychlorobiphenyls concentrations found in this work showed an environmental persistence, but a decrease of approximately 5 times in 30 year i.e since the ban of the use of polychlorinated biphenyls. The predominant polychlorinated biphenyls congeners in all sediment samples were polychlorinated biphenyls138, 153, 180 and 187. This composition was similar to industrial mixture (Aroclor 1260). This probably indicated that the contamination originated from the port and has a continental source.

Keywords
Environment; Extraction; Gas chromatography; Polychlorinated biphenyls

 
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