Format

Send to

Choose Destination
Mar Pollut Bull. 2016 Mar 15;104(1-2):355-63. doi: 10.1016/j.marpolbul.2016.01.035. Epub 2016 Feb 3.

Assessment of anthropogenic inputs in the surface waters of the southern coastal area of Sfax during spring (Tunisia, Southern Mediterranean Sea).

Author information

1
Biodiversity and Aquatic Ecosystems UR/11ES72 Research Unit, Department of Life Sciences, Sfax Faculty of Sciences, University of Sfax, Soukra Road Km 3.5. BP 1171, PO Box 3000, Sfax, Tunisia. Electronic address: zaherdrira@yahoo.fr.
2
Biodiversity and Aquatic Ecosystems UR/11ES72 Research Unit, Department of Life Sciences, Sfax Faculty of Sciences, University of Sfax, Soukra Road Km 3.5. BP 1171, PO Box 3000, Sfax, Tunisia.
3
Coastal and Urban Environment Unit, IPEIS, 3000 Sfax, Tunisia.
4
Laboratory of Materials Science and environment (MESLab), University of Sfax, Faculty of Sciences of Sfax, P.B. "1171", 3000 Sfax, Tunisia.
5
Laboratory of Chemistry of Natural Substances, University of Sfax, Faculty of Sciences of Sfax, P.B. "1171", 3000 Sfax, Tunisia.
6
Aix Marseille University, CNRS/INSU, University of Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, 13288 Marseille, France.

Abstract

The coastal marine area of Sfax (Tunisia), which is well-known for its high productivity and fisheries, is also subjected to anthropogenic inputs from diverse industrial, urban and agriculture activities. We investigated the spatial distribution of physical, chemical and biogeochemical parameters in the surface waters of the southern coastal area of Sfax. Pertinent tracers of anthropogenic inputs were identified. Twenty stations were sampled during March 2013 in the vicinity of the coastal areas reserved for waste discharge. Phosphogypsum wastes dumped close to the beaches were the main source of PO4(3-), Cl(-) and SO4(2-) in seawater. The high content in total polyphenolic compounds was due to the olive oil treatment waste water released from margins. These inorganic and organic inputs in the surface waters were associated with elevated COD. The BOD5/COD (<0.5) and COD/BOD5 (>3) ratios highlighted a chemical pollution with organic load of a low biodegradability.

KEYWORDS:

Anthropogenic inputs; BOD(5); COD; Major ions; Polyphenolic compounds; Southern coast of Sfax

PMID:
26837269
DOI:
10.1016/j.marpolbul.2016.01.035
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center