A vegetation control on seasonal variations in global atmospheric mercury concentrations
International audience Anthropogenic mercury emissions are transported through the atmosphere as gaseous elemental mercury (Hg(0)) before they are deposited to Earth’s surface. Strong seasonality in atmospheric Hg(0) concentrations in the Northern Hemisphere has been explained by two factors: anthro...
Published in: | Nature Geoscience |
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Main Authors: | , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2018
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Online Access: | https://cea.hal.science/cea-01882793 https://cea.hal.science/cea-01882793/document https://cea.hal.science/cea-01882793/file/YZA28.pdf https://doi.org/10.1038/s41561-018-0078-8 |
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Open Polar |
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HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
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ftceafr |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Jiskra, Martin Sonke, Jeroen E. Obrist, Daniel Bieser, Johannes Ebinghaus, Ralf Myhre, Cathrine Lund Pfaffhuber, Katrine Aspmo Wängberg, Ingvar Kyllönen, Katriina Worthy, Doug Martin, Lynwill G. Labuschagne, Casper Mkololo, Thumeka Ramonet, Michel Magand, Olivier Dommergue, Aurélien A vegetation control on seasonal variations in global atmospheric mercury concentrations |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Anthropogenic mercury emissions are transported through the atmosphere as gaseous elemental mercury (Hg(0)) before they are deposited to Earth’s surface. Strong seasonality in atmospheric Hg(0) concentrations in the Northern Hemisphere has been explained by two factors: anthropogenic Hg(0) emissions are thought to peak in winter due to higher energy consumption, and atmospheric oxidation rates of Hg(0) are faster in summer. Oxidation-driven Hg(0) seasonality should be equally pronounced in the Southern Hemisphere, which is inconsistent with observations of constant year-round Hg(0) levels. Here, we assess the role of Hg(0) uptake by vegetation as an alternative mechanism for driving Hg(0) seasonality. We find that at terrestrial sites in the Northern Hemisphere, Hg(0) co-varies with CO$_2$, which is known to exhibit a minimum in summer when CO$_2$ is assimilated by vegetation. The amplitude of seasonal oscillations in the atmospheric Hg(0) concentration increases with latitude and is larger at inland terrestrial sites than coastal sites. Using satellite data, we find that the photosynthetic activity of vegetation correlates with Hg(0) levels at individual sites and across continents. We suggest that terrestrial vegetation acts as a global Hg(0) pump, which can contribute to seasonal variations of atmospheric Hg(0), and that decreasing Hg(0) levels in the Northern Hemisphere over the past 20 years can be partly attributed to increased terrestrial net primary production. |
author2 |
Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Université de Bâle = University of Basel = Basel Universität (Unibas) University of Massachusetts Lowell (UMass Lowell) University of Massachusetts System (UMASS) Helmholtz-Zentrum Geesthacht (GKSS) Norwegian Institute for Air Research (NILU) Swedish Environmental Research Institute (IVL) Finnish Meteorological Institute (FMI) Climate Research Division Toronto Environment and Climate Change Canada (ECCC) South African Weather Service (SAWS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) ICOS-RAMCES (ICOS-RAMCES) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) European Project: 265113,EC:FP7:ENV,FP7-ENV-2010,GMOS(2010) European Project: 657195,H2020,H2020-MSCA-IF-2014,MEROXRE(2015) European Project: 258537,EC:FP7:ERC,ERC-2010-StG_20091028,MERCURY ISOTOPES(2010) |
format |
Article in Journal/Newspaper |
author |
Jiskra, Martin Sonke, Jeroen E. Obrist, Daniel Bieser, Johannes Ebinghaus, Ralf Myhre, Cathrine Lund Pfaffhuber, Katrine Aspmo Wängberg, Ingvar Kyllönen, Katriina Worthy, Doug Martin, Lynwill G. Labuschagne, Casper Mkololo, Thumeka Ramonet, Michel Magand, Olivier Dommergue, Aurélien |
author_facet |
Jiskra, Martin Sonke, Jeroen E. Obrist, Daniel Bieser, Johannes Ebinghaus, Ralf Myhre, Cathrine Lund Pfaffhuber, Katrine Aspmo Wängberg, Ingvar Kyllönen, Katriina Worthy, Doug Martin, Lynwill G. Labuschagne, Casper Mkololo, Thumeka Ramonet, Michel Magand, Olivier Dommergue, Aurélien |
author_sort |
Jiskra, Martin |
title |
A vegetation control on seasonal variations in global atmospheric mercury concentrations |
title_short |
A vegetation control on seasonal variations in global atmospheric mercury concentrations |
title_full |
A vegetation control on seasonal variations in global atmospheric mercury concentrations |
title_fullStr |
A vegetation control on seasonal variations in global atmospheric mercury concentrations |
title_full_unstemmed |
A vegetation control on seasonal variations in global atmospheric mercury concentrations |
title_sort |
vegetation control on seasonal variations in global atmospheric mercury concentrations |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://cea.hal.science/cea-01882793 https://cea.hal.science/cea-01882793/document https://cea.hal.science/cea-01882793/file/YZA28.pdf https://doi.org/10.1038/s41561-018-0078-8 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
ISSN: 1752-0894 Nature Geoscience https://cea.hal.science/cea-01882793 Nature Geoscience, 2018, 11 (4), pp.244-250. ⟨10.1038/s41561-018-0078-8⟩ |
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op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41561-018-0078-8 |
container_title |
Nature Geoscience |
container_volume |
11 |
container_issue |
4 |
container_start_page |
244 |
op_container_end_page |
250 |
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ftceafr:oai:HAL:cea-01882793v1 2024-09-15T17:51:47+00:00 A vegetation control on seasonal variations in global atmospheric mercury concentrations Jiskra, Martin Sonke, Jeroen E. Obrist, Daniel Bieser, Johannes Ebinghaus, Ralf Myhre, Cathrine Lund Pfaffhuber, Katrine Aspmo Wängberg, Ingvar Kyllönen, Katriina Worthy, Doug Martin, Lynwill G. Labuschagne, Casper Mkololo, Thumeka Ramonet, Michel Magand, Olivier Dommergue, Aurélien Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Université de Bâle = University of Basel = Basel Universität (Unibas) University of Massachusetts Lowell (UMass Lowell) University of Massachusetts System (UMASS) Helmholtz-Zentrum Geesthacht (GKSS) Norwegian Institute for Air Research (NILU) Swedish Environmental Research Institute (IVL) Finnish Meteorological Institute (FMI) Climate Research Division Toronto Environment and Climate Change Canada (ECCC) South African Weather Service (SAWS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) ICOS-RAMCES (ICOS-RAMCES) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) European Project: 265113,EC:FP7:ENV,FP7-ENV-2010,GMOS(2010) European Project: 657195,H2020,H2020-MSCA-IF-2014,MEROXRE(2015) European Project: 258537,EC:FP7:ERC,ERC-2010-StG_20091028,MERCURY ISOTOPES(2010) 2018 https://cea.hal.science/cea-01882793 https://cea.hal.science/cea-01882793/document https://cea.hal.science/cea-01882793/file/YZA28.pdf https://doi.org/10.1038/s41561-018-0078-8 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41561-018-0078-8 info:eu-repo/grantAgreement/EC/FP7/265113/EU/Global Mercury Observation System/GMOS info:eu-repo/grantAgreement//657195/EU/Understanding the fate of Arctic atmospheric mercury (Hg) deposition – A Hg stable isotope investigation of redox processes and Hg re-emissions/MEROXRE info:eu-repo/grantAgreement/EC/FP7/258537/EU/Exploring the isotopic dimension of the global mercury cycle/MERCURY ISOTOPES cea-01882793 https://cea.hal.science/cea-01882793 https://cea.hal.science/cea-01882793/document https://cea.hal.science/cea-01882793/file/YZA28.pdf doi:10.1038/s41561-018-0078-8 info:eu-repo/semantics/OpenAccess ISSN: 1752-0894 Nature Geoscience https://cea.hal.science/cea-01882793 Nature Geoscience, 2018, 11 (4), pp.244-250. ⟨10.1038/s41561-018-0078-8⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2018 ftceafr https://doi.org/10.1038/s41561-018-0078-8 2024-07-22T13:23:40Z International audience Anthropogenic mercury emissions are transported through the atmosphere as gaseous elemental mercury (Hg(0)) before they are deposited to Earth’s surface. Strong seasonality in atmospheric Hg(0) concentrations in the Northern Hemisphere has been explained by two factors: anthropogenic Hg(0) emissions are thought to peak in winter due to higher energy consumption, and atmospheric oxidation rates of Hg(0) are faster in summer. Oxidation-driven Hg(0) seasonality should be equally pronounced in the Southern Hemisphere, which is inconsistent with observations of constant year-round Hg(0) levels. Here, we assess the role of Hg(0) uptake by vegetation as an alternative mechanism for driving Hg(0) seasonality. We find that at terrestrial sites in the Northern Hemisphere, Hg(0) co-varies with CO$_2$, which is known to exhibit a minimum in summer when CO$_2$ is assimilated by vegetation. The amplitude of seasonal oscillations in the atmospheric Hg(0) concentration increases with latitude and is larger at inland terrestrial sites than coastal sites. Using satellite data, we find that the photosynthetic activity of vegetation correlates with Hg(0) levels at individual sites and across continents. We suggest that terrestrial vegetation acts as a global Hg(0) pump, which can contribute to seasonal variations of atmospheric Hg(0), and that decreasing Hg(0) levels in the Northern Hemisphere over the past 20 years can be partly attributed to increased terrestrial net primary production. Article in Journal/Newspaper Arctic HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Nature Geoscience 11 4 244 250 |