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ACP | Articles | Volume 18, issue 21
Atmos. Chem. Phys., 18, 16121–16137, 2018
https://doi.org/10.5194/acp-18-16121-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 18, 16121–16137, 2018
https://doi.org/10.5194/acp-18-16121-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

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.

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Alvarez, R., Weilenmann, M., and Favez, J.-Y.: Evidence of increased mass fraction of NO2 within real-world NOx emissions of modern light vehicles – derived from a reliable online measuring method, Atmos. Environ., 42, 4699–4707, https://doi.org/10.1016/j.atmosenv.2008.01.046, 2008. 
Cai, W., Li, K., Liao, H., Wang, H., and Wu, L.: Weather conditions conducive to Beijing severe haze more frequent under climate change, Nat. Clim. Change, 7, 257–262, https://doi.org/10.1038/nclimate3249, 2017. 
Eskridge, R. E., Ku, J. Y., Rao, S. T., Porter, P. S., and Zurbenko, I. G.: Separating different scales of motion in time scales of motion in time series of meteorological variables, B. Am. Meteorol. Soc., 78, 1473–1483, https://doi.org/10.1175/1520-0477(1997)078<1473:SDSOMI>2.0.CO;2, 1997. 
Ghim, Y. S., Chang, Y.-S., and Jung, K.: Temporal and spatial variations in fine and coarse particles in Seoul, Korea, Aerosol Air Qual. Res., 15, 842–852, https://doi.org/10.4209/aaqr.2013.12.0362, 2015. 
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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.
Urban air pollution is affected by both emissions and meteorology. Using the recent 18 yr long...
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