000232751 001__ 232751
000232751 005__ 20180913064603.0
000232751 0247_ $$2doi$$a10.1051/kmae/2017049
000232751 022__ $$a1961-9502
000232751 02470 $$2ISI$$a000415840900001
000232751 037__ $$aARTICLE
000232751 245__ $$aTo what extend the dam dredging can influence the background level of metals in the Rhine River: using chemical and biological long-term monitoring to answer
000232751 260__ $$aLes Ulis Cedex A$$bEdp Sciences S A$$c2017
000232751 269__ $$a2017
000232751 300__ $$a11
000232751 336__ $$aJournal Articles
000232751 520__ $$aDredging 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.
000232751 6531_ $$aactive biomonitoring
000232751 6531_ $$aDreissena polymorpha
000232751 6531_ $$aDGT
000232751 6531_ $$ametal bioavailability
000232751 6531_ $$anatural variability
000232751 700__ $$aLebrun, Jeremie D.$$uIrstea, UR HBAN ARTEMHYS, CS 10030, F-92761 Antony, France
000232751 700__ $$aDufour, Marine$$uIrstea, UR HBAN ARTEMHYS, CS 10030, F-92761 Antony, France
000232751 700__ $$aUher, Emmanuelle$$uIrstea, UR HBAN ARTEMHYS, CS 10030, F-92761 Antony, France
000232751 700__ $$aFabure, Juliette$$uUniv Paris Saclay, AgroParisTech, INRA, UMR ECOSYS, F-78026 Versailles, France
000232751 700__ $$aMons, Raphael$$uIrstea, UR MALY, CS 70077, F-69626 Villeurbanne, France
000232751 700__ $$aCharlatchka, Rayna$$uEDF R&D LNHE 6, F-78401 Chatou, France
000232751 700__ $$aGourlay-France, Catherine$$uANSES, DEPR, F-94701 Maisons Alfort, France
000232751 700__ $$aFechner, Lise C.$$uIFREMER, F-92138 Issy Les Moulineaux, France
000232751 700__ $$aFerrari, Benoit J. D.
000232751 773__ $$k418$$q54$$tKnowledge And Management Of Aquatic Ecosystems
000232751 8564_ $$s1392595$$uhttps://infoscience.epfl.ch/record/232751/files/2017_Lebrun_etal_KMAE_418.pdf$$yn/a$$zn/a
000232751 909C0 $$0252506$$pECOTOX$$xUS18204
000232751 909CO $$ooai:infoscience.tind.io:232751$$particle$$pENAC
000232751 917Z8 $$x242289
000232751 937__ $$aEPFL-ARTICLE-232751
000232751 973__ $$aOTHER$$rREVIEWED$$sPUBLISHED
000232751 980__ $$aARTICLE