Articles | Volume 18, issue 21
Atmos. Chem. Phys., 18, 16121–16137, 2018
https://doi.org/10.5194/acp-18-16121-2018
Atmos. Chem. Phys., 18, 16121–16137, 2018
https://doi.org/10.5194/acp-18-16121-2018

Research article 09 Nov 2018

Research article | 09 Nov 2018

Effects of meteorology and emissions on urban air quality: a quantitative statistical approach to long-term records (1999–2016) in Seoul, South Korea

Jihoon Seo et al.

Data sets

The ERA-Interim reanalysis: configuration and performance of the data assimilation system D. P. Dee, S. M. Uppala, A. J. Simmons, P. Berrisford, P. Poli, S. Kobayashi, U. Andrae, M. A. Balmaseda, G. Balsamo, P. Bauer, P. Bechtold, A. C. M. Beljaars, L. van de Berg, J. Bidlot, N. Bormann, C. Delsol, R. Dragani, M. Fuentes, A. J. Geer, L. Haimberger, S. B. Healy, H. Hersbach, E. V. H\'{o}lm, L. Isaksen, P. K{\aa}llberg, M. K\"{o}hler, M. Matricardi, A. P. McNally, B. M. Monge-Sanz, J.-J. Morcrette, B.-K. Park, C. Peubey, P. de Rosnay, C. Tavolato, J.-N. Th\'{e}paut, and F. Vitart https://doi.org/10.1002/qj.828

Data from the NIER air quality monitoring sites Korea Environment Corporation https://www.airkorea.or.kr/last_amb_hour_data

Automated Synoptic Observing System (ASOS) data KMA (Korea Meteorological Administration) https://data.kma.go.kr/data/grnd/selectAsosRltmList.do?pgmNo=36

Asian Dust observation days KMA (Korea Meteorological Administration) http://www.weather.go.kr/weather/asiandust/observday.jsp?type=2&stnId=108&year=2016&x=20&y=11

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Short summary
Urban air pollution is affected by both emissions and meteorology. Using the recent 18 yr long measurements of air pollutants in the East Asian megacity of Seoul, we quantitatively investigated effects on short-term and long-term air quality. Specific synoptic weather patterns were important for episodic PM10 and O3 events, while the long-term decrease in wind speed and the 2008 economic recession played roles in the recent improvement of PM10 and deterioration of O3 air quality in Seoul.
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