Impact of Biomass Burning on Arctic Aerosol Composition
Emissions from biomass burning (BB) occurring at midlatitudes can reach the Arctic, where they influence the remote aerosol population. By using measurements of levoglucosan and black carbon, we identify seven BB events reaching Svalbard in 2020. We find that most of the BB events are significantly...
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Online Access: | https://hdl.handle.net/11250/3129565 https://doi.org/10.1021/acsearthspacechem.3c00187 |
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ftnilu:oai:nilu.brage.unit.no:11250/3129565 2024-09-09T19:22:08+00:00 Impact of Biomass Burning on Arctic Aerosol Composition Gramlich, Yvette Siegel, Karolina Haslett, Sophie L. Cremer, Roxana S. Lunder, Chris Rene Kommula, Snehitha M. Buchholz, Angela Yttri, Karl Espen Chen, Gang Krejci, Radovan Zieger, Paul Virtanen, Annele Riipinen, Ilona Mohr, Claudia 2024 application/pdf https://hdl.handle.net/11250/3129565 https://doi.org/10.1021/acsearthspacechem.3c00187 eng eng EC/H2020/821205 EU – Horisont Europa (EC/HEU): 101056783 NILU: 115058 Klima- og miljødepartementet: 22/3615-4 ACS Earth and Space Chemistry. 2024. urn:issn:2472-3452 https://hdl.handle.net/11250/3129565 https://doi.org/10.1021/acsearthspacechem.3c00187 cristin:2265397 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2024 The Authors. Published by American Chemical Society. ACS Earth and Space Chemistry Peer reviewed Journal article 2024 ftnilu https://doi.org/10.1021/acsearthspacechem.3c00187 2024-06-17T23:32:49Z Emissions from biomass burning (BB) occurring at midlatitudes can reach the Arctic, where they influence the remote aerosol population. By using measurements of levoglucosan and black carbon, we identify seven BB events reaching Svalbard in 2020. We find that most of the BB events are significantly different to the rest of the year (nonevents) for most of the chemical and physical properties. Aerosol mass and number concentrations are enhanced by up to 1 order of magnitude during the BB events. During BB events, the submicrometer aerosol bulk composition changes from an organic- and sulfate-dominated regime to a clearly organic-dominated regime. This results in a significantly lower hygroscopicity parameter κ for BB aerosol (0.4 ± 0.2) compared to nonevents (0.5 ± 0.2), calculated from the nonrefractory aerosol composition. The organic fraction in the BB aerosol showed no significant difference for the O:C ratios (0.9 ± 0.3) compared to the year (0.9 ± 0.6). Accumulation mode particles were present during all BB events, while in the summer an additional Aitken mode was observed, indicating a mixture of the advected air mass with locally produced particles. BB tracers (vanillic, homovanillic, and hydroxybenzoic acid, nitrophenol, methylnitrophenol, and nitrocatechol) were significantly higher when air mass back trajectories passed over active fire regions in Eastern Europe, indicating agricultural and wildfires as sources. Our results suggest that the impact of BB on the Arctic aerosol depends on the season in which they occur, and agricultural and wildfires from Eastern Europe have the potential to disturb the background conditions the most. publishedVersion Article in Journal/Newspaper Arctic black carbon Svalbard NILU – Norwegian Institute for Air Research: NILU Brage Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) Arctic Svalbard ACS Earth and Space Chemistry 8 5 920 936 |
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Open Polar |
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NILU – Norwegian Institute for Air Research: NILU Brage |
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ftnilu |
language |
English |
description |
Emissions from biomass burning (BB) occurring at midlatitudes can reach the Arctic, where they influence the remote aerosol population. By using measurements of levoglucosan and black carbon, we identify seven BB events reaching Svalbard in 2020. We find that most of the BB events are significantly different to the rest of the year (nonevents) for most of the chemical and physical properties. Aerosol mass and number concentrations are enhanced by up to 1 order of magnitude during the BB events. During BB events, the submicrometer aerosol bulk composition changes from an organic- and sulfate-dominated regime to a clearly organic-dominated regime. This results in a significantly lower hygroscopicity parameter κ for BB aerosol (0.4 ± 0.2) compared to nonevents (0.5 ± 0.2), calculated from the nonrefractory aerosol composition. The organic fraction in the BB aerosol showed no significant difference for the O:C ratios (0.9 ± 0.3) compared to the year (0.9 ± 0.6). Accumulation mode particles were present during all BB events, while in the summer an additional Aitken mode was observed, indicating a mixture of the advected air mass with locally produced particles. BB tracers (vanillic, homovanillic, and hydroxybenzoic acid, nitrophenol, methylnitrophenol, and nitrocatechol) were significantly higher when air mass back trajectories passed over active fire regions in Eastern Europe, indicating agricultural and wildfires as sources. Our results suggest that the impact of BB on the Arctic aerosol depends on the season in which they occur, and agricultural and wildfires from Eastern Europe have the potential to disturb the background conditions the most. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Gramlich, Yvette Siegel, Karolina Haslett, Sophie L. Cremer, Roxana S. Lunder, Chris Rene Kommula, Snehitha M. Buchholz, Angela Yttri, Karl Espen Chen, Gang Krejci, Radovan Zieger, Paul Virtanen, Annele Riipinen, Ilona Mohr, Claudia |
spellingShingle |
Gramlich, Yvette Siegel, Karolina Haslett, Sophie L. Cremer, Roxana S. Lunder, Chris Rene Kommula, Snehitha M. Buchholz, Angela Yttri, Karl Espen Chen, Gang Krejci, Radovan Zieger, Paul Virtanen, Annele Riipinen, Ilona Mohr, Claudia Impact of Biomass Burning on Arctic Aerosol Composition |
author_facet |
Gramlich, Yvette Siegel, Karolina Haslett, Sophie L. Cremer, Roxana S. Lunder, Chris Rene Kommula, Snehitha M. Buchholz, Angela Yttri, Karl Espen Chen, Gang Krejci, Radovan Zieger, Paul Virtanen, Annele Riipinen, Ilona Mohr, Claudia |
author_sort |
Gramlich, Yvette |
title |
Impact of Biomass Burning on Arctic Aerosol Composition |
title_short |
Impact of Biomass Burning on Arctic Aerosol Composition |
title_full |
Impact of Biomass Burning on Arctic Aerosol Composition |
title_fullStr |
Impact of Biomass Burning on Arctic Aerosol Composition |
title_full_unstemmed |
Impact of Biomass Burning on Arctic Aerosol Composition |
title_sort |
impact of biomass burning on arctic aerosol composition |
publishDate |
2024 |
url |
https://hdl.handle.net/11250/3129565 https://doi.org/10.1021/acsearthspacechem.3c00187 |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) |
geographic |
Aitken Arctic Svalbard |
geographic_facet |
Aitken Arctic Svalbard |
genre |
Arctic black carbon Svalbard |
genre_facet |
Arctic black carbon Svalbard |
op_source |
ACS Earth and Space Chemistry |
op_relation |
EC/H2020/821205 EU – Horisont Europa (EC/HEU): 101056783 NILU: 115058 Klima- og miljødepartementet: 22/3615-4 ACS Earth and Space Chemistry. 2024. urn:issn:2472-3452 https://hdl.handle.net/11250/3129565 https://doi.org/10.1021/acsearthspacechem.3c00187 cristin:2265397 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2024 The Authors. Published by American Chemical Society. |
op_doi |
https://doi.org/10.1021/acsearthspacechem.3c00187 |
container_title |
ACS Earth and Space Chemistry |
container_volume |
8 |
container_issue |
5 |
container_start_page |
920 |
op_container_end_page |
936 |
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1809762406732136448 |