Enhanced concentrations of dissolved gaseous mercury in the surface waters of the Arctic Ocean
During an almost three months long expedition in the Arctic Ocean, the Beringia 2005, dissolved gaseous mercury (DGM) was measured continuously in the surface water. The DGM concentration was measured using an equilibrium system, i.e. the DGM in the water phase equilibrated with a stream of gas and...
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Online Access: | https://doi.org/10.1016/j.marchem.2008.04.002 https://research.chalmers.se/en/publication/97057 |
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ftchalmersuniv:oai:research.chalmers.se:97057 2023-05-15T14:53:41+02:00 Enhanced concentrations of dissolved gaseous mercury in the surface waters of the Arctic Ocean Andersson, Maria Sommar, J. Gårdfeldt, Katarina Lindqvist, Oliver 2008 text https://doi.org/10.1016/j.marchem.2008.04.002 https://research.chalmers.se/en/publication/97057 unknown http://dx.doi.org/10.1016/j.marchem.2008.04.002 https://research.chalmers.se/en/publication/97057 Oceanography Hydrology Water Resources Chemical Sciences gas-exchange mediterranean sea humic substances time-series elemental mercury coastal seawater atmospheric mercury atlantic-ocean air springtime depletion 2008 ftchalmersuniv https://doi.org/10.1016/j.marchem.2008.04.002 2022-12-11T06:50:55Z During an almost three months long expedition in the Arctic Ocean, the Beringia 2005, dissolved gaseous mercury (DGM) was measured continuously in the surface water. The DGM concentration was measured using an equilibrium system, i.e. the DGM in the water phase equilibrated with a stream of gas and the gas was thereafter analysed with respect to its mercury content. The DGM concentrations were calculated using the following equation, DGM = Hg eq / k H' where Hg eq is the equilibrated concentration of elemental mercury in the gas phase and k H' is the dimensionless Henry's law constant at desired temperature and salinity. During the expedition several features were observed. For example, enhanced DGM concentration was measured underneath the ice which may indicate that the sea ice acted as a barrier for evasion of mercury from the Arctic Ocean to the atmosphere. Furthermore, elevated DGM concentrations were observed in water that might have originated from river discharge. The gas-exchange of mercury between the ocean and the atmosphere was calculated in the open water and both deposition and evasion were observed. The measurements showed significantly enhanced DGM concentrations, compared to more southern latitudes. © 2008 Elsevier B.V. All rights reserved. Other/Unknown Material Arctic Arctic Ocean Sea ice Beringia Chalmers University of Technology: Chalmers research Arctic Arctic Ocean Marine Chemistry 110 3-4 190 194 |
institution |
Open Polar |
collection |
Chalmers University of Technology: Chalmers research |
op_collection_id |
ftchalmersuniv |
language |
unknown |
topic |
Oceanography Hydrology Water Resources Chemical Sciences gas-exchange mediterranean sea humic substances time-series elemental mercury coastal seawater atmospheric mercury atlantic-ocean air springtime depletion |
spellingShingle |
Oceanography Hydrology Water Resources Chemical Sciences gas-exchange mediterranean sea humic substances time-series elemental mercury coastal seawater atmospheric mercury atlantic-ocean air springtime depletion Andersson, Maria Sommar, J. Gårdfeldt, Katarina Lindqvist, Oliver Enhanced concentrations of dissolved gaseous mercury in the surface waters of the Arctic Ocean |
topic_facet |
Oceanography Hydrology Water Resources Chemical Sciences gas-exchange mediterranean sea humic substances time-series elemental mercury coastal seawater atmospheric mercury atlantic-ocean air springtime depletion |
description |
During an almost three months long expedition in the Arctic Ocean, the Beringia 2005, dissolved gaseous mercury (DGM) was measured continuously in the surface water. The DGM concentration was measured using an equilibrium system, i.e. the DGM in the water phase equilibrated with a stream of gas and the gas was thereafter analysed with respect to its mercury content. The DGM concentrations were calculated using the following equation, DGM = Hg eq / k H' where Hg eq is the equilibrated concentration of elemental mercury in the gas phase and k H' is the dimensionless Henry's law constant at desired temperature and salinity. During the expedition several features were observed. For example, enhanced DGM concentration was measured underneath the ice which may indicate that the sea ice acted as a barrier for evasion of mercury from the Arctic Ocean to the atmosphere. Furthermore, elevated DGM concentrations were observed in water that might have originated from river discharge. The gas-exchange of mercury between the ocean and the atmosphere was calculated in the open water and both deposition and evasion were observed. The measurements showed significantly enhanced DGM concentrations, compared to more southern latitudes. © 2008 Elsevier B.V. All rights reserved. |
author |
Andersson, Maria Sommar, J. Gårdfeldt, Katarina Lindqvist, Oliver |
author_facet |
Andersson, Maria Sommar, J. Gårdfeldt, Katarina Lindqvist, Oliver |
author_sort |
Andersson, Maria |
title |
Enhanced concentrations of dissolved gaseous mercury in the surface waters of the Arctic Ocean |
title_short |
Enhanced concentrations of dissolved gaseous mercury in the surface waters of the Arctic Ocean |
title_full |
Enhanced concentrations of dissolved gaseous mercury in the surface waters of the Arctic Ocean |
title_fullStr |
Enhanced concentrations of dissolved gaseous mercury in the surface waters of the Arctic Ocean |
title_full_unstemmed |
Enhanced concentrations of dissolved gaseous mercury in the surface waters of the Arctic Ocean |
title_sort |
enhanced concentrations of dissolved gaseous mercury in the surface waters of the arctic ocean |
publishDate |
2008 |
url |
https://doi.org/10.1016/j.marchem.2008.04.002 https://research.chalmers.se/en/publication/97057 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice Beringia |
genre_facet |
Arctic Arctic Ocean Sea ice Beringia |
op_relation |
http://dx.doi.org/10.1016/j.marchem.2008.04.002 https://research.chalmers.se/en/publication/97057 |
op_doi |
https://doi.org/10.1016/j.marchem.2008.04.002 |
container_title |
Marine Chemistry |
container_volume |
110 |
container_issue |
3-4 |
container_start_page |
190 |
op_container_end_page |
194 |
_version_ |
1766325271513792512 |