Climatic and biogeochemical controls on the remobilization and reservoirs of persistent organic pollutants in Antarctica
After decades of primary emissions, reservoirs of persistent organic pollutants (POPs) have accumulated in soils and snow/ice in polar regions. These reservoirs can be remobilized due to decreasing primary emissions or due to climate change-driven warmer conditions. Results from a sampling campaign...
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American Chemical Society
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Online Access: | http://hdl.handle.net/10261/80538 https://doi.org/10.1021/es400471c |
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ftcsic:oai:digital.csic.es:10261/80538 2024-02-11T09:57:19+01:00 Climatic and biogeochemical controls on the remobilization and reservoirs of persistent organic pollutants in Antarctica Cabrerizo, Ana Dachs, Jordi Barceló, Damià Jones, Kevin C. 2013 http://hdl.handle.net/10261/80538 https://doi.org/10.1021/es400471c en eng American Chemical Society doi:10.1021/es400471c issn: 0013-936X e-issn: 1520-5851 Environmental Science and Technology 47 (9): 4299-4306 (2013) http://hdl.handle.net/10261/80538 none artículo http://purl.org/coar/resource_type/c_6501 2013 ftcsic https://doi.org/10.1021/es400471c 2024-01-16T09:51:22Z After decades of primary emissions, reservoirs of persistent organic pollutants (POPs) have accumulated in soils and snow/ice in polar regions. These reservoirs can be remobilized due to decreasing primary emissions or due to climate change-driven warmer conditions. Results from a sampling campaign carried out at Livingston Island (Antarctica) focusing on field measurements of air-soil exchange of POPs show that there is a close coupling of the polychlorinated biphenyls (PCBs) in the atmosphere and snow/ice and soils with a status close to air-surface equilibrium to a net volatilization from Antarctic reservoirs. This remobilization of PCBs is driven by changes in temperature and soil organic matter (SOM) content, and it provides strong evidence that the current and future remobilization and sinks of POPs are a strong function of the close coupling of climate change and carbon cycling in the Antarctic region and this is not only due to warming. Whereas an increase of 1 C in ambient temperature due to climate change would increase current Antarctic atmospheric inventories of PCBs by 21-45%, a concurrent increase of 0.5% SOM would counteract the influence of warming by reducing the POP fugacity in soil. A 1 C increase in Antarctic temperatures will induce an increase of the soil-vegetation organic carbon and associated POPs pools by 25%, becoming a net sink of POPs, and trapping up to 70 times more POPs than the amount remobilized to the atmosphere. Therefore, changes in soil biogeochemistry driven by perturbations of climate may increase to a larger degree the soil fugacity capacity than the decrease in air and soil fugacity capacity due to higher temperatures. Future research should focus on quantifying these remobilization fluxes and sinks for the Antarctic region. © 2013 American Chemical Society. This research project was funded by the Spanish Ministry of Science and Innovation through the ATOS project as part of the International Polar Year activities. We thank support staff at Juan Carlos I research ... Article in Journal/Newspaper Antarc* Antarctic Antarctica International Polar Year Livingston Island Digital.CSIC (Spanish National Research Council) Antarctic Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) The Antarctic Environmental Science & Technology 47 9 4299 4306 |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
After decades of primary emissions, reservoirs of persistent organic pollutants (POPs) have accumulated in soils and snow/ice in polar regions. These reservoirs can be remobilized due to decreasing primary emissions or due to climate change-driven warmer conditions. Results from a sampling campaign carried out at Livingston Island (Antarctica) focusing on field measurements of air-soil exchange of POPs show that there is a close coupling of the polychlorinated biphenyls (PCBs) in the atmosphere and snow/ice and soils with a status close to air-surface equilibrium to a net volatilization from Antarctic reservoirs. This remobilization of PCBs is driven by changes in temperature and soil organic matter (SOM) content, and it provides strong evidence that the current and future remobilization and sinks of POPs are a strong function of the close coupling of climate change and carbon cycling in the Antarctic region and this is not only due to warming. Whereas an increase of 1 C in ambient temperature due to climate change would increase current Antarctic atmospheric inventories of PCBs by 21-45%, a concurrent increase of 0.5% SOM would counteract the influence of warming by reducing the POP fugacity in soil. A 1 C increase in Antarctic temperatures will induce an increase of the soil-vegetation organic carbon and associated POPs pools by 25%, becoming a net sink of POPs, and trapping up to 70 times more POPs than the amount remobilized to the atmosphere. Therefore, changes in soil biogeochemistry driven by perturbations of climate may increase to a larger degree the soil fugacity capacity than the decrease in air and soil fugacity capacity due to higher temperatures. Future research should focus on quantifying these remobilization fluxes and sinks for the Antarctic region. © 2013 American Chemical Society. This research project was funded by the Spanish Ministry of Science and Innovation through the ATOS project as part of the International Polar Year activities. We thank support staff at Juan Carlos I research ... |
format |
Article in Journal/Newspaper |
author |
Cabrerizo, Ana Dachs, Jordi Barceló, Damià Jones, Kevin C. |
spellingShingle |
Cabrerizo, Ana Dachs, Jordi Barceló, Damià Jones, Kevin C. Climatic and biogeochemical controls on the remobilization and reservoirs of persistent organic pollutants in Antarctica |
author_facet |
Cabrerizo, Ana Dachs, Jordi Barceló, Damià Jones, Kevin C. |
author_sort |
Cabrerizo, Ana |
title |
Climatic and biogeochemical controls on the remobilization and reservoirs of persistent organic pollutants in Antarctica |
title_short |
Climatic and biogeochemical controls on the remobilization and reservoirs of persistent organic pollutants in Antarctica |
title_full |
Climatic and biogeochemical controls on the remobilization and reservoirs of persistent organic pollutants in Antarctica |
title_fullStr |
Climatic and biogeochemical controls on the remobilization and reservoirs of persistent organic pollutants in Antarctica |
title_full_unstemmed |
Climatic and biogeochemical controls on the remobilization and reservoirs of persistent organic pollutants in Antarctica |
title_sort |
climatic and biogeochemical controls on the remobilization and reservoirs of persistent organic pollutants in antarctica |
publisher |
American Chemical Society |
publishDate |
2013 |
url |
http://hdl.handle.net/10261/80538 https://doi.org/10.1021/es400471c |
long_lat |
ENVELOPE(-60.500,-60.500,-62.600,-62.600) |
geographic |
Antarctic Livingston Island The Antarctic |
geographic_facet |
Antarctic Livingston Island The Antarctic |
genre |
Antarc* Antarctic Antarctica International Polar Year Livingston Island |
genre_facet |
Antarc* Antarctic Antarctica International Polar Year Livingston Island |
op_relation |
doi:10.1021/es400471c issn: 0013-936X e-issn: 1520-5851 Environmental Science and Technology 47 (9): 4299-4306 (2013) http://hdl.handle.net/10261/80538 |
op_rights |
none |
op_doi |
https://doi.org/10.1021/es400471c |
container_title |
Environmental Science & Technology |
container_volume |
47 |
container_issue |
9 |
container_start_page |
4299 |
op_container_end_page |
4306 |
_version_ |
1790609622367731712 |