Springtime Accumulation of Atmospheric Mercury in Polar Ecosystems
Mercury and many of its compounds behave exceptionally in the environment due to their volatility, capability for methylation, and subsequent biomagnification in contrast with most of the other heavy metals. Long-range atmospheric transport of elemental mercury, its transformation to more toxic methy...
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fthzgzmk:oai:publications.hereon.de:25135 2023-06-11T04:05:18+02:00 Springtime Accumulation of Atmospheric Mercury in Polar Ecosystems Ebinghaus, R. Temme, C. Lindberg, S. Scott, K. 2004 https://publications.hereon.de/id/25135 https://publications.hzg.de/id/25135 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2004/Ebinghaus-journdephy4.pdf en eng EDP Sciences http://dx.doi.org/10.1051/jp4:2004121013 urn:issn:1155-4339 https://publications.hereon.de/id/25135 https://publications.hzg.de/id/25135 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2004/Ebinghaus-journdephy4.pdf info:eu-repo/semantics/openAccess open_access oa_gruen issn:1155-4339 Ebinghaus, R.; Temme, C.; Lindberg, S.; Scott, K.: Springtime Accumulation of Atmospheric Mercury in Polar Ecosystems. In: Journal de Physique 4 . Vol. 121 (2004) 195 - 208. (DOI:10.1051/jp4:2004121013) info:eu-repo/classification/ddc/551 info:eu-repo/semantics/article Zeitschrift Artikel 2004 fthzgzmk https://doi.org/10.1051/jp4:2004121013 2023-05-28T23:22:34Z Mercury and many of its compounds behave exceptionally in the environment due to their volatility, capability for methylation, and subsequent biomagnification in contrast with most of the other heavy metals. Long-range atmospheric transport of elemental mercury, its transformation to more toxic methylmercury compounds, the ability to undergo photochemical reactions and their bioaccumulation in the aquatic food chain have made it a subject of global research activities. Atmospheric Mercury Depletion Events (AMDEs) during polar springtime have been experimentally observed in the Arctic and in the Antarctic. During these events Hg0 and ozone concentrations are significantly depleted and well correlated, whereas concentrations of reactive gaseous mercury species (RGM) simultaneously increase. The main reaction mechanism and corresponding chemical and physical properties of involved species in polar regions are summarized in this work. Hg0 isremoved from the atmosphere and deposited onto the underlying surface snow. This paper focused on the fast, photochemically driven, oxidation of boundary-layer Hg0, the influence of reactive halogen chemistry, and the resultant net input of mercury into the polar ecosystem during and after polar springtime. Several estimates of the size of the Arctic sink for newly deposited Hg range from ≈ 100 – 300 T/y, while estimates of the Antarctic sink are far more uncertain. The role of re-emission of elemental mercury from the snow surface is critically discussed. Article in Journal/Newspaper Antarc* Antarctic Arctic Hereon Publications (Helmholtz-Zentrum) Antarctic Arctic The Antarctic |
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Hereon Publications (Helmholtz-Zentrum) |
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language |
English |
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info:eu-repo/classification/ddc/551 |
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info:eu-repo/classification/ddc/551 Ebinghaus, R. Temme, C. Lindberg, S. Scott, K. Springtime Accumulation of Atmospheric Mercury in Polar Ecosystems |
topic_facet |
info:eu-repo/classification/ddc/551 |
description |
Mercury and many of its compounds behave exceptionally in the environment due to their volatility, capability for methylation, and subsequent biomagnification in contrast with most of the other heavy metals. Long-range atmospheric transport of elemental mercury, its transformation to more toxic methylmercury compounds, the ability to undergo photochemical reactions and their bioaccumulation in the aquatic food chain have made it a subject of global research activities. Atmospheric Mercury Depletion Events (AMDEs) during polar springtime have been experimentally observed in the Arctic and in the Antarctic. During these events Hg0 and ozone concentrations are significantly depleted and well correlated, whereas concentrations of reactive gaseous mercury species (RGM) simultaneously increase. The main reaction mechanism and corresponding chemical and physical properties of involved species in polar regions are summarized in this work. Hg0 isremoved from the atmosphere and deposited onto the underlying surface snow. This paper focused on the fast, photochemically driven, oxidation of boundary-layer Hg0, the influence of reactive halogen chemistry, and the resultant net input of mercury into the polar ecosystem during and after polar springtime. Several estimates of the size of the Arctic sink for newly deposited Hg range from ≈ 100 – 300 T/y, while estimates of the Antarctic sink are far more uncertain. The role of re-emission of elemental mercury from the snow surface is critically discussed. |
format |
Article in Journal/Newspaper |
author |
Ebinghaus, R. Temme, C. Lindberg, S. Scott, K. |
author_facet |
Ebinghaus, R. Temme, C. Lindberg, S. Scott, K. |
author_sort |
Ebinghaus, R. |
title |
Springtime Accumulation of Atmospheric Mercury in Polar Ecosystems |
title_short |
Springtime Accumulation of Atmospheric Mercury in Polar Ecosystems |
title_full |
Springtime Accumulation of Atmospheric Mercury in Polar Ecosystems |
title_fullStr |
Springtime Accumulation of Atmospheric Mercury in Polar Ecosystems |
title_full_unstemmed |
Springtime Accumulation of Atmospheric Mercury in Polar Ecosystems |
title_sort |
springtime accumulation of atmospheric mercury in polar ecosystems |
publisher |
EDP Sciences |
publishDate |
2004 |
url |
https://publications.hereon.de/id/25135 https://publications.hzg.de/id/25135 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2004/Ebinghaus-journdephy4.pdf |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_source |
issn:1155-4339 Ebinghaus, R.; Temme, C.; Lindberg, S.; Scott, K.: Springtime Accumulation of Atmospheric Mercury in Polar Ecosystems. In: Journal de Physique 4 . Vol. 121 (2004) 195 - 208. (DOI:10.1051/jp4:2004121013) |
op_relation |
http://dx.doi.org/10.1051/jp4:2004121013 urn:issn:1155-4339 https://publications.hereon.de/id/25135 https://publications.hzg.de/id/25135 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2004/Ebinghaus-journdephy4.pdf |
op_rights |
info:eu-repo/semantics/openAccess open_access oa_gruen |
op_doi |
https://doi.org/10.1051/jp4:2004121013 |
_version_ |
1768374072778948608 |