Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment
There are few long-term datasets of volatile organic compounds (VOCs) in the High Arctic. Furthermore, knowledge about their source regions remains lacking. To address this matter, we report a multiseason dataset of highly time-resolved VOC measurements in the High Arctic from April to October 2018....
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ftdoajarticles:oai:doaj.org/article:31753da04ed04e4c9738091fecd2ce0c 2023-05-15T14:46:04+02:00 Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment J. B. Pernov R. Bossi T. Lebourgeois J. K. Nøjgaard R. Holzinger J. L. Hjorth H. Skov 2021-02-01T00:00:00Z https://doi.org/10.5194/acp-21-2895-2021 https://doaj.org/article/31753da04ed04e4c9738091fecd2ce0c EN eng Copernicus Publications https://acp.copernicus.org/articles/21/2895/2021/acp-21-2895-2021.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-21-2895-2021 1680-7316 1680-7324 https://doaj.org/article/31753da04ed04e4c9738091fecd2ce0c Atmospheric Chemistry and Physics, Vol 21, Pp 2895-2916 (2021) Physics QC1-999 Chemistry QD1-999 article 2021 ftdoajarticles https://doi.org/10.5194/acp-21-2895-2021 2022-12-31T15:42:53Z There are few long-term datasets of volatile organic compounds (VOCs) in the High Arctic. Furthermore, knowledge about their source regions remains lacking. To address this matter, we report a multiseason dataset of highly time-resolved VOC measurements in the High Arctic from April to October 2018. We have utilized a combination of measurement and modeling techniques to characterize the mixing ratios, temporal patterns, and sources of VOCs at the Villum Research Station at Station Nord in northeastern Greenland. Atmospheric VOCs were measured using proton-transfer-reaction time-of-flight mass spectrometry. Ten ions were selected for source apportionment with the positive matrix factorization (PMF) receptor model. A four-factor solution to the PMF model was deemed optimal. The factors identified were biomass burning, marine cryosphere, background, and Arctic haze. The biomass burning factor described the variation of acetonitrile and benzene and peaked during August and September. The marine cryosphere factor was comprised of carboxylic acids (formic, acetic, and C 3 H 6 O 2 ) as well as dimethyl sulfide (DMS). This factor displayed peak contributions during periods of snow and sea ice melt. A potential source contribution function (PSCF) showed that the source regions for this factor were the coasts around southeastern and northeastern Greenland. The background factor was temporally ubiquitous, with a slight decrease in the summer. This factor was not driven by any individual chemical species. The Arctic haze factor was dominated by benzene with contributions from oxygenated VOCs. This factor exhibited a maximum in the spring and minima during the summer and autumn. This temporal pattern and species profile are indicative of anthropogenic sources in the midlatitudes. This study provides seasonal characteristics and sources of VOCs and can help elucidate the processes affecting the atmospheric chemistry and biogeochemical feedback mechanisms in the High Arctic. Article in Journal/Newspaper Arctic Greenland Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Greenland Station Nord ENVELOPE(-16.663,-16.663,81.599,81.599) Atmospheric Chemistry and Physics 21 4 2895 2916 |
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 J. B. Pernov R. Bossi T. Lebourgeois J. K. Nøjgaard R. Holzinger J. L. Hjorth H. Skov Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
There are few long-term datasets of volatile organic compounds (VOCs) in the High Arctic. Furthermore, knowledge about their source regions remains lacking. To address this matter, we report a multiseason dataset of highly time-resolved VOC measurements in the High Arctic from April to October 2018. We have utilized a combination of measurement and modeling techniques to characterize the mixing ratios, temporal patterns, and sources of VOCs at the Villum Research Station at Station Nord in northeastern Greenland. Atmospheric VOCs were measured using proton-transfer-reaction time-of-flight mass spectrometry. Ten ions were selected for source apportionment with the positive matrix factorization (PMF) receptor model. A four-factor solution to the PMF model was deemed optimal. The factors identified were biomass burning, marine cryosphere, background, and Arctic haze. The biomass burning factor described the variation of acetonitrile and benzene and peaked during August and September. The marine cryosphere factor was comprised of carboxylic acids (formic, acetic, and C 3 H 6 O 2 ) as well as dimethyl sulfide (DMS). This factor displayed peak contributions during periods of snow and sea ice melt. A potential source contribution function (PSCF) showed that the source regions for this factor were the coasts around southeastern and northeastern Greenland. The background factor was temporally ubiquitous, with a slight decrease in the summer. This factor was not driven by any individual chemical species. The Arctic haze factor was dominated by benzene with contributions from oxygenated VOCs. This factor exhibited a maximum in the spring and minima during the summer and autumn. This temporal pattern and species profile are indicative of anthropogenic sources in the midlatitudes. This study provides seasonal characteristics and sources of VOCs and can help elucidate the processes affecting the atmospheric chemistry and biogeochemical feedback mechanisms in the High Arctic. |
format |
Article in Journal/Newspaper |
author |
J. B. Pernov R. Bossi T. Lebourgeois J. K. Nøjgaard R. Holzinger J. L. Hjorth H. Skov |
author_facet |
J. B. Pernov R. Bossi T. Lebourgeois J. K. Nøjgaard R. Holzinger J. L. Hjorth H. Skov |
author_sort |
J. B. Pernov |
title |
Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment |
title_short |
Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment |
title_full |
Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment |
title_fullStr |
Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment |
title_full_unstemmed |
Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment |
title_sort |
atmospheric voc measurements at a high arctic site: characteristics and source apportionment |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/acp-21-2895-2021 https://doaj.org/article/31753da04ed04e4c9738091fecd2ce0c |
long_lat |
ENVELOPE(-16.663,-16.663,81.599,81.599) |
geographic |
Arctic Greenland Station Nord |
geographic_facet |
Arctic Greenland Station Nord |
genre |
Arctic Greenland Sea ice |
genre_facet |
Arctic Greenland Sea ice |
op_source |
Atmospheric Chemistry and Physics, Vol 21, Pp 2895-2916 (2021) |
op_relation |
https://acp.copernicus.org/articles/21/2895/2021/acp-21-2895-2021.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-21-2895-2021 1680-7316 1680-7324 https://doaj.org/article/31753da04ed04e4c9738091fecd2ce0c |
op_doi |
https://doi.org/10.5194/acp-21-2895-2021 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
21 |
container_issue |
4 |
container_start_page |
2895 |
op_container_end_page |
2916 |
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1766317338866483200 |