Model VI Trace elements Arsenic Ce anomaly Metals Magnetite nanoparticles Nitrogen Aluminium Estuary Métaux Speciation Carbonate Ionic strength Fer Aggregation Natural waters Sol PHREEQC REE Biogeochemistry Hydromorphic soil Gabon Organic carbon Binding Environment Iron Fe oxyhydroxides Hydrology Natural organic matter Leaching Bio-minéralisation HYDROLOGIE Groundwater Bactéries ferriréductrices Carbon Nanoparticules Géochimie Identification Iron oxide Terres rares Adsorption Fecal contamination Bioreduction Colloid GEOF Biogéochimie Reductive dissolution PHREEPLOT Mount Cameroon Oxyde de fer Colloids Redox Fecal stanols Dissolved organic matter Geochemistry Dissolved organic carbon Permien Riparian wetland Modélisation Wetland Column of soil ArsenicIII Fe MID-WALES Characterization Iron reducing bacteria Soil Complexation DOC Humic substances Agricultural catchment Bacteria Bio-dissolution Nanoparticles Organic matter PH Spéciation Colonne du sol Ultrafiltration Actinides NanoSIMS Bio-mineralization Carbonifère Humic acid Modeling Rare earth elements Matière organique Nanoplastics Carbone Brittany Acide humique Expérimentation Sorption PHREEQC-Model VI Competition Palaeoenvironment IronII Colloïdes EXAFS Massif Central