Influence of Atmospheric Circulation Patterns on Urban Air Quality During the Winter
Relationships between urban nitrogen dioxide (NO2) and atmospheric circulation at two spatial scales were studied for Southern Sweden. Lamb Weather Types (LWT) describe the circulation (scale: thousands of kilometers) including non–directional (cyclonic and anticyclonic) and directional types depend...
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ftunivworcester:oai:wrap.eprints.org:7217 2023-05-15T17:33:54+02:00 Influence of Atmospheric Circulation Patterns on Urban Air Quality During the Winter Grundström, Maria Tang, L. Hallquist, M. Nguyen, H. Chen, D. Pleijel, H. 2015-03 text http://eprints.worc.ac.uk/7217/ https://eprints.worc.ac.uk/7217/2/Grundstrom_etal_2015a.pdf https://doi.org/10.5094/APR.2015.032 en eng Elsevier https://eprints.worc.ac.uk/7217/2/Grundstrom_etal_2015a.pdf Grundström, Maria, Tang, L., Hallquist, M., Nguyen, H., Chen, D. and Pleijel, H. (2015) Influence of Atmospheric Circulation Patterns on Urban Air Quality During the Winter. Atmospheric Pollution Research, 6 (2). pp. 278-285. ISSN 1309-1042 doi:10.5094/APR.2015.032 cc_by_nc_nd CC-BY-NC-ND GE Environmental Sciences Article PeerReviewed 2015 ftunivworcester https://doi.org/10.5094/APR.2015.032 2022-03-02T19:59:42Z Relationships between urban nitrogen dioxide (NO2) and atmospheric circulation at two spatial scales were studied for Southern Sweden. Lamb Weather Types (LWT) describe the circulation (scale: thousands of kilometers) including non–directional (cyclonic and anticyclonic) and directional types depending on the wind direction. LWTs with low wind speeds (anticyclonic, NW and N) were associated with strongly elevated [NO2], between 46–52% of the daily averages of NO2 exceeded the 60 μg m−3 air quality standard (AQS) when occurring during these LWTs. The lowest fractions of exceedances of NO2 AQS were generally observed for LWTs E, S, SW and W. A larger scale circulation (several thousands of kilometers) was represented by the North Atlantic Oscillation (NAO) affecting meteorology over middle and high latitudes in the Northern Hemisphere. While a negative NAO index (NAOI) favors stagnant high pressure weather over Northern Europe, a positive NAOI is often associated with windy conditions. High [NO2] was found to be frequent under negative NAOI. Additionally, larger fractions of exceedances of NO2 AQS were observed for the majority of LWTs occurring at negative NAOI. It’s concluded that both LWTs and NAOI had partly independent effects on the urban air quality in a North European city. These circulation indices can be useful tools for air pollution risk assessment and forecasting. Article in Journal/Newspaper North Atlantic North Atlantic oscillation University of Worcester: Worcester Research and Publications Atmospheric Pollution Research 6 2 278 285 |
institution |
Open Polar |
collection |
University of Worcester: Worcester Research and Publications |
op_collection_id |
ftunivworcester |
language |
English |
topic |
GE Environmental Sciences |
spellingShingle |
GE Environmental Sciences Grundström, Maria Tang, L. Hallquist, M. Nguyen, H. Chen, D. Pleijel, H. Influence of Atmospheric Circulation Patterns on Urban Air Quality During the Winter |
topic_facet |
GE Environmental Sciences |
description |
Relationships between urban nitrogen dioxide (NO2) and atmospheric circulation at two spatial scales were studied for Southern Sweden. Lamb Weather Types (LWT) describe the circulation (scale: thousands of kilometers) including non–directional (cyclonic and anticyclonic) and directional types depending on the wind direction. LWTs with low wind speeds (anticyclonic, NW and N) were associated with strongly elevated [NO2], between 46–52% of the daily averages of NO2 exceeded the 60 μg m−3 air quality standard (AQS) when occurring during these LWTs. The lowest fractions of exceedances of NO2 AQS were generally observed for LWTs E, S, SW and W. A larger scale circulation (several thousands of kilometers) was represented by the North Atlantic Oscillation (NAO) affecting meteorology over middle and high latitudes in the Northern Hemisphere. While a negative NAO index (NAOI) favors stagnant high pressure weather over Northern Europe, a positive NAOI is often associated with windy conditions. High [NO2] was found to be frequent under negative NAOI. Additionally, larger fractions of exceedances of NO2 AQS were observed for the majority of LWTs occurring at negative NAOI. It’s concluded that both LWTs and NAOI had partly independent effects on the urban air quality in a North European city. These circulation indices can be useful tools for air pollution risk assessment and forecasting. |
format |
Article in Journal/Newspaper |
author |
Grundström, Maria Tang, L. Hallquist, M. Nguyen, H. Chen, D. Pleijel, H. |
author_facet |
Grundström, Maria Tang, L. Hallquist, M. Nguyen, H. Chen, D. Pleijel, H. |
author_sort |
Grundström, Maria |
title |
Influence of Atmospheric Circulation Patterns on Urban Air Quality During the Winter |
title_short |
Influence of Atmospheric Circulation Patterns on Urban Air Quality During the Winter |
title_full |
Influence of Atmospheric Circulation Patterns on Urban Air Quality During the Winter |
title_fullStr |
Influence of Atmospheric Circulation Patterns on Urban Air Quality During the Winter |
title_full_unstemmed |
Influence of Atmospheric Circulation Patterns on Urban Air Quality During the Winter |
title_sort |
influence of atmospheric circulation patterns on urban air quality during the winter |
publisher |
Elsevier |
publishDate |
2015 |
url |
http://eprints.worc.ac.uk/7217/ https://eprints.worc.ac.uk/7217/2/Grundstrom_etal_2015a.pdf https://doi.org/10.5094/APR.2015.032 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
https://eprints.worc.ac.uk/7217/2/Grundstrom_etal_2015a.pdf Grundström, Maria, Tang, L., Hallquist, M., Nguyen, H., Chen, D. and Pleijel, H. (2015) Influence of Atmospheric Circulation Patterns on Urban Air Quality During the Winter. Atmospheric Pollution Research, 6 (2). pp. 278-285. ISSN 1309-1042 doi:10.5094/APR.2015.032 |
op_rights |
cc_by_nc_nd |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.5094/APR.2015.032 |
container_title |
Atmospheric Pollution Research |
container_volume |
6 |
container_issue |
2 |
container_start_page |
278 |
op_container_end_page |
285 |
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1766132556977143808 |