Arctic mercury cycling
Anthropogenic mercury (Hg) emissions have driven marked increases in Arctic Hg levels, which are now being impacted by regional warming, with uncertain ecological consequences. This Review presents a comprehensive assessment of the present-day total Hg mass balance in the Arctic. Over 98% of atmosph...
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fthzgzmk:oai:publications.hereon.de:50404 2023-06-11T04:07:45+02:00 Arctic mercury cycling Dastoor, A. Angot, H. Bieser, J. Christensen, J.H. Douglas, T.A. Heimbürger-Boavida, L.-E. Jiskra, M. Mason, R.P. McLagan, D.S. Obrist, D. Outridge, P.M. Petrova, M.V. Ryjkov, A. St. Pierre, K.A. Schartup, A.T. Soerensen, A.L. Toyota, K. Travnikov, O. Wilson, S.J. Zdanowicz, C. 2022 https://publications.hereon.de/id/50404 https://publications.hzg.de/id/50404 en eng Nature Research https://dx.doi.org/10.1038/s43017-022-00269-w urn:issn:2662-138X https://publications.hereon.de/id/50404 https://publications.hzg.de/id/50404 info:eu-repo/semantics/closedAccess issn:2662-138X Dastoor, A.; Angot, H.; Bieser, J.; Christensen, J.H.; Douglas, T.A.; Heimbürger-Boavida, L.-E.; Jiskra, M.; Mason, R.P.; McLagan, D.S.; Obrist, D.; Outridge, P.M.; Petrova, M.V.; Ryjkov, A.; St. Pierre, K.A.; Schartup, A.T.; Soerensen, A.L.; Toyota, K.; Travnikov, O.; Wilson, S.J.; Zdanowicz, C.: Arctic mercury cycling. In: Nature Reviews. Earth & Environment . Vol. 3 (2022) 4, 270 - 286. (DOI: /10.1038/s43017-022-00269-w) info:eu-repo/semantics/article Zeitschrift Artikel 2022 fthzgzmk https://doi.org/10.1038/s43017-022-00269-w 2023-05-28T23:25:27Z Anthropogenic mercury (Hg) emissions have driven marked increases in Arctic Hg levels, which are now being impacted by regional warming, with uncertain ecological consequences. This Review presents a comprehensive assessment of the present-day total Hg mass balance in the Arctic. Over 98% of atmospheric Hg is emitted outside the region and is transported to the Arctic via long-range air and ocean transport. Around two thirds of this Hg is deposited in terrestrial ecosystems, where it predominantly accumulates in soils via vegetation uptake. Rivers and coastal erosion transfer about 80 Mg year−1 of terrestrial Hg to the Arctic Ocean, in approximate balance with modelled net terrestrial Hg deposition in the region. The revised Arctic Ocean Hg mass balance suggests net atmospheric Hg deposition to the ocean and that Hg burial in inner-shelf sediments is underestimated (up to >100%), needing seasonal observations of sediment-ocean Hg exchange. Terrestrial Hg mobilization pathways from soils and the cryosphere (permafrost, ice, snow and glaciers) remain uncertain. Improved soil, snowpack and glacial Hg inventories, transfer mechanisms of riverine Hg releases under accelerated glacier and soil thaw, coupled atmosphere–terrestrial modelling and monitoring of Hg in sensitive ecosystems such as fjords can help to anticipate impacts on downstream Arctic ecosystems. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Ice permafrost Hereon Publications (Helmholtz-Zentrum) Arctic Arctic Ocean Nature Reviews Earth & Environment 3 4 270 286 |
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Hereon Publications (Helmholtz-Zentrum) |
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fthzgzmk |
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English |
description |
Anthropogenic mercury (Hg) emissions have driven marked increases in Arctic Hg levels, which are now being impacted by regional warming, with uncertain ecological consequences. This Review presents a comprehensive assessment of the present-day total Hg mass balance in the Arctic. Over 98% of atmospheric Hg is emitted outside the region and is transported to the Arctic via long-range air and ocean transport. Around two thirds of this Hg is deposited in terrestrial ecosystems, where it predominantly accumulates in soils via vegetation uptake. Rivers and coastal erosion transfer about 80 Mg year−1 of terrestrial Hg to the Arctic Ocean, in approximate balance with modelled net terrestrial Hg deposition in the region. The revised Arctic Ocean Hg mass balance suggests net atmospheric Hg deposition to the ocean and that Hg burial in inner-shelf sediments is underestimated (up to >100%), needing seasonal observations of sediment-ocean Hg exchange. Terrestrial Hg mobilization pathways from soils and the cryosphere (permafrost, ice, snow and glaciers) remain uncertain. Improved soil, snowpack and glacial Hg inventories, transfer mechanisms of riverine Hg releases under accelerated glacier and soil thaw, coupled atmosphere–terrestrial modelling and monitoring of Hg in sensitive ecosystems such as fjords can help to anticipate impacts on downstream Arctic ecosystems. |
format |
Article in Journal/Newspaper |
author |
Dastoor, A. Angot, H. Bieser, J. Christensen, J.H. Douglas, T.A. Heimbürger-Boavida, L.-E. Jiskra, M. Mason, R.P. McLagan, D.S. Obrist, D. Outridge, P.M. Petrova, M.V. Ryjkov, A. St. Pierre, K.A. Schartup, A.T. Soerensen, A.L. Toyota, K. Travnikov, O. Wilson, S.J. Zdanowicz, C. |
spellingShingle |
Dastoor, A. Angot, H. Bieser, J. Christensen, J.H. Douglas, T.A. Heimbürger-Boavida, L.-E. Jiskra, M. Mason, R.P. McLagan, D.S. Obrist, D. Outridge, P.M. Petrova, M.V. Ryjkov, A. St. Pierre, K.A. Schartup, A.T. Soerensen, A.L. Toyota, K. Travnikov, O. Wilson, S.J. Zdanowicz, C. Arctic mercury cycling |
author_facet |
Dastoor, A. Angot, H. Bieser, J. Christensen, J.H. Douglas, T.A. Heimbürger-Boavida, L.-E. Jiskra, M. Mason, R.P. McLagan, D.S. Obrist, D. Outridge, P.M. Petrova, M.V. Ryjkov, A. St. Pierre, K.A. Schartup, A.T. Soerensen, A.L. Toyota, K. Travnikov, O. Wilson, S.J. Zdanowicz, C. |
author_sort |
Dastoor, A. |
title |
Arctic mercury cycling |
title_short |
Arctic mercury cycling |
title_full |
Arctic mercury cycling |
title_fullStr |
Arctic mercury cycling |
title_full_unstemmed |
Arctic mercury cycling |
title_sort |
arctic mercury cycling |
publisher |
Nature Research |
publishDate |
2022 |
url |
https://publications.hereon.de/id/50404 https://publications.hzg.de/id/50404 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Ice permafrost |
genre_facet |
Arctic Arctic Arctic Ocean Ice permafrost |
op_source |
issn:2662-138X Dastoor, A.; Angot, H.; Bieser, J.; Christensen, J.H.; Douglas, T.A.; Heimbürger-Boavida, L.-E.; Jiskra, M.; Mason, R.P.; McLagan, D.S.; Obrist, D.; Outridge, P.M.; Petrova, M.V.; Ryjkov, A.; St. Pierre, K.A.; Schartup, A.T.; Soerensen, A.L.; Toyota, K.; Travnikov, O.; Wilson, S.J.; Zdanowicz, C.: Arctic mercury cycling. In: Nature Reviews. Earth & Environment . Vol. 3 (2022) 4, 270 - 286. (DOI: /10.1038/s43017-022-00269-w) |
op_relation |
https://dx.doi.org/10.1038/s43017-022-00269-w urn:issn:2662-138X https://publications.hereon.de/id/50404 https://publications.hzg.de/id/50404 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1038/s43017-022-00269-w |
container_title |
Nature Reviews Earth & Environment |
container_volume |
3 |
container_issue |
4 |
container_start_page |
270 |
op_container_end_page |
286 |
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1768380900527046656 |