Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and ecoregion-specific components
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...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2024
|
Subjects: | |
Online Access: | https://doi.org/10.5194/acp-24-6305-2024 https://noa.gwlb.de/receive/cop_mods_00073914 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00072049/acp-24-6305-2024.pdf https://acp.copernicus.org/articles/24/6305/2024/acp-24-6305-2024.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00073914 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00073914 2024-06-23T07:46:16+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 Lachlan-Cope, Thomas Rinaldi, Matteo Decesari, Stefano Manarini, Francesco Russo, Mara Mansour, Karam Harrison, Roy M. Mazzanti, Andrea Tagliavini, Emilio Dall'Osto, Manuel 2024-05 electronic https://doi.org/10.5194/acp-24-6305-2024 https://noa.gwlb.de/receive/cop_mods_00073914 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00072049/acp-24-6305-2024.pdf https://acp.copernicus.org/articles/24/6305/2024/acp-24-6305-2024.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-24-6305-2024 https://noa.gwlb.de/receive/cop_mods_00073914 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00072049/acp-24-6305-2024.pdf https://acp.copernicus.org/articles/24/6305/2024/acp-24-6305-2024.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2024 ftnonlinearchiv https://doi.org/10.5194/acp-24-6305-2024 2024-06-03T23:38:30Z 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., pelagic and/or aged components) both in maritime and inner Antarctic regions. Article in Journal/Newspaper Antarc* Antarctic Antarctica British Antarctic Survey Sea ice Southern Ocean Niedersächsisches Online-Archiv NOA Antarctic Austral Southern Ocean Atmospheric Chemistry and Physics 24 10 6305 6322 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Paglione, Marco Beddows, David C. S. Jones, Anna Lachlan-Cope, Thomas Rinaldi, Matteo Decesari, Stefano Manarini, 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 |
topic_facet |
article Verlagsveröffentlichung |
description |
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., pelagic and/or aged components) both in maritime and inner Antarctic regions. |
format |
Article in Journal/Newspaper |
author |
Paglione, Marco Beddows, David C. S. Jones, Anna Lachlan-Cope, Thomas Rinaldi, Matteo Decesari, Stefano Manarini, Francesco Russo, Mara Mansour, Karam Harrison, Roy M. Mazzanti, Andrea Tagliavini, Emilio Dall'Osto, Manuel |
author_facet |
Paglione, Marco Beddows, David C. S. Jones, Anna Lachlan-Cope, Thomas Rinaldi, Matteo Decesari, Stefano Manarini, 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 |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/acp-24-6305-2024 https://noa.gwlb.de/receive/cop_mods_00073914 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00072049/acp-24-6305-2024.pdf https://acp.copernicus.org/articles/24/6305/2024/acp-24-6305-2024.pdf |
geographic |
Antarctic Austral Southern Ocean |
geographic_facet |
Antarctic Austral Southern Ocean |
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 |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-24-6305-2024 https://noa.gwlb.de/receive/cop_mods_00073914 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00072049/acp-24-6305-2024.pdf https://acp.copernicus.org/articles/24/6305/2024/acp-24-6305-2024.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-24-6305-2024 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
24 |
container_issue |
10 |
container_start_page |
6305 |
op_container_end_page |
6322 |
_version_ |
1802644885495349248 |