Suspended particulate matter determines physical speciation of Fe, Mn, and trace metals in surface waters of Loire watershed

Autor: Serge Stoll, Mikael Motelica-Heino, Frédéric Huneau, Gilles Braibant, Philippe Le Coustumer, Nathalie Guigues, Mohamed Baalousha
Přispěvatelé: Center for Environmental Nanoscience and Risk, University of South Carolina [Columbia], Forel Institute, University of Geneva [Switzerland], Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Biogéosystèmes Continentaux - UMR7327, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Laboratoire National de Métrologie et d'Essais [Trappes] (LNE ), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Sciences pour l'environnement (SPE), Centre National de la Recherche Scientifique (CNRS)-Université Pascal Paoli (UPP), Université Pascal Paoli (UPP), Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Watershed
Iron
Health
Toxicology and Mutagenesis
media_common.quotation_subject
chemistry.chemical_element
Context (language use)
Manganese
010501 environmental sciences
01 natural sciences
Hetero-aggregation
Suspended particle matter
Rivers
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry
Dissolved organic carbon
ddc:550
Environmental Chemistry
Organic matter
Colloids
0105 earth and related environmental sciences
media_common
chemistry.chemical_classification
ddc:333.7-333.9
Surface waters
General Medicine
Particulates
Natural nanoparticles
Physical speciation
Total dissolved solids
Pollution
6. Clean water
Speciation
chemistry
Metals
Environmental chemistry
[SDE]Environmental Sciences
Particulate Matter
Natural iron and manganese
Loire River watershed
France
Water Pollutants
Chemical
Environmental Monitoring
Zdroj: Environmental Science and Pollution Research
Environmental Science and Pollution Research, Springer Verlag, 2019, 26 (6), pp.5251-5266. ⟨10.1007/s11356-018-1416-5⟩
Environmental Science and Pollution Research (2018)
ISSN: 0944-1344
1614-7499
DOI: 10.1007/s11356-018-1416-5⟩
Popis: This study investigates the spatiotemporal variability of major and trace elements, dissolved organic carbon (DOC), total dissolved solids (TDS), and suspended particulate matter (SPM) in surface waters of several hydrosystems of the Loire River watershed in France. In particular, this study aims to delineate the impact of the abovementioned water physicochemical parameters on natural iron and manganese physical speciation (homoaggregation/heteroaggregation) among fine colloidal and dissolved ( 10 nm), colloidal (10-450 nm) and particulate ( 450 nm) phases in Loire River watershed. Results show that the chemistry of the Loire River watershed is controlled by two end members: magmatic and metamorphic petrographic context on the upper part of the watershed; and sedimentary rocks for the middle and low part of the Loire. The percentage of particulate Fe and Mn increased downstream concurrent with the increase in SPM and major cations concentration, whereas the percentage of colloidal Fe and Mn decreased downstream. Transmission electron microscopy analyses of the colloidal and particulate fractions (from the non-filtered water sample) revealed that heteroaggregation of Fe and Mn rich natural nanoparticles and natural organic matter to the particulate phase is the dominant mechanism. The heteroaggregation controls the partitioning of Fe and Mn in the different fractions, potentially due to the increase in the ionic strength, and divalent cations concentration downstream, and SPM concentration. These findings imply that SPM concentration plays an important role in controlling the fate and behavior of Fe and Mn in various sized fractions. Graphical abstract Physical speciation by heteroaggregation of (Fe-Mn) compounds: high [SPM] → [Fe-Mn] particulate faction; low {SPM] → [Fe-Mn] colloid-dissolved fraction.
Databáze: OpenAIRE
Externí odkaz: