globalchange  > 气候减缓与适应
DOI: 10.1016/j.watres.2018.06.064
Scopus记录号: 2-s2.0-85049957542
论文题名:
The interplay between total mercury, methylmercury and dissolved organic matter in fluvial systems: A latitudinal study across Europe
作者: Bravo A.G.; Kothawala D.N.; Attermeyer K.; Tessier E.; Bodmer P.; Ledesma J.L.J.; Audet J.; Casas-Ruiz J.P.; Catalán N.; Cauvy-Fraunié S.; Colls M.; Deininger A.; Evtimova V.V.; Fonvielle J.A.; Fuß T.; Gilbert P.; Herrero Ortega S.; Liu L.; Mendoza-Lera C.; Monteiro J.; Mor J.-R.; Nagler M.; Niedrist G.H.; Nydahl A.C.; Pastor A.; Pegg J.; Gutmann Roberts C.; Pilotto F.; Portela A.P.; González-Quijano C.R.; Romero F.; Rulík M.; Amouroux D.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 144
起始页码: 172
结束页码: 182
语种: 英语
英文关键词: Fluorescence ; Mercury ; Methylmercury ; Organic matter ; Rivers ; Streams
Scopus关键词: Aquatic ecosystems ; Biogeochemistry ; Biological materials ; Fluorescence ; Land use ; Mercury (metal) ; Mercury compounds ; Organic compounds ; Sulfur compounds ; Dissolved organic matters ; Electron acceptor ; Large-scale studies ; Methyl mercury ; Monomethyl mercury ; Morphological descriptors ; Spatial variability ; Streams ; Rivers ; anion ; cation ; dissolved organic matter ; mercury ; methylmercury ; water ; concentration (composition) ; dissolved organic matter ; fluorescence ; fluvial process ; mercury (element) ; methylmercury ; microorganism ; river water ; spatial variation ; streamwater ; aquatic environment ; Article ; catchment ; chemistry ; electron ; Europe ; land use ; nutrient content ; priority journal ; stream (river) ; Europe
英文摘要: Large-scale studies are needed to identify the drivers of total mercury (THg) and monomethyl-mercury (MeHg) concentrations in aquatic ecosystems. Studies attempting to link dissolved organic matter (DOM) to levels of THg or MeHg are few and geographically constrained. Additionally, stream and river systems have been understudied as compared to lakes. Hence, the aim of this study was to examine the influence of DOM concentration and composition, morphological descriptors, land uses and water chemistry on THg and MeHg concentrations and the percentage of THg as MeHg (%MeHg) in 29 streams across Europe spanning from 41°N to 64 °N. THg concentrations (0.06–2.78 ng L−1) were highest in streams characterized by DOM with a high terrestrial soil signature and low nutrient content. MeHg concentrations (7.8–159 pg L−1) varied non-systematically across systems. Relationships between DOM bulk characteristics and THg and MeHg suggest that while soil derived DOM inputs control THg concentrations, autochthonous DOM (aquatically produced) and the availability of electron acceptors for Hg methylating microorganisms (e.g. sulfate) drive %MeHg and potentially MeHg concentration. Overall, these results highlight the large spatial variability in THg and MeHg concentrations at the European scale, and underscore the importance of DOM composition on mercury cycling in fluvial systems. © 2018 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112500
Appears in Collections:气候减缓与适应

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作者单位: Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish National Research Council (CSIC), Barcelona, Spain; Limnology/Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden; CNRS/ UNIV PAU & PAYS ADOUR, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Materiaux, UMR5254, MIRA, Pau, France; Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany; Chemical Analytics and Biogeochemistry, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany; Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden; Catalan Institute for Water Research (ICRA), Girona, Spain; IRSTEA, UR RiverLy, Centre de Lyon-Villeurbanne, Villeurbanne, Cedex, France; Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden; Department of Aquatic Ecosystems, Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, Bulgaria; Department of Experimental Limnology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Stechlin, Germany; Ecohydrology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany; WasserCluster Biological Station Lunz, Lunz am See, Austria; The Environmental Research Institute, North Highland College, University of Highlands and Islands, Thurso, Scotland, United Kingdom; Research Centre in Biodiversity and Genetic Resources (CIBIO), University of Porto, Porto, Portugal; Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, University of Barcelona (UB), Barcelona, Spain; Microbial Resource Management, Institute of Microbiology, University of Innsbruck, Innsbruck, Austria; River and Conservation Research, Institute of Ecology, University of Innsbruck, Innsbruck, Austria; Department of Life and Environmental Sciences, Bournemouth University, United Kingdom; University Centre Sparsholt, Winchester, United Kingdom; Department of Ecology and Environmental Sciences, Palacky University in Olomouc, Olomouc, Czech Republic

Recommended Citation:
Bravo A.G.,Kothawala D.N.,Attermeyer K.,et al. The interplay between total mercury, methylmercury and dissolved organic matter in fluvial systems: A latitudinal study across Europe[J]. Water Research,2018-01-01,144
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