Sources, Transport, and accumulation of Mercury in the northwestern Mediterranean margin sediments during the Industrial Era and influence of turbiditic events
16 pages, 8 figures, 7 tables, supplementary data https://doi.org/10.1016/j.pocean.2023.103186.-- Data availability: An EXCEL file is provided
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Elsevier
2024-01
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| Subjects: | Ensure availability and sustainable management of water and sanitation for all, |
| Online Access: | http://hdl.handle.net/10261/351742 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100001665 http://dx.doi.org/10.13039/501100011033 |
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Ensure availability and sustainable management of water and sanitation for all Ensure availability and sustainable management of water and sanitation for all |
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Ensure availability and sustainable management of water and sanitation for all Ensure availability and sustainable management of water and sanitation for all Cossa, Daniel Buscail, Roselyne Dennielou, Bernard Radakovitch, Olivier Puig, Pere Khripounoff, Alexis Boutier, Bernard Berné, Serge Sources, Transport, and accumulation of Mercury in the northwestern Mediterranean margin sediments during the Industrial Era and influence of turbiditic events |
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16 pages, 8 figures, 7 tables, supplementary data https://doi.org/10.1016/j.pocean.2023.103186.-- Data availability: An EXCEL file is provided |
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European Commission |
| author_facet |
European Commission Cossa, Daniel Buscail, Roselyne Dennielou, Bernard Radakovitch, Olivier Puig, Pere Khripounoff, Alexis Boutier, Bernard Berné, Serge |
| format |
artículo |
| topic_facet |
Ensure availability and sustainable management of water and sanitation for all |
| author |
Cossa, Daniel Buscail, Roselyne Dennielou, Bernard Radakovitch, Olivier Puig, Pere Khripounoff, Alexis Boutier, Bernard Berné, Serge |
| author_sort |
Cossa, Daniel |
| title |
Sources, Transport, and accumulation of Mercury in the northwestern Mediterranean margin sediments during the Industrial Era and influence of turbiditic events |
| title_short |
Sources, Transport, and accumulation of Mercury in the northwestern Mediterranean margin sediments during the Industrial Era and influence of turbiditic events |
| title_full |
Sources, Transport, and accumulation of Mercury in the northwestern Mediterranean margin sediments during the Industrial Era and influence of turbiditic events |
| title_fullStr |
Sources, Transport, and accumulation of Mercury in the northwestern Mediterranean margin sediments during the Industrial Era and influence of turbiditic events |
| title_full_unstemmed |
Sources, Transport, and accumulation of Mercury in the northwestern Mediterranean margin sediments during the Industrial Era and influence of turbiditic events |
| title_sort |
sources, transport, and accumulation of mercury in the northwestern mediterranean margin sediments during the industrial era and influence of turbiditic events |
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Elsevier |
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2024-01 |
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http://hdl.handle.net/10261/351742 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100001665 http://dx.doi.org/10.13039/501100011033 |
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AT cossadaniel sourcestransportandaccumulationofmercuryinthenorthwesternmediterraneanmarginsedimentsduringtheindustrialeraandinfluenceofturbiditicevents AT buscailroselyne sourcestransportandaccumulationofmercuryinthenorthwesternmediterraneanmarginsedimentsduringtheindustrialeraandinfluenceofturbiditicevents AT dennieloubernard sourcestransportandaccumulationofmercuryinthenorthwesternmediterraneanmarginsedimentsduringtheindustrialeraandinfluenceofturbiditicevents AT radakovitcholivier sourcestransportandaccumulationofmercuryinthenorthwesternmediterraneanmarginsedimentsduringtheindustrialeraandinfluenceofturbiditicevents AT puigpere sourcestransportandaccumulationofmercuryinthenorthwesternmediterraneanmarginsedimentsduringtheindustrialeraandinfluenceofturbiditicevents AT khripounoffalexis sourcestransportandaccumulationofmercuryinthenorthwesternmediterraneanmarginsedimentsduringtheindustrialeraandinfluenceofturbiditicevents AT boutierbernard sourcestransportandaccumulationofmercuryinthenorthwesternmediterraneanmarginsedimentsduringtheindustrialeraandinfluenceofturbiditicevents AT berneserge sourcestransportandaccumulationofmercuryinthenorthwesternmediterraneanmarginsedimentsduringtheindustrialeraandinfluenceofturbiditicevents |
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1794796770111258624 |
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dig-icm-es-10261-3517422024-03-26T05:30:36Z Sources, Transport, and accumulation of Mercury in the northwestern Mediterranean margin sediments during the Industrial Era and influence of turbiditic events Cossa, Daniel Buscail, Roselyne Dennielou, Bernard Radakovitch, Olivier Puig, Pere Khripounoff, Alexis Boutier, Bernard Berné, Serge European Commission Agence Nationale de la Recherche (France) Agencia Estatal de Investigación (España) Ministère de la Transition écologique et de la Cohésion des territoires (France) Ensure availability and sustainable management of water and sanitation for all 16 pages, 8 figures, 7 tables, supplementary data https://doi.org/10.1016/j.pocean.2023.103186.-- Data availability: An EXCEL file is provided Sources and pathways of the Hg accumulated in the sediments of the Gulf of Lion (GoL) and its adjacent marine areas (Northwestern Mediterranean) have been explored using sediment grab samples, sediment cores, and sediment trap samples. The main source of Hg along this margin is the Rhône River, whose suspended sediments settle mainly in the prodelta area but also along the mid-shelf, then reaching the continental rise via wave resuspension and cascading of dense shelf waters. Seaward, these riverine particles are mixed with carbonated ooze conveyed to the bottom by the biological pump. The Hg is enriched in surface sediments of the GoL with decreasing concentrations westward and seaward from the Rhône prodelta to the continental rise. Dated cores from the Rhône prodelta give access to riverine sediments deposited over the last 400 years and show that the Hg concentration time trend resembles the evolution of coal consumption in France, peaking during in the 1960s. Similar trends were observed in sediment cores collected along the GoL slope and submarine canyons along with the preservation of traces of erosion and sediment instability events. Seaward, on the continental rise, the Hg concentration distribution suggests the deposition of fine planktonic-derived material and particles episodically advected from the shelf during deep cascading pulses. Anthropogenic Hg accumulated in GoL and continental rise sediments during the Industrialized Era is ∼ 150 Mg (tons), two-thirds of which are buried in the Rhône prodelta area. Significant correlations are found between Hg and organic matter in GoL sediments, but the relationships differ between areas and are disrupted by the inputs of anthropogenic Hg and by the Hg availability in the Rhône River watershed during the pre-industrial period. The HgT availability in waters appears to be the limiting factor to the Hg enrichment of the particulate organic matter. Monomethyl mercury (MMHg), which represents on average 0.3 % of the total Hg, was positively correlated to total Hg. Their distributions suggest in situ MMHg formation and a more effective net Hg methylation for surface sediment or particles collected in traps compared with particles buried in the sedimentary column This research has been funded by Hermione project (www.eu-hermione.net), a collaborative project under the European Commission Framework Seven Program (Contract N° 226354), by the ANR (Contract N° N00014-04-1-0379), and by AEI 10.13039/501100011033 (Grant CEX2019-000928-S). Thanks are due to B. Averty who performed MMHg analyses and to F. Marco-Miralles for HgT determinations in cores KIGC and STKI. Cores TYR12, TYR20, and TYR23 have been collected during the EROS-2000 (European River Ocean System) project supported by the European Union through the Environment and Climatological and MAST Programs and grab samples and cores 94-21, 95-9A, 9519, 95-21 and I36 have been collected in the framework of the “Réseau National d'Observation” (RNO-ROCCH) a monitoring program run by Ifremer and funded by the French Ministry for the Environment (http://www.ifremer.fr/envlit/surveillance/rno.htm) Peer reviewed 2024-03-25T12:20:17Z 2024-03-25T12:20:17Z 2024-01 artículo http://purl.org/coar/resource_type/c_6501 Progress in Oceanography 220: 103186 (2024) 0079-6611 CEX2019-000928-S http://hdl.handle.net/10261/351742 10.1016/j.pocean.2023.103186 1873-4472 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100001665 http://dx.doi.org/10.13039/501100011033 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/226354 Postprint https://doi.org/10.1016/j.pocean.2023.103186 Sí open Elsevier |