FN Archimer Export Format
PT J
TI Flood inputs in a Mediterranean coastal zone impacted by a large urban area: Dynamic and fate of trace metals
BT 
AF Oursel, B.
   Garnier, C.
   Zebracki, Mathilde
   Durrieu, G.
   Pairaud, Ivane
   Omanović, D.
   Cossa, Daniel
   Lucas, Yves
AS 1:1;2:1;3:2,3;4:1;5:2;6:4;7:2,5;8:1;
FF 1:;2:;3:PDG-ODE-LER-LERPAC;4:;5:PDG-ODE-LITTORAL-LERPAC;6:;7:PDG-RBE-BE-LBCM;8:;
C1 Université de Toulon, PROTEE, EA 3819, 83957 La Garde, France
   IFREMER, Centre de Méditerranée, Laboratoire Environnement Ressources Provence-Azur-Corse, BP 330, Zone Portuaire de Brégaillon, 83507 La Seyne-sur-Mer, France
   IRSN, Laboratoire d'études radioécologiques en milieu continental et marin, CEN Cadarache, 13115 Saint Paul lez Durance, France
   Ruđer Bošković Institute, Center for Marine and Environmental Research, PO Box 180, 10002 Zagreb, Croatia
   ISTerre, Université J. Fourier, BP 53, 38041 Grenoble, France
C2 UNIV TOULON, FRANCE
   IFREMER, FRANCE
   IRSN, FRANCE
   RUDER BASKOVIC INST, CROATIA
   UNIV GRENOBLE, FRANCE
SI TOULON
SE PDG-ODE-LER-LERPAC
   PDG-ODE-LITTORAL-LERPAC
   PDG-RBE-BE-LBCM
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
   copubli-univ-france
TC 18
UR https://archimer.ifremer.fr/doc/00206/31761/30171.pdf
LA English
DT Article
DE ;WWTP;metals contamination;coastal zone;flood events;Mediterranean Sea;small rivers
AB Trace elements and organic carbon inputs to the Mediterranean sea from an urbanized area (Marseille city) were studied and characterized during flood events. Inputs were brought to the sea by two small coastal rivers whose waters were mixed together and also with treated wastewaters (TWW) just before discharge. The monitoring of the rivers during flood events showed the high temporal dynamics of water flow, suspended particulate matter (SPM), organic carbon and trace metals concentrations, typical of small coastal Mediterranean rivers and requiring an appropriate sampling strategy. Dissolved/particulate partition coefficient (log Kd) in rivers during floods remained quasi-constant for a given trace element, but differed from one element to another according to their affinity toward particles. Because of high SPM concentrations, trace elements were mainly brought to the sea during floods as particles, despite a weaker affinity for particles when compared to baseflow conditions for all studied elements but Pb. If the contribution of TWW dominated the elements baseflow discharge to the coastal zone, rivers outweighed during floods. When discharged to the sea, most trace elements underwent partial desorption in the salinity gradient, especially at highest salinity. Laboratory desorption experiments results were consistent with field data and showed slower desorption kinetics than in baseflow conditions, suggesting that trace elements desorption rates from particles are slower than sedimentation rates. With regard to heavy particles, it results in a potential impact of the sediment on benthic organisms and a possible further desorption after sediment resuspension events. With regard to light particles, it results possible additional desorption during offshore transport.
PY 2014
PD DEC
SO Marine Chemistry
SN 03044203
PU Elsevier BV
VL 167
UT 000345805700006
BP 44
EP 56
DI 10.1016/j.marchem.2014.08.005
ID 31761
ER

EF