An integrated approach for bioaccumulation assessment in mussels: Towards the development of Environmental Quality Standards for biota

J.M. Zaldívar (1) , D. Marinov (1) , S. Dueri (2) , Javier Castro-Jiménez (3) , C. Micheletti (1) , A.P. Worth (1)

1 IHCP - JRC Institute for Health and Consumer Protection
2 IRD - Institut de Recherche pour le Développement
3 LGEI - Laboratoire de Génie de l'Environnement Industriel

The possibleuseofchemicalconcentrationsmeasuredinmussels(Mytillus galloprovincialis) for compliancecheckingagainstEnvironmentalQualityStandards(EQS)establishedforbiotaisanalyzed with thehelpofanintegratedmodel.Themodelconsistsofa3Dplanktonicmodulethatprovides biomassesinthedifferentcompartments,i.e.,phytoplankton,zooplanktonandbacteria;a3Dfatemodule that providestheconcentrationsofcontaminantsinthewatercolumnandinthesediments;anda3D bioaccumulationmodulethatcalculatesinternalconcentrationsinrelevantbioticcompartments.These modulesfeeda0Dgrowthandbioaccumulationmoduleformussels,basedontheDynamicEnergy Budget(DEB)approach.Theintegratedmodelhasbeenappliedtostudythebioaccumulationofpersistent organicpollutants(POPs)intheThaulagoon(France).Themodelcorrectlypredictstheconcentrationsof polychlorinatedbiphenyls(PCBs)andpolychlorinateddibenzodioxinsanddibenzofurans(PCDD/Fs)in musselsasafunctionoftheconcentrationsinthewatercolumnandinphytoplankton.Italsoshedslight on theoriginofthecomplexityassociatedwiththeuseofEQSforbiotaandtheirconversiontowater column concentrations.Theintegratedmodelispotentiallyusefulforregulatorypurposes,forexamplein the contextoftheEuropeanWaterFramework(WFD)andMarineStrategyFrameworkDirectives(MSFD).

Domaines: Chimie; Sciences de l'environnement; Environnement et Société; Ecotoxicologie; Etudes de l'environnement

J.M. Zaldívar, D. Marinov, S. Dueri, Javier Castro-Jiménez, C. Micheletti, et al.. An integrated approach for bioaccumulation assessment in mussels: Towards the development of Environmental Quality Standards for biota. Ecotoxicology and Environmental Safety, 2011, 74 (3), pp.244-252. ⟨10.1016/j.ecoenv.2010.10.025⟩. ⟨hal-02083421⟩