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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Polychlorinated biphenyls (PCBs) and Polybrominated Diphenyl Ethers (PBDEs) in surface sediments from Monastir Bay (Tunisia, Central Mediterranean): Occurrence, distribution and seasonal variations
Chemosphere, Volume 93, No. 3, Year 2013
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Description
An assessment of PCB and PBDE contamination of surface sediments in Monastir Bay was carried out in two contrasted seasons of the year. Samples were collected from 5 sites and analyzed for the ∑7 marker PCBs (i.e. PCBs 28, 52, 101, 118, 138, 153 and 180) and ∑4 PBDE congeners (PBDEs 47, 99, 119 and 153) by GC/ECD. Concentrations of both PCBs and PBDEs showed seasonal variations. PCB concentrations were in the range of 3.1-9.3ngg-1 and 1.1-8.1ngg-1 in wet and dry season respectively, and sediments were considered moderately contaminated with PCBs. All PCBs analyzed were detected in surface sediments. PCB 153 and 52 congeners showed the highest relative abundance in both winter and summer. PBDE concentrations ranged from not detect to 0.1ngg-1, with only BDE-47 congener detected in sediments and only in winter. Analysis of spatial and seasonal variations indicated that PCB distribution is governed by hydrodynamics and temporal variability of inputs. While the PCB contamination appeared to be mainly land-based, PBDEs are suspected to originate from atmospheric deposition. © 2013 Elsevier Ltd.
Authors & Co-Authors
Nouira, Taoufik
Tunisia, Sousse
Higher Institute of Agriculture
Risso, Christine
France, Nice
Ecology and Conservation Science for Sustainable Seas
Chouba, Lassâad
Tunisia, Salammbo
Tunisian National Institute for the Sciences and Technologies of the Sea
Budzinski, Hélène
France, Pessac
Environnements et Paléoenvironnements Océaniques et Continentaux
Boussetta, Hamadi
Tunisia, Sousse
Higher Institute of Agriculture
Statistics
Citations: 66
Authors: 5
Affiliations: 4
Identifiers
Doi:
10.1016/j.chemosphere.2013.06.017
ISSN:
00456535
e-ISSN:
18791298
Study Locations
Tunisia