Polycyclic aromatic hydrocarbons (PAHs) and their nitrated and oxygenated derivatives in the Arctic boundary layer: seasonal trends and local anthropogenic influence
A total of 22 polycyclic aromatic hydrocarbons (PAHs), 29 oxy-PAHs, and 35 nitro-PAHs (polycyclic aromatic compounds, PACs) were measured in gaseous and particulate phases in the ambient air of Longyearbyen, the most populated settlement in Svalbard, the European Arctic. The sampling campaign starte...
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ftcopernicus:oai:publications.copernicus.org:acp93307 2023-05-15T14:52:37+02:00 Polycyclic aromatic hydrocarbons (PAHs) and their nitrated and oxygenated derivatives in the Arctic boundary layer: seasonal trends and local anthropogenic influence Drotikova, Tatiana Dekhtyareva, Alena Kallenborn, Roland Albinet, Alexandre 2021-09-28 application/pdf https://doi.org/10.5194/acp-21-14351-2021 https://acp.copernicus.org/articles/21/14351/2021/ eng eng doi:10.5194/acp-21-14351-2021 https://acp.copernicus.org/articles/21/14351/2021/ eISSN: 1680-7324 Text 2021 ftcopernicus https://doi.org/10.5194/acp-21-14351-2021 2021-10-04T16:22:28Z A total of 22 polycyclic aromatic hydrocarbons (PAHs), 29 oxy-PAHs, and 35 nitro-PAHs (polycyclic aromatic compounds, PACs) were measured in gaseous and particulate phases in the ambient air of Longyearbyen, the most populated settlement in Svalbard, the European Arctic. The sampling campaign started in the polar night in November 2017 and lasted for 8 months until June 2018, when a light cycle reached a sunlit period with no night. The transport regimes of the near-surface, potentially polluted air masses from midlatitudes to the Arctic and the polar boundary layer meteorology were studied. The data analysis showed the observed winter PAC levels were mainly influenced by the lower-latitude sources in northwestern Eurasia, while local emissions dominated in spring and summer. The highest PAC concentrations observed in spring, with PAH concentrations a factor of 30 higher compared to the measurements at the closest background station in Svalbard (Zeppelin, 115 km distance from Longyearbyen), were attributed to local snowmobile-driving emissions. The lowest PAC concentrations were expected in summer due to enhanced photochemical degradation under the 24 h midnight sun conditions and inhibited long-range atmospheric transport. In contrast, the measured summer concentrations were notably higher than those in winter due to the harbour (ship) emissions. Text Arctic Longyearbyen polar night Svalbard midnight sun Copernicus Publications: E-Journals Arctic Longyearbyen Svalbard Atmospheric Chemistry and Physics 21 18 14351 14370 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
A total of 22 polycyclic aromatic hydrocarbons (PAHs), 29 oxy-PAHs, and 35 nitro-PAHs (polycyclic aromatic compounds, PACs) were measured in gaseous and particulate phases in the ambient air of Longyearbyen, the most populated settlement in Svalbard, the European Arctic. The sampling campaign started in the polar night in November 2017 and lasted for 8 months until June 2018, when a light cycle reached a sunlit period with no night. The transport regimes of the near-surface, potentially polluted air masses from midlatitudes to the Arctic and the polar boundary layer meteorology were studied. The data analysis showed the observed winter PAC levels were mainly influenced by the lower-latitude sources in northwestern Eurasia, while local emissions dominated in spring and summer. The highest PAC concentrations observed in spring, with PAH concentrations a factor of 30 higher compared to the measurements at the closest background station in Svalbard (Zeppelin, 115 km distance from Longyearbyen), were attributed to local snowmobile-driving emissions. The lowest PAC concentrations were expected in summer due to enhanced photochemical degradation under the 24 h midnight sun conditions and inhibited long-range atmospheric transport. In contrast, the measured summer concentrations were notably higher than those in winter due to the harbour (ship) emissions. |
format |
Text |
author |
Drotikova, Tatiana Dekhtyareva, Alena Kallenborn, Roland Albinet, Alexandre |
spellingShingle |
Drotikova, Tatiana Dekhtyareva, Alena Kallenborn, Roland Albinet, Alexandre Polycyclic aromatic hydrocarbons (PAHs) and their nitrated and oxygenated derivatives in the Arctic boundary layer: seasonal trends and local anthropogenic influence |
author_facet |
Drotikova, Tatiana Dekhtyareva, Alena Kallenborn, Roland Albinet, Alexandre |
author_sort |
Drotikova, Tatiana |
title |
Polycyclic aromatic hydrocarbons (PAHs) and their nitrated and oxygenated derivatives in the Arctic boundary layer: seasonal trends and local anthropogenic influence |
title_short |
Polycyclic aromatic hydrocarbons (PAHs) and their nitrated and oxygenated derivatives in the Arctic boundary layer: seasonal trends and local anthropogenic influence |
title_full |
Polycyclic aromatic hydrocarbons (PAHs) and their nitrated and oxygenated derivatives in the Arctic boundary layer: seasonal trends and local anthropogenic influence |
title_fullStr |
Polycyclic aromatic hydrocarbons (PAHs) and their nitrated and oxygenated derivatives in the Arctic boundary layer: seasonal trends and local anthropogenic influence |
title_full_unstemmed |
Polycyclic aromatic hydrocarbons (PAHs) and their nitrated and oxygenated derivatives in the Arctic boundary layer: seasonal trends and local anthropogenic influence |
title_sort |
polycyclic aromatic hydrocarbons (pahs) and their nitrated and oxygenated derivatives in the arctic boundary layer: seasonal trends and local anthropogenic influence |
publishDate |
2021 |
url |
https://doi.org/10.5194/acp-21-14351-2021 https://acp.copernicus.org/articles/21/14351/2021/ |
geographic |
Arctic Longyearbyen Svalbard |
geographic_facet |
Arctic Longyearbyen Svalbard |
genre |
Arctic Longyearbyen polar night Svalbard midnight sun |
genre_facet |
Arctic Longyearbyen polar night Svalbard midnight sun |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acp-21-14351-2021 https://acp.copernicus.org/articles/21/14351/2021/ |
op_doi |
https://doi.org/10.5194/acp-21-14351-2021 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
21 |
container_issue |
18 |
container_start_page |
14351 |
op_container_end_page |
14370 |
_version_ |
1766323859803340800 |