Dynamics and fates of trace metals chronically input in a Mediterranean coastal zone impacted by a large urban area

Abstract : Quantification and characterization of chronic inputs of trace metals and organic carbon in a coastal Med-iterranean area (the city of Marseille) during the dry season was carried out. The 625 km 2 watershed includes two small coastal rivers whose waters are mixed with treated wastewater (TWW) just before their outlet into the sea. Dissolved and particulate Cu, Pb, Cd, Zn, Co, Ni and organic carbon concentra-tions in the rivers were comparable to those in other Mediterranean coastal areas, whereas at the outlet, 2-to 18-fold higher concentrations reflected the impact of the TWW. A non-conservative behavior observed for most of the studied metals in the mixing zone was validated by a remobilization experiment performed in the laboratory. The results showed that sorption/desorption processes could occur with slow kinetics with respect to the mixing time in the plume, indicating non-equilibrium in the dis-solved/particulate metal distribution. Thus, a sample filtration immediately after sampling is strictly required.
Liste complète des métadonnées

Littérature citée [55 références]  Voir  Masquer  Télécharger

https://hal-univ-tln.archives-ouvertes.fr/hal-01097079
Contributeur : Cédric Garnier <>
Soumis le : lundi 5 janvier 2015 - 16:57:03
Dernière modification le : jeudi 7 juin 2018 - 14:48:01
Document(s) archivé(s) le : lundi 6 avril 2015 - 10:30:22

Fichier

P30 Oursel 2013.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

B Oursel, Cédric Garnier, Gaël Durrieu, Stéphane Mounier, D Omanovic, et al.. Dynamics and fates of trace metals chronically input in a Mediterranean coastal zone impacted by a large urban area. Marine Pollution Bulletin, Elsevier, 2013, 69, pp.137-149. 〈10.1016/j.marpolbul.2013.01.023〉. 〈hal-01097079〉

Partager

Métriques

Consultations de la notice

95

Téléchargements de fichiers

143