Unveiling Hidden Mercury and Methylmercury Sources: The Role of Submarine Groundwater Discharge in Coastal Lagoons

12 pages, 5 figures, 1 table, supporting information https://doi.org/10.1021/acs.est.5c07191.-- The complete dataset can be downloaded at https://doi.org/10.5281/zenodo.17045205

Bibliographic Details
Authors: Lavergne, Céline, Rodríguez-Puig, Júlia, Ruiz-González, Clara, Montero Curiel, María, Casas, Gemma, Romano Gude, Daniel, Alorda-Montiel, Irene, Dordal Soriano, Júlia, Alorda-Kleinglass, Aaron, Diego-Feliu, Marc, Gilabert, Javier, Campillo de La Maza, Alex, Romera-Castillo, Cristina, Torres-Rodríguez, Natalia, Heimbürguer-Boavida, Lars-Eric, García-Orellana, Jordi, Rodellas, Valentí, Bravo, Andrea G.
Format: article
Status:Published version
Publication Date:2025
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/402356
Online Access:http://hdl.handle.net/10261/402356
Access Level:Open access
Keyword:Biogeochemistry
Mercury budget
Methylmercury
Submarine groundwater discharge
Coastal aquifer
Mar Menor
http://metadata.un.org/sdg/6
Ensure availability and sustainable management of water and sanitation for all
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dc.title.none.fl_str_mv Unveiling Hidden Mercury and Methylmercury Sources: The Role of Submarine Groundwater Discharge in Coastal Lagoons
title Unveiling Hidden Mercury and Methylmercury Sources: The Role of Submarine Groundwater Discharge in Coastal Lagoons
spellingShingle Unveiling Hidden Mercury and Methylmercury Sources: The Role of Submarine Groundwater Discharge in Coastal Lagoons
Lavergne, Céline
Biogeochemistry
Mercury budget
Methylmercury
Submarine groundwater discharge
Coastal aquifer
Mar Menor
http://metadata.un.org/sdg/6
Ensure availability and sustainable management of water and sanitation for all
title_short Unveiling Hidden Mercury and Methylmercury Sources: The Role of Submarine Groundwater Discharge in Coastal Lagoons
title_full Unveiling Hidden Mercury and Methylmercury Sources: The Role of Submarine Groundwater Discharge in Coastal Lagoons
title_fullStr Unveiling Hidden Mercury and Methylmercury Sources: The Role of Submarine Groundwater Discharge in Coastal Lagoons
title_full_unstemmed Unveiling Hidden Mercury and Methylmercury Sources: The Role of Submarine Groundwater Discharge in Coastal Lagoons
title_sort Unveiling Hidden Mercury and Methylmercury Sources: The Role of Submarine Groundwater Discharge in Coastal Lagoons
dc.creator.none.fl_str_mv Lavergne, Céline
Rodríguez-Puig, Júlia
Ruiz-González, Clara
Montero Curiel, María
Casas, Gemma
Romano Gude, Daniel
Alorda-Montiel, Irene
Dordal Soriano, Júlia
Alorda-Kleinglass, Aaron
Diego-Feliu, Marc
Gilabert, Javier
Campillo de La Maza, Alex
Romera-Castillo, Cristina
Torres-Rodríguez, Natalia
Heimbürguer-Boavida, Lars-Eric
García-Orellana, Jordi
Rodellas, Valentí
Bravo, Andrea G.
author Lavergne, Céline
author_facet Lavergne, Céline
Rodríguez-Puig, Júlia
Ruiz-González, Clara
Montero Curiel, María
Casas, Gemma
Romano Gude, Daniel
Alorda-Montiel, Irene
Dordal Soriano, Júlia
Alorda-Kleinglass, Aaron
Diego-Feliu, Marc
Gilabert, Javier
Campillo de La Maza, Alex
Romera-Castillo, Cristina
Torres-Rodríguez, Natalia
Heimbürguer-Boavida, Lars-Eric
García-Orellana, Jordi
Rodellas, Valentí
Bravo, Andrea G.
author_role author
author2 Rodríguez-Puig, Júlia
Ruiz-González, Clara
Montero Curiel, María
Casas, Gemma
Romano Gude, Daniel
Alorda-Montiel, Irene
Dordal Soriano, Júlia
Alorda-Kleinglass, Aaron
Diego-Feliu, Marc
Gilabert, Javier
Campillo de La Maza, Alex
Romera-Castillo, Cristina
Torres-Rodríguez, Natalia
Heimbürguer-Boavida, Lars-Eric
García-Orellana, Jordi
Rodellas, Valentí
Bravo, Andrea G.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación (España)
Generalitat de Catalunya
European Commission
Ministerio de Ciencia, Innovación y Universidades (España)
Fundación Séneca
Gobierno de la Región de Murcia
Ministerio de Ciencia e Innovación (España)
Generalitat de Catalunya
Agence Nationale de la Recherche (France)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Biogeochemistry
Mercury budget
Methylmercury
Submarine groundwater discharge
Coastal aquifer
Mar Menor
http://metadata.un.org/sdg/6
Ensure availability and sustainable management of water and sanitation for all
topic Biogeochemistry
Mercury budget
Methylmercury
Submarine groundwater discharge
Coastal aquifer
Mar Menor
http://metadata.un.org/sdg/6
Ensure availability and sustainable management of water and sanitation for all
description 12 pages, 5 figures, 1 table, supporting information https://doi.org/10.1021/acs.est.5c07191.-- The complete dataset can be downloaded at https://doi.org/10.5281/zenodo.17045205
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/402356
url http://hdl.handle.net/10261/402356
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/MICINN//PID2019-111722RJ-I00
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info:eu-repo/grantAgreement/EC/H2020/860497
https://doi.org/10.1021/acs.est.5c07191

dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
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spelling Unveiling Hidden Mercury and Methylmercury Sources: The Role of Submarine Groundwater Discharge in Coastal LagoonsLavergne, CélineRodríguez-Puig, JúliaRuiz-González, ClaraMontero Curiel, MaríaCasas, GemmaRomano Gude, DanielAlorda-Montiel, IreneDordal Soriano, JúliaAlorda-Kleinglass, AaronDiego-Feliu, MarcGilabert, JavierCampillo de La Maza, AlexRomera-Castillo, CristinaTorres-Rodríguez, NataliaHeimbürguer-Boavida, Lars-EricGarcía-Orellana, JordiRodellas, ValentíBravo, Andrea G.BiogeochemistryMercury budgetMethylmercurySubmarine groundwater dischargeCoastal aquiferMar Menorhttp://metadata.un.org/sdg/6Ensure availability and sustainable management of water and sanitation for all12 pages, 5 figures, 1 table, supporting information https://doi.org/10.1021/acs.est.5c07191.-- The complete dataset can be downloaded at https://doi.org/10.5281/zenodo.17045205Mercury loads from Submarine Groundwater Discharge (SGD) may represent an overlooked source of methylmercury (MeHg) to the ocean, affecting human and ecosystem health. The SGD process involves the flow of fresh, saline, or mixed groundwater from coastal aquifers into the oceans classified in different components. Existing studies rarely report the fluxes supplied by the different SGD components; therefore, the relevance of SGD as a source of mercury remains unclear. We aimed to quantify SGD-driven mercury/methylmercury fluxes to the coast, focusing on the largest coastal lagoon in the western Mediterranean. We measured total dissolved mercury and MeHg in surficial and porewaters during the summer and autumn. Porewaters were enriched in total dissolved Hg and MeHg compared to the lagoon. Lagoon shore waters and porewaters with a high concentration of labile dissolved organic matter were prone to MeHg formation and thus had higher MeHg concentrations. The mercury input through SGD to the Mar Menor lagoon (4300 mmol year–1) was similar to atmospheric deposition and 1 order of magnitude greater than the stream input. Among different components of the SGD, long-scale lagoon water recirculation dominated. These findings have substantial implications for the regional Hg budget and raise awareness of the importance of considering the different SGD components for an accurate estimation of SGD-based Hg input to the coastal oceanThis research was funded by the Marie Curie Postdoctoral Fellowship HORIZON-MSCA-2022-PF-01 project grant number 101106387. The research was also supported by MerTerMar (PID2019-111722RJ-I00), the OPAL (PID2019-110311RB-C21), MINIOM (PID2022-142480NB-I00), WINDERS (TED2021-130710B-I00) funded by the Spanish Ministry of Science Innovation and Universities (MICINN) and by European Union NextGenerationEU/PRTR. This study also formed part of the THINKINAZUL program and was supported by MICIU with funding from European Union NextGenerationEU (PRTR-C17.I1) and by Fundación Séneca with funding from Comunidad Autónoma Región de Murcia (CARM) with additional funds also provided by the D.G. Mar Menor (CARM). C. Ruiz-González. was further supported by a RyC contract (RYC2019-026758-I). A. G. Bravo was supported by RyC contract (RYC2019-028400-I). J. Rodriguez-Puig acknowledges financial support from FPU grant FPU20/01369, and the institutional support of the María de Maeztu Programme (CEX2019-000940-M) for Units of Excellence of the Spanish Ministry of Science and Innovation. M. Montero-Curiel acknowledges the funding from the FPI grant (PRE2020-096147), with the institutional support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S-20-5). D. Romano-Gude acknowledges the funding from the FPI grant (PRE2020-095468), with the institutional support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S-20-2). I. Alorda-Montiel acknowledges financial support from FPI grant PRE2020-092343. M. Diego-Feliu acknowledges financial support from grant JDC2022-050316-I funded by MCIN/AEI/10.13039/501100011033 and by the European Union - NextGenerationEU/PRTR, and support from the Grup d’Hidrologia Subterrània - GHS (Universitat Politècnica de Catalunya) funded by grant 2021-SGR 00609 from Generalitat de Catalunya. L-E. Heimbürger-Boavida acknowledges financial support from the French National Research Agency (ANR) through the project HydrOThermal Mercury (ANR-21-CE34-0026), and from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie GMOSTrain, grant agreement no. 860497This work acknowledges the Severo Ochoa Centre of Excellence accreditation (CEX2024-001494-S) funded by AEI 10.13039/501100011033. Support from the Direcció General de Recerca from Generalitat de Catalunya (2021-SGR-00640) through the Marine and Environmental Biogeosciences Research Group-MERS is also acknowledgedPeer reviewedAmerican Chemical SocietyAgencia Estatal de Investigación (España)Generalitat de CatalunyaEuropean CommissionMinisterio de Ciencia, Innovación y Universidades (España)Fundación SénecaGobierno de la Región de MurciaMinisterio de Ciencia e Innovación (España)Generalitat de CatalunyaAgence Nationale de la Recherche (France)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/402356reponame:DIGITAL.CSIC. 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