Mediterranean Mercury Assessment 2022: An Updated Budget, Health Consequences, and Research Perspectives
23 pages, 7 figures, 1 table, supporting Information https://doi.org/10.1021/acs.est.1c03044 Mercury (Hg) and especially its methylated species (MeHg) are toxic chemicals that contaminate humans via the consumption of seafood. The most recent UNEP Global Mercury Assessment stressed that Mediterranea...
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American Chemical Society
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Online Access: | http://hdl.handle.net/10261/268701 https://doi.org/10.1021/acs.est.1c03044 https://doi.org/10.13039/501100011033 https://doi.org/10.13039/501100004794 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100000781 |
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ftcsic:oai:digital.csic.es:10261/268701 2024-02-11T10:06:46+01:00 Mediterranean Mercury Assessment 2022: An Updated Budget, Health Consequences, and Research Perspectives Cossa, Daniel Knoery, Joël Banaru, Daniela Harmelin-Vivien, M. Sonke, Jeroen E. Hedgecock, Ian M. Bravo, Andrea G. Rosati, Ginevra Canu, Donata Horvat, Milena Sprovieri, Francesca Pirrone, Nicola Heimbürger-Boavida, Lars-Eric European Commission European Research Council Centre National de la Recherche Scientifique (France) Agencia Estatal de Investigación (España) 2022-03 http://hdl.handle.net/10261/268701 https://doi.org/10.1021/acs.est.1c03044 https://doi.org/10.13039/501100011033 https://doi.org/10.13039/501100004794 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100000781 en eng American Chemical Society #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/689443 Preprint https://doi.org/10.1021/acs.est.1c03044 Sí Environmental Science and Technology 56(7): 3840-3862 (2022) 0013-936X CEX2019-000928-S http://hdl.handle.net/10261/268701 doi:10.1021/acs.est.1c03044 1520-5851 http://dx.doi.org/10.13039/501100011033 http://dx.doi.org/10.13039/501100004794 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100000781 open Mediterranean Mercury Hg MeHg Earth System Models artículo http://purl.org/coar/resource_type/c_6501 2022 ftcsic https://doi.org/10.1021/acs.est.1c0304410.13039/50110001103310.13039/50110000479410.13039/50110000078010.13039/501100000781 2024-01-16T11:23:58Z 23 pages, 7 figures, 1 table, supporting Information https://doi.org/10.1021/acs.est.1c03044 Mercury (Hg) and especially its methylated species (MeHg) are toxic chemicals that contaminate humans via the consumption of seafood. The most recent UNEP Global Mercury Assessment stressed that Mediterranean populations have higher Hg levels than people elsewhere in Europe. The present Critical Review updates current knowledge on the sources, biogeochemical cycling, and mass balance of Hg in the Mediterranean and identifies perspectives for future research especially in the context of global change. Concentrations of Hg in the Western Mediterranean average 0.86 ± 0.27 pmol L–1 in the upper water layer and 1.02 ± 0.12 pmol L–1 in intermediate and deep waters. In the Eastern Mediterranean, Hg measurements are in the same range but are too few to determine any consistent oceanographical pattern. The Mediterranean waters have a high methylation capacity, with MeHg representing up to 86% of the total Hg, and constitute a source of MeHg for the adjacent North Atlantic Ocean. The highest MeHg concentrations are associated with low oxygen water masses, suggesting a microbiological control on Hg methylation, consistent with the identification of hgcA-like genes in Mediterranean waters. MeHg concentrations are twice as high in the waters of the Western Basin compared to the ultra-oligotrophic Eastern Basin waters. This difference appears to be transferred through the food webs and the Hg content in predators to be ultimately controlled by MeHg concentrations of the waters of their foraging zones. Many Mediterranean top-predatory fish still exceed European Union regulatory Hg thresholds. This emphasizes the necessity of monitoring the exposure of Mediterranean populations, to formulate adequate mitigation strategies and recommendations, without advising against seafood consumption. This review also points out other insufficiencies of knowledge of Hg cycling in the Mediterranean Sea, including temporal variations in air–sea ... Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Western Basin Environmental Science & Technology 56 7 3840 3862 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Mediterranean Mercury Hg MeHg Earth System Models |
spellingShingle |
Mediterranean Mercury Hg MeHg Earth System Models Cossa, Daniel Knoery, Joël Banaru, Daniela Harmelin-Vivien, M. Sonke, Jeroen E. Hedgecock, Ian M. Bravo, Andrea G. Rosati, Ginevra Canu, Donata Horvat, Milena Sprovieri, Francesca Pirrone, Nicola Heimbürger-Boavida, Lars-Eric Mediterranean Mercury Assessment 2022: An Updated Budget, Health Consequences, and Research Perspectives |
topic_facet |
Mediterranean Mercury Hg MeHg Earth System Models |
description |
23 pages, 7 figures, 1 table, supporting Information https://doi.org/10.1021/acs.est.1c03044 Mercury (Hg) and especially its methylated species (MeHg) are toxic chemicals that contaminate humans via the consumption of seafood. The most recent UNEP Global Mercury Assessment stressed that Mediterranean populations have higher Hg levels than people elsewhere in Europe. The present Critical Review updates current knowledge on the sources, biogeochemical cycling, and mass balance of Hg in the Mediterranean and identifies perspectives for future research especially in the context of global change. Concentrations of Hg in the Western Mediterranean average 0.86 ± 0.27 pmol L–1 in the upper water layer and 1.02 ± 0.12 pmol L–1 in intermediate and deep waters. In the Eastern Mediterranean, Hg measurements are in the same range but are too few to determine any consistent oceanographical pattern. The Mediterranean waters have a high methylation capacity, with MeHg representing up to 86% of the total Hg, and constitute a source of MeHg for the adjacent North Atlantic Ocean. The highest MeHg concentrations are associated with low oxygen water masses, suggesting a microbiological control on Hg methylation, consistent with the identification of hgcA-like genes in Mediterranean waters. MeHg concentrations are twice as high in the waters of the Western Basin compared to the ultra-oligotrophic Eastern Basin waters. This difference appears to be transferred through the food webs and the Hg content in predators to be ultimately controlled by MeHg concentrations of the waters of their foraging zones. Many Mediterranean top-predatory fish still exceed European Union regulatory Hg thresholds. This emphasizes the necessity of monitoring the exposure of Mediterranean populations, to formulate adequate mitigation strategies and recommendations, without advising against seafood consumption. This review also points out other insufficiencies of knowledge of Hg cycling in the Mediterranean Sea, including temporal variations in air–sea ... |
author2 |
European Commission European Research Council Centre National de la Recherche Scientifique (France) Agencia Estatal de Investigación (España) |
format |
Article in Journal/Newspaper |
author |
Cossa, Daniel Knoery, Joël Banaru, Daniela Harmelin-Vivien, M. Sonke, Jeroen E. Hedgecock, Ian M. Bravo, Andrea G. Rosati, Ginevra Canu, Donata Horvat, Milena Sprovieri, Francesca Pirrone, Nicola Heimbürger-Boavida, Lars-Eric |
author_facet |
Cossa, Daniel Knoery, Joël Banaru, Daniela Harmelin-Vivien, M. Sonke, Jeroen E. Hedgecock, Ian M. Bravo, Andrea G. Rosati, Ginevra Canu, Donata Horvat, Milena Sprovieri, Francesca Pirrone, Nicola Heimbürger-Boavida, Lars-Eric |
author_sort |
Cossa, Daniel |
title |
Mediterranean Mercury Assessment 2022: An Updated Budget, Health Consequences, and Research Perspectives |
title_short |
Mediterranean Mercury Assessment 2022: An Updated Budget, Health Consequences, and Research Perspectives |
title_full |
Mediterranean Mercury Assessment 2022: An Updated Budget, Health Consequences, and Research Perspectives |
title_fullStr |
Mediterranean Mercury Assessment 2022: An Updated Budget, Health Consequences, and Research Perspectives |
title_full_unstemmed |
Mediterranean Mercury Assessment 2022: An Updated Budget, Health Consequences, and Research Perspectives |
title_sort |
mediterranean mercury assessment 2022: an updated budget, health consequences, and research perspectives |
publisher |
American Chemical Society |
publishDate |
2022 |
url |
http://hdl.handle.net/10261/268701 https://doi.org/10.1021/acs.est.1c03044 https://doi.org/10.13039/501100011033 https://doi.org/10.13039/501100004794 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100000781 |
geographic |
Western Basin |
geographic_facet |
Western Basin |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/689443 Preprint https://doi.org/10.1021/acs.est.1c03044 Sí Environmental Science and Technology 56(7): 3840-3862 (2022) 0013-936X CEX2019-000928-S http://hdl.handle.net/10261/268701 doi:10.1021/acs.est.1c03044 1520-5851 http://dx.doi.org/10.13039/501100011033 http://dx.doi.org/10.13039/501100004794 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100000781 |
op_rights |
open |
op_doi |
https://doi.org/10.1021/acs.est.1c0304410.13039/50110001103310.13039/50110000479410.13039/50110000078010.13039/501100000781 |
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Environmental Science & Technology |
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56 |
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7 |
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3840 |
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3862 |
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