Pivotal Role of Snow Deposition and Melting Driving Fluxes of Polycyclic Aromatic Hydrocarbons at Coastal Livingston Island (Antarctica)
The atmosphere-land-ocean dynamics of semivolatile organic compounds in polar regions is poorly understood, also for the abundant and ubiquitous polycyclic aromatic hydrocarbons (PAHs). We report the concentrations and fluxes of PAHs in a polar coastal ecosystem (Livingston Island, Antarctica). From...
Published in: | Environmental Science & Technology |
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American Chemical Society
2018
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Online Access: | http://hdl.handle.net/10261/174001 https://doi.org/10.1021/acs.est.8b03640 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100002809 https://doi.org/10.13039/501100010198 |
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ftcsic:oai:digital.csic.es:10261/174001 2024-02-11T09:56:05+01:00 Pivotal Role of Snow Deposition and Melting Driving Fluxes of Polycyclic Aromatic Hydrocarbons at Coastal Livingston Island (Antarctica) Casal, Paulo Cabrerizo, Ana Vila-Costa, Maria Pizarro, M. Jiménez, Begoña Dachs, Jordi Ministerio de Economía, Industria y Competitividad (España) European Commission Generalitat de Catalunya 2018 http://hdl.handle.net/10261/174001 https://doi.org/10.1021/acs.est.8b03640 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100002809 https://doi.org/10.13039/501100010198 unknown American Chemical Society #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-65691-R http://dx.doi.org/10.1021/acs.est.8b03640 Sí doi:10.1021/acs.est.8b03640 issn: 0013-936X e-issn: 1520-5851 Environmental Science and Technology 52: 12327-12337 (2018) http://hdl.handle.net/10261/174001 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100002809 http://dx.doi.org/10.13039/501100010198 none artículo http://purl.org/coar/resource_type/c_6501 2018 ftcsic https://doi.org/10.1021/acs.est.8b0364010.13039/50110000078010.13039/50110000280910.13039/501100010198 2024-01-16T10:34:56Z The atmosphere-land-ocean dynamics of semivolatile organic compounds in polar regions is poorly understood, also for the abundant and ubiquitous polycyclic aromatic hydrocarbons (PAHs). We report the concentrations and fluxes of PAHs in a polar coastal ecosystem (Livingston Island, Antarctica). From late spring (December 2014) to late summer (February 2015), we sampled air, snow, coastal seawater, plankton, and the fugacity in soils and snow. The concentrations of PAHs in seawater were low but increased during the austral summer. The PAH concentrations in snow were significantly higher than in coastal seawater. Soil-air fugacity ratios showed a net volatilization of PAH when soils were covered with lichens, and close to air-soil equilibrium for bare soils. Concentrations in surface snow were also close to equilibrium with atmospheric PAHs. Conversely, there was a net diffusive deposition of PAHs to coastal seawater during late spring, but a net volatilization from seawater during late summer. Volatilization fluxes were correlated with seawater temperature and salinity, consistent with a key role of snowmelt to the fluxes and dissolved phase concentrations during the austral summer. The comprehensive assessment provided here shows that the fugacity amplification in snow is transferred to soils and coastal seawater supporting PAH concentrations and fluxes. Inorganic nutrient analyses were performed by Mrs. M. I. Abad in coordination with Dr. E. Berdalet (Head of the Service) at the “Nutrient Analysis Service” of the ICM (CSIC). We thank F. Cerqueria and A. Martinez for support with DNA analysis. This work was supported by Spanish Ministry of Science to P.C. through a predoctoral fellowhip, by Fundación BBVA award to M.V.C., European Commission to A.C. through a Marie Curie international outgoing fellowship, and by the Spanish MINECO through projects REMARCA (CTM2012- 34673) and ISOMICS (CTM2015-65691-R). The research group of Global Change and Genomic Biogeochemistry is supported by the Catalan Government ... Article in Journal/Newspaper Antarc* Antarctica Livingston Island Digital.CSIC (Spanish National Research Council) Austral Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Environmental Science & Technology 52 21 12327 12337 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
description |
The atmosphere-land-ocean dynamics of semivolatile organic compounds in polar regions is poorly understood, also for the abundant and ubiquitous polycyclic aromatic hydrocarbons (PAHs). We report the concentrations and fluxes of PAHs in a polar coastal ecosystem (Livingston Island, Antarctica). From late spring (December 2014) to late summer (February 2015), we sampled air, snow, coastal seawater, plankton, and the fugacity in soils and snow. The concentrations of PAHs in seawater were low but increased during the austral summer. The PAH concentrations in snow were significantly higher than in coastal seawater. Soil-air fugacity ratios showed a net volatilization of PAH when soils were covered with lichens, and close to air-soil equilibrium for bare soils. Concentrations in surface snow were also close to equilibrium with atmospheric PAHs. Conversely, there was a net diffusive deposition of PAHs to coastal seawater during late spring, but a net volatilization from seawater during late summer. Volatilization fluxes were correlated with seawater temperature and salinity, consistent with a key role of snowmelt to the fluxes and dissolved phase concentrations during the austral summer. The comprehensive assessment provided here shows that the fugacity amplification in snow is transferred to soils and coastal seawater supporting PAH concentrations and fluxes. Inorganic nutrient analyses were performed by Mrs. M. I. Abad in coordination with Dr. E. Berdalet (Head of the Service) at the “Nutrient Analysis Service” of the ICM (CSIC). We thank F. Cerqueria and A. Martinez for support with DNA analysis. This work was supported by Spanish Ministry of Science to P.C. through a predoctoral fellowhip, by Fundación BBVA award to M.V.C., European Commission to A.C. through a Marie Curie international outgoing fellowship, and by the Spanish MINECO through projects REMARCA (CTM2012- 34673) and ISOMICS (CTM2015-65691-R). The research group of Global Change and Genomic Biogeochemistry is supported by the Catalan Government ... |
author2 |
Ministerio de Economía, Industria y Competitividad (España) European Commission Generalitat de Catalunya |
format |
Article in Journal/Newspaper |
author |
Casal, Paulo Cabrerizo, Ana Vila-Costa, Maria Pizarro, M. Jiménez, Begoña Dachs, Jordi |
spellingShingle |
Casal, Paulo Cabrerizo, Ana Vila-Costa, Maria Pizarro, M. Jiménez, Begoña Dachs, Jordi Pivotal Role of Snow Deposition and Melting Driving Fluxes of Polycyclic Aromatic Hydrocarbons at Coastal Livingston Island (Antarctica) |
author_facet |
Casal, Paulo Cabrerizo, Ana Vila-Costa, Maria Pizarro, M. Jiménez, Begoña Dachs, Jordi |
author_sort |
Casal, Paulo |
title |
Pivotal Role of Snow Deposition and Melting Driving Fluxes of Polycyclic Aromatic Hydrocarbons at Coastal Livingston Island (Antarctica) |
title_short |
Pivotal Role of Snow Deposition and Melting Driving Fluxes of Polycyclic Aromatic Hydrocarbons at Coastal Livingston Island (Antarctica) |
title_full |
Pivotal Role of Snow Deposition and Melting Driving Fluxes of Polycyclic Aromatic Hydrocarbons at Coastal Livingston Island (Antarctica) |
title_fullStr |
Pivotal Role of Snow Deposition and Melting Driving Fluxes of Polycyclic Aromatic Hydrocarbons at Coastal Livingston Island (Antarctica) |
title_full_unstemmed |
Pivotal Role of Snow Deposition and Melting Driving Fluxes of Polycyclic Aromatic Hydrocarbons at Coastal Livingston Island (Antarctica) |
title_sort |
pivotal role of snow deposition and melting driving fluxes of polycyclic aromatic hydrocarbons at coastal livingston island (antarctica) |
publisher |
American Chemical Society |
publishDate |
2018 |
url |
http://hdl.handle.net/10261/174001 https://doi.org/10.1021/acs.est.8b03640 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100002809 https://doi.org/10.13039/501100010198 |
long_lat |
ENVELOPE(-60.500,-60.500,-62.600,-62.600) |
geographic |
Austral Livingston Island |
geographic_facet |
Austral Livingston Island |
genre |
Antarc* Antarctica Livingston Island |
genre_facet |
Antarc* Antarctica Livingston Island |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-65691-R http://dx.doi.org/10.1021/acs.est.8b03640 Sí doi:10.1021/acs.est.8b03640 issn: 0013-936X e-issn: 1520-5851 Environmental Science and Technology 52: 12327-12337 (2018) http://hdl.handle.net/10261/174001 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100002809 http://dx.doi.org/10.13039/501100010198 |
op_rights |
none |
op_doi |
https://doi.org/10.1021/acs.est.8b0364010.13039/50110000078010.13039/50110000280910.13039/501100010198 |
container_title |
Environmental Science & Technology |
container_volume |
52 |
container_issue |
21 |
container_start_page |
12327 |
op_container_end_page |
12337 |
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1790600582692601856 |