Origin and distribution of hydrocarbons and organic matter in the surficial sediments of the Sfax-Kerkennah channel (Tunisia, Southern Mediterranean Sea)
Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要:
We investigated the origin and distribution of aliphatic and polycyclic aromatic hydrocarbons (AHs and PAHs) and organic matter (OM) in surficial sediments of the Sfax-Kerkennah channel in the Gulf of Gab�s (Tunisia, Southern Mediterranean Sea). TOC, AH and PAH concentrations ranged 2.3–11.7%, 8–174�μg�g−�1�sed.�dw and 175–10,769�ng�g−�1�sed.�dw, respectively. The lowest concentrations were recorded in the channel (medium sand sediment) and the highest ones in the Sfax harbor (very fine sand sediment). AHs, PAHs and TOC were not correlated for most of the stations. TOC/N and δ13C values revealed a mixed origin of OM with both marine and terrestrial sources. Hydrocarbon molecular composition highlighted the dominance of petrogenic AHs and the presence of both petrogenic and pyrogenic PAHs, associated with petroleum products and combustion processes. This work underscores the complex distribution patterns and the multiple sources of OM and hydrocarbons in this highly anthropogenized coastal environment. � 2017 Elsevier Ltd
Laboratoire d'Oc�anographie et du Climat, Exp�rimentation et Approches Num�riques LOCEAN, UMR CNRS 7159, CNRS/IRD/UPMC/MNHN, Universit� Pierre et Marie Curie, Case courrier 100, 4 Place Jussieu, Paris, France; Laboratoire des Bioproc�d�s Environnementaux, P�le d'Excellence R�gional AUF (PER-LBP), Centre de Biotechnologie de Sfax, BP, 1177, Sfax, Tunisia; Aix Marseille Universit�, CNRS/INSU, Universit� de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, Marseille, France; Study and Management of Coastal and Urban Environments, National School of Engineers of Sfax, University of Sfax, Soukra, Sfax, Tunisia; Laboratoire Eau-Energie-Environnement (Lab 3E), Universit� de Sfax, ENIS, BP W, Sfax, Tunisia
Recommended Citation:
Zaghden H.,Tedetti M.,Sayadi S.,et al. Origin and distribution of hydrocarbons and organic matter in the surficial sediments of the Sfax-Kerkennah channel (Tunisia, Southern Mediterranean Sea)[J]. Marine Pollution Bulletin,2017-01-01,117(2018-01-02)