Air quality monitoring in communities of the Canadian Arctic during the high shipping season with a focus on local and marine pollution
The Canadian Arctic has experienced decreasing sea ice extent and increasing shipping activity in recent decades. While there are economic incentives to develop resources in the north, there are environmental concerns that increasing marine traffic will contribute to declining air quality in norther...
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ftdoajarticles:oai:doaj.org/article:a8e7049eaf23480599440880acc6ec1e 2023-05-15T15:03:44+02:00 Air quality monitoring in communities of the Canadian Arctic during the high shipping season with a focus on local and marine pollution A. A. Aliabadi R. M. Staebler S. Sharma 2015-03-01T00:00:00Z https://doi.org/10.5194/acp-15-2651-2015 https://doaj.org/article/a8e7049eaf23480599440880acc6ec1e EN eng Copernicus Publications http://www.atmos-chem-phys.net/15/2651/2015/acp-15-2651-2015.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 doi:10.5194/acp-15-2651-2015 https://doaj.org/article/a8e7049eaf23480599440880acc6ec1e Atmospheric Chemistry and Physics, Vol 15, Iss 5, Pp 2651-2673 (2015) Physics QC1-999 Chemistry QD1-999 article 2015 ftdoajarticles https://doi.org/10.5194/acp-15-2651-2015 2022-12-31T00:18:15Z The Canadian Arctic has experienced decreasing sea ice extent and increasing shipping activity in recent decades. While there are economic incentives to develop resources in the north, there are environmental concerns that increasing marine traffic will contribute to declining air quality in northern communities. In an effort to characterize the relative impact of shipping on air quality in the north, two monitoring stations have been installed in Cape Dorset and Resolute, Nunavut, and have been operational since 1 June 2013. The impact of shipping and other sources of emissions on NO x , O 3 , SO 2 , BC, and PM 2.5 pollution have been characterized for the 2013 shipping season from 1 June to 1 November. In addition, a high-resolution Air Quality Health Index (AQHI) for both sites was computed. Shipping consistently increased O 3 mixing ratio and PM 2.5 concentration. The 90% confidence interval for mean difference in O 3 mixing ratio between ship- and no ship-influenced air masses were up to 4.6–4.7 ppb and 2.5–2.7 ppb for Cape Dorset and Resolute, respectively. The same intervals for PM 2.5 concentrations were up to 1.8–1.9 μg m −3 and 0.5–0.6 μg m −3 . Ship-influenced air masses consistently exhibited an increase of 0.1 to 0.3 in the high-resolution AQHI compared to no ship-influenced air masses. Trajectory cluster analysis in combination with ship traffic tracking provided an estimated range for percent ship contribution to NO x , O 3 , SO 2 , and PM 2.5 that were 12.9–17.5 %, 16.2–18.1 %, 16.9–18.3 %, and 19.5–31.7 % for Cape Dorset and 1.0–7.2 %, 2.9–4.8 %, 5.5–10.0 %, and 6.5–7.2 % for Resolute during the 2013 shipping season. Additional measurements in Resolute suggested that percent ship contribution to black carbon was 4.3–9.8 % and that black carbon constituted 1.3–9.7 % of total PM 2.5 mass in ship plumes. Continued air quality monitoring in the above sites for future shipping seasons will improve the statistics in our analysis and characterize repeating seasonal patterns in air quality due to ... Article in Journal/Newspaper Arctic black carbon Cape Dorset Nunavut Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Cape Dorset ENVELOPE(-76.482,-76.482,64.179,64.179) Nunavut Atmospheric Chemistry and Physics 15 5 2651 2673 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Physics QC1-999 Chemistry QD1-999 |
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Physics QC1-999 Chemistry QD1-999 A. A. Aliabadi R. M. Staebler S. Sharma Air quality monitoring in communities of the Canadian Arctic during the high shipping season with a focus on local and marine pollution |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
The Canadian Arctic has experienced decreasing sea ice extent and increasing shipping activity in recent decades. While there are economic incentives to develop resources in the north, there are environmental concerns that increasing marine traffic will contribute to declining air quality in northern communities. In an effort to characterize the relative impact of shipping on air quality in the north, two monitoring stations have been installed in Cape Dorset and Resolute, Nunavut, and have been operational since 1 June 2013. The impact of shipping and other sources of emissions on NO x , O 3 , SO 2 , BC, and PM 2.5 pollution have been characterized for the 2013 shipping season from 1 June to 1 November. In addition, a high-resolution Air Quality Health Index (AQHI) for both sites was computed. Shipping consistently increased O 3 mixing ratio and PM 2.5 concentration. The 90% confidence interval for mean difference in O 3 mixing ratio between ship- and no ship-influenced air masses were up to 4.6–4.7 ppb and 2.5–2.7 ppb for Cape Dorset and Resolute, respectively. The same intervals for PM 2.5 concentrations were up to 1.8–1.9 μg m −3 and 0.5–0.6 μg m −3 . Ship-influenced air masses consistently exhibited an increase of 0.1 to 0.3 in the high-resolution AQHI compared to no ship-influenced air masses. Trajectory cluster analysis in combination with ship traffic tracking provided an estimated range for percent ship contribution to NO x , O 3 , SO 2 , and PM 2.5 that were 12.9–17.5 %, 16.2–18.1 %, 16.9–18.3 %, and 19.5–31.7 % for Cape Dorset and 1.0–7.2 %, 2.9–4.8 %, 5.5–10.0 %, and 6.5–7.2 % for Resolute during the 2013 shipping season. Additional measurements in Resolute suggested that percent ship contribution to black carbon was 4.3–9.8 % and that black carbon constituted 1.3–9.7 % of total PM 2.5 mass in ship plumes. Continued air quality monitoring in the above sites for future shipping seasons will improve the statistics in our analysis and characterize repeating seasonal patterns in air quality due to ... |
format |
Article in Journal/Newspaper |
author |
A. A. Aliabadi R. M. Staebler S. Sharma |
author_facet |
A. A. Aliabadi R. M. Staebler S. Sharma |
author_sort |
A. A. Aliabadi |
title |
Air quality monitoring in communities of the Canadian Arctic during the high shipping season with a focus on local and marine pollution |
title_short |
Air quality monitoring in communities of the Canadian Arctic during the high shipping season with a focus on local and marine pollution |
title_full |
Air quality monitoring in communities of the Canadian Arctic during the high shipping season with a focus on local and marine pollution |
title_fullStr |
Air quality monitoring in communities of the Canadian Arctic during the high shipping season with a focus on local and marine pollution |
title_full_unstemmed |
Air quality monitoring in communities of the Canadian Arctic during the high shipping season with a focus on local and marine pollution |
title_sort |
air quality monitoring in communities of the canadian arctic during the high shipping season with a focus on local and marine pollution |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://doi.org/10.5194/acp-15-2651-2015 https://doaj.org/article/a8e7049eaf23480599440880acc6ec1e |
long_lat |
ENVELOPE(-76.482,-76.482,64.179,64.179) |
geographic |
Arctic Cape Dorset Nunavut |
geographic_facet |
Arctic Cape Dorset Nunavut |
genre |
Arctic black carbon Cape Dorset Nunavut Sea ice |
genre_facet |
Arctic black carbon Cape Dorset Nunavut Sea ice |
op_source |
Atmospheric Chemistry and Physics, Vol 15, Iss 5, Pp 2651-2673 (2015) |
op_relation |
http://www.atmos-chem-phys.net/15/2651/2015/acp-15-2651-2015.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 doi:10.5194/acp-15-2651-2015 https://doaj.org/article/a8e7049eaf23480599440880acc6ec1e |
op_doi |
https://doi.org/10.5194/acp-15-2651-2015 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
15 |
container_issue |
5 |
container_start_page |
2651 |
op_container_end_page |
2673 |
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1766335591028359168 |