Impact Comparison of Synoptic Meteorology and Nationwide/local Emissions on the Seoul Metropolitan Area during High PM Multi-event and Non-event Days
Meteorology and emissions play very important roles in the concentrations of air pollutants during severe haze/smog periods. This study compares the impacts of synoptic meteorology and nationwide/local emissions during high PM10 multi-event and non-event days in the Seoul Metropolitan Area (SMA). Th...
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| Format: | Article |
| Language: | English |
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Springer
2020-09-01
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| Series: | Asian Journal of Atmospheric Environment |
| Subjects: | |
| Online Access: | http://asianjae.org/_common/do.php?a=current&b=11&bidx=2112&aidx=25423 |
| _version_ | 1797713101247741952 |
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| author | Il-Soo Park Moon-Soo Park Yu Woon Jang Hyeon-Kook Kim Chang-Keun Song Jeffrey S. Owen Sang-Heon Kim Chang-Rae Cho Cheol-Hee Kim |
| author_facet | Il-Soo Park Moon-Soo Park Yu Woon Jang Hyeon-Kook Kim Chang-Keun Song Jeffrey S. Owen Sang-Heon Kim Chang-Rae Cho Cheol-Hee Kim |
| author_sort | Il-Soo Park |
| collection | DOAJ |
| description | Meteorology and emissions play very important roles in the concentrations of air pollutants during severe haze/smog periods. This study compares the impacts of synoptic meteorology and nationwide/local emissions during high PM10 multi-event and non-event days in the Seoul Metropolitan Area (SMA). The multi-event and non-event cases were selected based on daily mean PM10 concentrations in Seoul from January 2014 to March 2019. The multi-event cases in spring and winter were closely associated with weak synoptic winds, while that in autumn was due to the strong winds at the rear side of a strong cold front, which induced the Asian dust event in northeastern China and Korea. The multi-event case in spring was found to be mainly due to series of migratory anticyclones, while winter case was due to the stagnant system after northerly winds. The surrounding low pressure systems as well as high pressure systems could be important to determine whether the synoptic systems would be stagnant or not. The fractional contributions of SMA emissions to the mean PM10 and PM2.5 concentrations were 24%-35% and 22%-35% for the multi-event cases, respectively. The contributions to the maximum PM10 and PM2.5 concentrations were larger than those to the mean concentrations by 16%-23% and 19%-26% for the multi-event cases, respectively. |
| first_indexed | 2024-03-12T07:31:29Z |
| format | Article |
| id | doaj.art-bd2ee295ae7044e4895f9fbad7021c6f |
| institution | Directory Open Access Journal |
| issn | 1976-6912 2287-1160 |
| language | English |
| last_indexed | 2024-03-12T07:31:29Z |
| publishDate | 2020-09-01 |
| publisher | Springer |
| record_format | Article |
| series | Asian Journal of Atmospheric Environment |
| spelling | doaj.art-bd2ee295ae7044e4895f9fbad7021c6f2023-09-02T21:47:20ZengSpringerAsian Journal of Atmospheric Environment1976-69122287-11602020-09-0114326327910.5572/ajae.2020.14.3.263Impact Comparison of Synoptic Meteorology and Nationwide/local Emissions on the Seoul Metropolitan Area during High PM Multi-event and Non-event DaysIl-Soo Park0Moon-Soo Park1https://orcid.org/0000-0003-0551-5129Yu Woon Jang2https://orcid.org/0000-0002-9637-2532Hyeon-Kook Kim3Chang-Keun Song4https://orcid.org/0000-0002-8987-2176Jeffrey S. Owen5Sang-Heon Kim6Chang-Rae Cho7Cheol-Hee Kim8https://orcid.org/0000-0002-2967-4987Research Center for Atmospheric Environment, Hankuk University of Foreign Studies, Yongin, Republic of KoreaResearch Center for Atmospheric Environment, Hankuk University of Foreign Studies, Yongin, Republic of KoreaDepartment of Environmental Sciences, Hankuk University of Foreign Studies, Yongin, Republic of KoreaSchool of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan, Republic of KoreaSchool of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan, Republic of KoreaDepartment of Environmental Sciences, Hankuk University of Foreign Studies, Yongin, Republic of KoreaResearch Center for Atmospheric Environment, Hankuk University of Foreign Studies, Yongin, Republic of KoreaResearch Center for Atmospheric Environment, Hankuk University of Foreign Studies, Yongin, Republic of KoreaDepartment of Atmospheric Sciences, Pusan National University, Busan, Republic of KoreaMeteorology and emissions play very important roles in the concentrations of air pollutants during severe haze/smog periods. This study compares the impacts of synoptic meteorology and nationwide/local emissions during high PM10 multi-event and non-event days in the Seoul Metropolitan Area (SMA). The multi-event and non-event cases were selected based on daily mean PM10 concentrations in Seoul from January 2014 to March 2019. The multi-event cases in spring and winter were closely associated with weak synoptic winds, while that in autumn was due to the strong winds at the rear side of a strong cold front, which induced the Asian dust event in northeastern China and Korea. The multi-event case in spring was found to be mainly due to series of migratory anticyclones, while winter case was due to the stagnant system after northerly winds. The surrounding low pressure systems as well as high pressure systems could be important to determine whether the synoptic systems would be stagnant or not. The fractional contributions of SMA emissions to the mean PM10 and PM2.5 concentrations were 24%-35% and 22%-35% for the multi-event cases, respectively. The contributions to the maximum PM10 and PM2.5 concentrations were larger than those to the mean concentrations by 16%-23% and 19%-26% for the multi-event cases, respectively.http://asianjae.org/_common/do.php?a=current&b=11&bidx=2112&aidx=25423seoul metropolitan areahigh pm10 multi-event dayssynoptic meteorologyhaze and smognationwide/local emission |
| spellingShingle | Il-Soo Park Moon-Soo Park Yu Woon Jang Hyeon-Kook Kim Chang-Keun Song Jeffrey S. Owen Sang-Heon Kim Chang-Rae Cho Cheol-Hee Kim Impact Comparison of Synoptic Meteorology and Nationwide/local Emissions on the Seoul Metropolitan Area during High PM Multi-event and Non-event Days Asian Journal of Atmospheric Environment seoul metropolitan area high pm10 multi-event days synoptic meteorology haze and smog nationwide/local emission |
| title | Impact Comparison of Synoptic Meteorology and Nationwide/local Emissions on the Seoul Metropolitan Area during High PM Multi-event and Non-event Days |
| title_full | Impact Comparison of Synoptic Meteorology and Nationwide/local Emissions on the Seoul Metropolitan Area during High PM Multi-event and Non-event Days |
| title_fullStr | Impact Comparison of Synoptic Meteorology and Nationwide/local Emissions on the Seoul Metropolitan Area during High PM Multi-event and Non-event Days |
| title_full_unstemmed | Impact Comparison of Synoptic Meteorology and Nationwide/local Emissions on the Seoul Metropolitan Area during High PM Multi-event and Non-event Days |
| title_short | Impact Comparison of Synoptic Meteorology and Nationwide/local Emissions on the Seoul Metropolitan Area during High PM Multi-event and Non-event Days |
| title_sort | impact comparison of synoptic meteorology and nationwide local emissions on the seoul metropolitan area during high pm multi event and non event days |
| topic | seoul metropolitan area high pm10 multi-event days synoptic meteorology haze and smog nationwide/local emission |
| url | http://asianjae.org/_common/do.php?a=current&b=11&bidx=2112&aidx=25423 |
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