Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and ecoregion-specific components
18 pages, 9 figures, supplement https://doi.org/10.5194/acp-24-6305-2024-supplement.-- Data availability: The data discussed in the paper are available from Zenodo (https://doi.org/10.5281/zenodo.10663786, Paglione, 2024) Antarctica and the Southern Ocean (SO) are the most pristine areas of the glob...
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ftcsic:oai:digital.csic.es:10261/366097 2024-09-15T17:43:17+00:00 Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and ecoregion-specific components Paglione, Marco Beddows, David C. S. Jones, Anna E. Lachlan-Cope, Thomas Rinaldi, Matteo Decesari, Stefano Manarin, Francesco Russo, Mara Mansour, Karam Harrison, Roy M. Mazzanti, Andrea Tagliavini, Emilio Dall'Osto, Manuel European Commission Ministerio de Economía y Competitividad (España) Ministerio de Ciencia e Innovación (España) Agencia Estatal de Investigación (España) CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI) 2024-05 http://hdl.handle.net/10261/366097 https://doi.org/10.5194/acp-24-6305-2024 en eng European Geosciences Union #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/821205 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2017-89117-R/ES/INTERACTIONES ATMOSFERA-HIELO-OCEANO EN ZONAS POLARES: IMPACTO EN EL CLIMA Y LA ECOLOGIA/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-110288RB-I00/ES/EMISIONES DE AEROSOLES EN AMBIENTES POLARES BAJO CAMBIO/ Publisher's version https://doi.org/10.5194/acp-24-6305-2024 Sí Atmospheric Chemistry and Physics 24(10): 6305-6322 (2024) CEX2019-000928-S http://hdl.handle.net/10261/366097 doi:10.5194/acp-24-6305-2024 1680-7324 open artículo 2024 ftcsic https://doi.org/10.5194/acp-24-6305-2024 2024-09-02T14:08:53Z 18 pages, 9 figures, supplement https://doi.org/10.5194/acp-24-6305-2024-supplement.-- Data availability: The data discussed in the paper are available from Zenodo (https://doi.org/10.5281/zenodo.10663786, Paglione, 2024) Antarctica and the Southern Ocean (SO) are the most pristine areas of the globe and represent ideal places to investigate aerosol–climate interactions in an unperturbed atmosphere. In this study, we present submicrometer aerosol (PM1) source apportionment for two sample sets collected in parallel at the British Antarctic Survey stations of Signy and Halley during the austral summer of 2018–2019. Water-soluble organic matter (WSOM) is a major aerosol component at both sites (37 % and 29 % of water-soluble PM1, on average, at Signy and Halley, respectively). Remarkable differences between pelagic (open-ocean) and sympagic (influenced by sea ice) air mass histories and related aerosol sources are found. The application of factor analysis techniques to series of spectra obtained by means of proton-nuclear magnetic resonance (H-NMR) spectroscopy on the samples allows the identification of five organic aerosol (OA) sources: two primary organic aerosol (POA) types, characterized by sugars, polyols, and degradation products of lipids and associated with open-ocean and sympagic/coastal waters, respectively; two secondary organic aerosol (SOA) types, one enriched in methanesulfonic acid (MSA) and dimethylamine (DMA) and associated with pelagic waters and the other characterized by trimethylamine (TMA) and linked to sympagic environments; and a fifth component of unclear origin, possibly associated with the atmospheric aging of primary emissions. Overall, our results strongly indicate that the emissions from sympagic and pelagic ecosystems affect the variability in the submicrometer aerosol composition in the study area, with atmospheric circulation establishing marked latitudinal gradients only for some of the aerosol components (e.g., the sympagic components) while distributing the others (e.g., ... Article in Journal/Newspaper Antarc* Antarctic Antarctica British Antarctic Survey Sea ice Southern Ocean Digital.CSIC (Spanish National Research Council) Atmospheric Chemistry and Physics 24 10 6305 6322 |
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Digital.CSIC (Spanish National Research Council) |
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ftcsic |
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English |
description |
18 pages, 9 figures, supplement https://doi.org/10.5194/acp-24-6305-2024-supplement.-- Data availability: The data discussed in the paper are available from Zenodo (https://doi.org/10.5281/zenodo.10663786, Paglione, 2024) Antarctica and the Southern Ocean (SO) are the most pristine areas of the globe and represent ideal places to investigate aerosol–climate interactions in an unperturbed atmosphere. In this study, we present submicrometer aerosol (PM1) source apportionment for two sample sets collected in parallel at the British Antarctic Survey stations of Signy and Halley during the austral summer of 2018–2019. Water-soluble organic matter (WSOM) is a major aerosol component at both sites (37 % and 29 % of water-soluble PM1, on average, at Signy and Halley, respectively). Remarkable differences between pelagic (open-ocean) and sympagic (influenced by sea ice) air mass histories and related aerosol sources are found. The application of factor analysis techniques to series of spectra obtained by means of proton-nuclear magnetic resonance (H-NMR) spectroscopy on the samples allows the identification of five organic aerosol (OA) sources: two primary organic aerosol (POA) types, characterized by sugars, polyols, and degradation products of lipids and associated with open-ocean and sympagic/coastal waters, respectively; two secondary organic aerosol (SOA) types, one enriched in methanesulfonic acid (MSA) and dimethylamine (DMA) and associated with pelagic waters and the other characterized by trimethylamine (TMA) and linked to sympagic environments; and a fifth component of unclear origin, possibly associated with the atmospheric aging of primary emissions. Overall, our results strongly indicate that the emissions from sympagic and pelagic ecosystems affect the variability in the submicrometer aerosol composition in the study area, with atmospheric circulation establishing marked latitudinal gradients only for some of the aerosol components (e.g., the sympagic components) while distributing the others (e.g., ... |
author2 |
European Commission Ministerio de Economía y Competitividad (España) Ministerio de Ciencia e Innovación (España) Agencia Estatal de Investigación (España) CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI) |
format |
Article in Journal/Newspaper |
author |
Paglione, Marco Beddows, David C. S. Jones, Anna E. Lachlan-Cope, Thomas Rinaldi, Matteo Decesari, Stefano Manarin, Francesco Russo, Mara Mansour, Karam Harrison, Roy M. Mazzanti, Andrea Tagliavini, Emilio Dall'Osto, Manuel |
spellingShingle |
Paglione, Marco Beddows, David C. S. Jones, Anna E. Lachlan-Cope, Thomas Rinaldi, Matteo Decesari, Stefano Manarin, Francesco Russo, Mara Mansour, Karam Harrison, Roy M. Mazzanti, Andrea Tagliavini, Emilio Dall'Osto, Manuel Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and ecoregion-specific components |
author_facet |
Paglione, Marco Beddows, David C. S. Jones, Anna E. Lachlan-Cope, Thomas Rinaldi, Matteo Decesari, Stefano Manarin, Francesco Russo, Mara Mansour, Karam Harrison, Roy M. Mazzanti, Andrea Tagliavini, Emilio Dall'Osto, Manuel |
author_sort |
Paglione, Marco |
title |
Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and ecoregion-specific components |
title_short |
Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and ecoregion-specific components |
title_full |
Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and ecoregion-specific components |
title_fullStr |
Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and ecoregion-specific components |
title_full_unstemmed |
Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and ecoregion-specific components |
title_sort |
simultaneous organic aerosol source apportionment at two antarctic sites reveals large-scale and ecoregion-specific components |
publisher |
European Geosciences Union |
publishDate |
2024 |
url |
http://hdl.handle.net/10261/366097 https://doi.org/10.5194/acp-24-6305-2024 |
genre |
Antarc* Antarctic Antarctica British Antarctic Survey Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica British Antarctic Survey Sea ice Southern Ocean |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/821205 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2017-89117-R/ES/INTERACTIONES ATMOSFERA-HIELO-OCEANO EN ZONAS POLARES: IMPACTO EN EL CLIMA Y LA ECOLOGIA/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-110288RB-I00/ES/EMISIONES DE AEROSOLES EN AMBIENTES POLARES BAJO CAMBIO/ Publisher's version https://doi.org/10.5194/acp-24-6305-2024 Sí Atmospheric Chemistry and Physics 24(10): 6305-6322 (2024) CEX2019-000928-S http://hdl.handle.net/10261/366097 doi:10.5194/acp-24-6305-2024 1680-7324 |
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open |
op_doi |
https://doi.org/10.5194/acp-24-6305-2024 |
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Atmospheric Chemistry and Physics |
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