Modelling the impact of climate change on the atmospheric transport and the fate of persistent organic pollutants in the Arctic
The Danish Eulerian Hemispheric Model (DEHM) was applied to investigate how projected climate changes will affect the atmospheric transport of 13 persistent organic pollutants (POPs) to the Arctic and their environmental fate within the Arctic. Three sets of simulations were performed, one with pres...
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ftdoajarticles:oai:doaj.org/article:60a0777f80f249ef8d6f63b978e9bad8 2023-05-15T14:48:43+02:00 Modelling the impact of climate change on the atmospheric transport and the fate of persistent organic pollutants in the Arctic K. M. Hansen J. H. Christensen C. Geels J. D. Silver J. Brandt 2015-06-01T00:00:00Z https://doi.org/10.5194/acp-15-6549-2015 https://doaj.org/article/60a0777f80f249ef8d6f63b978e9bad8 EN eng Copernicus Publications http://www.atmos-chem-phys.net/15/6549/2015/acp-15-6549-2015.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 doi:10.5194/acp-15-6549-2015 https://doaj.org/article/60a0777f80f249ef8d6f63b978e9bad8 Atmospheric Chemistry and Physics, Vol 15, Iss 11, Pp 6549-6559 (2015) Physics QC1-999 Chemistry QD1-999 article 2015 ftdoajarticles https://doi.org/10.5194/acp-15-6549-2015 2022-12-30T22:01:20Z The Danish Eulerian Hemispheric Model (DEHM) was applied to investigate how projected climate changes will affect the atmospheric transport of 13 persistent organic pollutants (POPs) to the Arctic and their environmental fate within the Arctic. Three sets of simulations were performed, one with present day emissions and initial environmental concentrations from a 20-year spin-up simulation, one with present day emissions and with initial environmental concentrations set to zero and one without emissions but with initial environmental concentrations from the 20-year spin-up simulation. Each set of simulations consisted of two 10-year time slices representing the present (1990–2000) and future (2090–2100) climate conditions. DEHM was driven using meteorological input from the global circulation model, ECHAM/MPI-OM, simulating the SRES (Special Report on Emissions Scenarios) A1B climate scenario. Under the applied climate and emission scenarios, the total mass of all compounds was predicted to be up to 55 % lower across the Northern Hemisphere at the end of the 2090s than in the 1990s. The mass of HCHs within the Arctic was predicted to be up to 38 % higher, whereas the change in mass of the PCBs was predicted to range from 38 % lower to 17 % higher depending on the congener and the applied initial environmental concentrations. The results of this study also indicate that contaminants with no or a short emission history will be more rapidly transported to and build up in the arctic environment in a future warmer climate. The process that dominates the environmental behaviour of POPs in the Arctic under a future warmer climate scenario is the shift in mass of POPs from the surface media to the atmosphere induced by the higher mean temperature. This is to some degree counteracted by higher degradation rates also following the higher mean temperature. The more dominant of these two processes depends on the physical-chemical properties of the compounds. Previous model studies have predicted that the effect of a changed ... Article in Journal/Newspaper Arctic Climate change Directory of Open Access Journals: DOAJ Articles Arctic Atmospheric Chemistry and Physics 15 11 6549 6559 |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 K. M. Hansen J. H. Christensen C. Geels J. D. Silver J. Brandt Modelling the impact of climate change on the atmospheric transport and the fate of persistent organic pollutants in the Arctic |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
The Danish Eulerian Hemispheric Model (DEHM) was applied to investigate how projected climate changes will affect the atmospheric transport of 13 persistent organic pollutants (POPs) to the Arctic and their environmental fate within the Arctic. Three sets of simulations were performed, one with present day emissions and initial environmental concentrations from a 20-year spin-up simulation, one with present day emissions and with initial environmental concentrations set to zero and one without emissions but with initial environmental concentrations from the 20-year spin-up simulation. Each set of simulations consisted of two 10-year time slices representing the present (1990–2000) and future (2090–2100) climate conditions. DEHM was driven using meteorological input from the global circulation model, ECHAM/MPI-OM, simulating the SRES (Special Report on Emissions Scenarios) A1B climate scenario. Under the applied climate and emission scenarios, the total mass of all compounds was predicted to be up to 55 % lower across the Northern Hemisphere at the end of the 2090s than in the 1990s. The mass of HCHs within the Arctic was predicted to be up to 38 % higher, whereas the change in mass of the PCBs was predicted to range from 38 % lower to 17 % higher depending on the congener and the applied initial environmental concentrations. The results of this study also indicate that contaminants with no or a short emission history will be more rapidly transported to and build up in the arctic environment in a future warmer climate. The process that dominates the environmental behaviour of POPs in the Arctic under a future warmer climate scenario is the shift in mass of POPs from the surface media to the atmosphere induced by the higher mean temperature. This is to some degree counteracted by higher degradation rates also following the higher mean temperature. The more dominant of these two processes depends on the physical-chemical properties of the compounds. Previous model studies have predicted that the effect of a changed ... |
format |
Article in Journal/Newspaper |
author |
K. M. Hansen J. H. Christensen C. Geels J. D. Silver J. Brandt |
author_facet |
K. M. Hansen J. H. Christensen C. Geels J. D. Silver J. Brandt |
author_sort |
K. M. Hansen |
title |
Modelling the impact of climate change on the atmospheric transport and the fate of persistent organic pollutants in the Arctic |
title_short |
Modelling the impact of climate change on the atmospheric transport and the fate of persistent organic pollutants in the Arctic |
title_full |
Modelling the impact of climate change on the atmospheric transport and the fate of persistent organic pollutants in the Arctic |
title_fullStr |
Modelling the impact of climate change on the atmospheric transport and the fate of persistent organic pollutants in the Arctic |
title_full_unstemmed |
Modelling the impact of climate change on the atmospheric transport and the fate of persistent organic pollutants in the Arctic |
title_sort |
modelling the impact of climate change on the atmospheric transport and the fate of persistent organic pollutants in the arctic |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://doi.org/10.5194/acp-15-6549-2015 https://doaj.org/article/60a0777f80f249ef8d6f63b978e9bad8 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
Atmospheric Chemistry and Physics, Vol 15, Iss 11, Pp 6549-6559 (2015) |
op_relation |
http://www.atmos-chem-phys.net/15/6549/2015/acp-15-6549-2015.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 doi:10.5194/acp-15-6549-2015 https://doaj.org/article/60a0777f80f249ef8d6f63b978e9bad8 |
op_doi |
https://doi.org/10.5194/acp-15-6549-2015 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
15 |
container_issue |
11 |
container_start_page |
6549 |
op_container_end_page |
6559 |
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1766319805746380800 |