Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere
Size-resolved and vertical profile measurements of single particle chemical composition (sampling altitude range 50–3000 m) were conducted in July 2014 in the Canadian high Arctic during an aircraft-based measurement campaign (NETCARE 2014). We deployed the single particle laser ablation aerosol mas...
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ftdoajarticles:oai:doaj.org/article:de17b0b018ec4277b575c8bc606b9b59 2023-05-15T14:36:56+02:00 Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere F. Köllner J. Schneider M. D. Willis T. Klimach F. Helleis H. Bozem D. Kunkel P. Hoor J. Burkart W. R. Leaitch A. A. Aliabadi J. P. D. Abbatt A. B. Herber S. Borrmann 2017-11-01T00:00:00Z https://doi.org/10.5194/acp-17-13747-2017 https://doaj.org/article/de17b0b018ec4277b575c8bc606b9b59 EN eng Copernicus Publications https://www.atmos-chem-phys.net/17/13747/2017/acp-17-13747-2017.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-17-13747-2017 1680-7316 1680-7324 https://doaj.org/article/de17b0b018ec4277b575c8bc606b9b59 Atmospheric Chemistry and Physics, Vol 17, Pp 13747-13766 (2017) Physics QC1-999 Chemistry QD1-999 article 2017 ftdoajarticles https://doi.org/10.5194/acp-17-13747-2017 2022-12-31T02:44:46Z Size-resolved and vertical profile measurements of single particle chemical composition (sampling altitude range 50–3000 m) were conducted in July 2014 in the Canadian high Arctic during an aircraft-based measurement campaign (NETCARE 2014). We deployed the single particle laser ablation aerosol mass spectrometer ALABAMA (vacuum aerodynamic diameter range approximately 200–1000 nm) to identify different particle types and their mixing states. On the basis of the single particle analysis, we found that a significant fraction (23 %) of all analyzed particles (in total: 7412) contained trimethylamine (TMA). Two main pieces of evidence suggest that these TMA-containing particles originated from emissions within the Arctic boundary layer. First, the maximum fraction of particulate TMA occurred in the Arctic boundary layer. Second, compared to particles observed aloft, TMA particles were smaller and less oxidized. Further, air mass history analysis, associated wind data and comparison with measurements of methanesulfonic acid give evidence of a marine-biogenic influence on particulate TMA. Moreover, the external mixture of TMA-containing particles and sodium and chloride (<q>Na ∕ Cl-</q>) containing particles, together with low wind speeds, suggests particulate TMA results from secondary conversion of precursor gases released by the ocean. In contrast to TMA-containing particles originating from inner-Arctic sources, particles with biomass burning markers (such as levoglucosan and potassium) showed a higher fraction at higher altitudes, indicating long-range transport as their source. Our measurements highlight the importance of natural, marine inner-Arctic sources for composition and growth of summertime Arctic aerosol. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Alabama Arctic Atmospheric Chemistry and Physics 17 22 13747 13766 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 F. Köllner J. Schneider M. D. Willis T. Klimach F. Helleis H. Bozem D. Kunkel P. Hoor J. Burkart W. R. Leaitch A. A. Aliabadi J. P. D. Abbatt A. B. Herber S. Borrmann Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Size-resolved and vertical profile measurements of single particle chemical composition (sampling altitude range 50–3000 m) were conducted in July 2014 in the Canadian high Arctic during an aircraft-based measurement campaign (NETCARE 2014). We deployed the single particle laser ablation aerosol mass spectrometer ALABAMA (vacuum aerodynamic diameter range approximately 200–1000 nm) to identify different particle types and their mixing states. On the basis of the single particle analysis, we found that a significant fraction (23 %) of all analyzed particles (in total: 7412) contained trimethylamine (TMA). Two main pieces of evidence suggest that these TMA-containing particles originated from emissions within the Arctic boundary layer. First, the maximum fraction of particulate TMA occurred in the Arctic boundary layer. Second, compared to particles observed aloft, TMA particles were smaller and less oxidized. Further, air mass history analysis, associated wind data and comparison with measurements of methanesulfonic acid give evidence of a marine-biogenic influence on particulate TMA. Moreover, the external mixture of TMA-containing particles and sodium and chloride (<q>Na ∕ Cl-</q>) containing particles, together with low wind speeds, suggests particulate TMA results from secondary conversion of precursor gases released by the ocean. In contrast to TMA-containing particles originating from inner-Arctic sources, particles with biomass burning markers (such as levoglucosan and potassium) showed a higher fraction at higher altitudes, indicating long-range transport as their source. Our measurements highlight the importance of natural, marine inner-Arctic sources for composition and growth of summertime Arctic aerosol. |
format |
Article in Journal/Newspaper |
author |
F. Köllner J. Schneider M. D. Willis T. Klimach F. Helleis H. Bozem D. Kunkel P. Hoor J. Burkart W. R. Leaitch A. A. Aliabadi J. P. D. Abbatt A. B. Herber S. Borrmann |
author_facet |
F. Köllner J. Schneider M. D. Willis T. Klimach F. Helleis H. Bozem D. Kunkel P. Hoor J. Burkart W. R. Leaitch A. A. Aliabadi J. P. D. Abbatt A. B. Herber S. Borrmann |
author_sort |
F. Köllner |
title |
Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere |
title_short |
Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere |
title_full |
Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere |
title_fullStr |
Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere |
title_full_unstemmed |
Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere |
title_sort |
particulate trimethylamine in the summertime canadian high arctic lower troposphere |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/acp-17-13747-2017 https://doaj.org/article/de17b0b018ec4277b575c8bc606b9b59 |
geographic |
Alabama Arctic |
geographic_facet |
Alabama Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Atmospheric Chemistry and Physics, Vol 17, Pp 13747-13766 (2017) |
op_relation |
https://www.atmos-chem-phys.net/17/13747/2017/acp-17-13747-2017.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-17-13747-2017 1680-7316 1680-7324 https://doaj.org/article/de17b0b018ec4277b575c8bc606b9b59 |
op_doi |
https://doi.org/10.5194/acp-17-13747-2017 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
17 |
container_issue |
22 |
container_start_page |
13747 |
op_container_end_page |
13766 |
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1766309453161824256 |