FN Archimer Export Format
PT J
TI To what extend the dam dredging can influence the background level of metals in the Rhine River: using chemical and biological long-term monitoring to answer
BT 
AF LEBRUN, Jeremie D.
   DUFOUR, Marine
   UHER, Emmanuelle
   FABURE, Juliette
   MONS, Raphael
   CHARLATCHKA, Rayna
   GOURLAY-FRANCE, Catherine
   FECHNER, Lise
   FERRARI, Benoit JD
AS 1:1,2;2:1;3:1,2;4:3;5:5;6:6;7:7;8:4;9:8;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;
C1 Irstea, UR HBAN ARTEMHYS, CS 10030, F-92761 Antony, France.
   Federat Res FIRE, FR-3020, F-75005 Paris, France.
   Univ Paris Saclay, AgroParisTech, INRA, UMR ECOSYS, F-78026 Versailles, France.
   IFREMER, F-92138 Issy Les Moulineaux, France.
   Irstea, UR MALY, CS 70077, F-69626 Villeurbanne, France.
   EDF R&D LNHE 6, F-78401 Chatou, France.
   ANSES, DEPR, F-94701 Maisons Alfort, France.
   Ecole Polytech Fed Lausanne, Ctr Ecotox Eawag, EPFL ENAC IIE GE, Stn 2, CH-1015 Lausanne, Switzerland.
C2 IRSTEA, FRANCE
   FEDERAT RES FIRE, FRANCE
   UNIV PARIS SACLAY, FRANCE
   IFREMER, FRANCE
   IRSTEA, FRANCE
   EDF, FRANCE
   ANSES, FRANCE
   ECOLE POLYTECH FED LAUSANNE, SWITZERLAND
SI SIEGE
SE PDG
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-france
   copubli-p187
   copubli-univ-france
   copubli-int-hors-europe
IF 1.525
TC 3
UR https://archimer.ifremer.fr/doc/00413/52458/53244.pdf
   https://archimer.ifremer.fr/doc/00413/52458/53245.pdf
LA English
DT Article
DE ;active biomonitoring;Dreissena polymorpha;DGT;metal bioavailability;natural variability
AB Dredging generates remobilisation of sediments contaminated by non-degradable compounds such as metals, to which aquatic organisms can be exposed. This study aims at assessing the environmental impact of sediments remobilised in the Rhine River (France) during the dredging of Marckolsheim dam by pumping/dilution in 2013 on metal speciation and organisms' exposure. The monitoring coupling chemical and biological tools was performed 2 years before dredging operation on 2 sampling sites, upstream and downstream from the discharge of pumping/dilution, to acquire data on the natural variability of labile (DGT as passive samplers), dissolved and particulate concentrations of Cd, Co, Cr, Cu, Ni, Mn, Pb and Zn in Rhine during full hydrological cycles. In parallel, size-calibrated zebra mussels were transplanted at both sites to monitor continuously metal bioavailability from particulate and dissolved fractions. This long-term monitoring allowed the establishment of reference baselines of Rhine water and mussels' contamination levels and subsequently, the detection of averred environmental changes due to the dredging. Indeed, Co and Mn accumulations in mussels exposed to the discharge were consistent with increasing labile species in Rhine whereas ones of Cr and Pb were likely due to an enhanced particulate bioavailability. Whatever the exposure route, the mussels recovered their basal metal contents 2 weeks after the end of dredging, suggesting a transient impact of sediment remobilisation on bioaccumulation. This long-term monitoring highlights the interest of coupling chemical and biological time-integrated tools for a better assessment of environmental risks because metallic exchanges between organisms and their media are complex and metal-specific. 
PY 2017
PD NOV
SO Knowledge And Management Of Aquatic Ecosystems
SN 1961-9502
PU Edp Sciences S A
IS 418
UT 000415840900001
DI 10.1051/kmae/2017049
ID 52458
ER

EF