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Characteristics of Air Quality in the West-coastal Urban Atmosphere

서해연안 도시지역의 대기질 특성 연구: 군산과 전주의 대기질 비교를 중심으로

  • Kim, Deug-Soo (Department of Environmental Engineering, Atmospheric Environmental Laboratory Kunsan National University) ;
  • Ma, Hui (Department of Environmental Engineering, Atmospheric Environmental Laboratory Kunsan National University)
  • 김득수 (군산대학교 공과대학 환경공학과 대기환경연구실) ;
  • 마휘 (군산대학교 공과대학 환경공학과 대기환경연구실)
  • Published : 2009.12.31

Abstract

This study is to investigate the air pollution characteristics of an industrialized midsize west-coastal city by comparing air quality to a neighboring inland city. The hourly averaged data of $O_3$, $SO_2$, $NO_2$, CO, and $PM_{10}$ measured from continuous air quality monitoring sites in Gunsan (coastal) and Jeonju (inland) were analyzed. The data set covers the period from 2004 to 2006. The annual average concentrations of the air pollutants in two cities were compared in their abundances and temporal trends as well. $O_3$ and $SO_2$ in Gunsan were relatively higher than those in Jeonju, while vice versa in case of $NO_2$ and $PM_{10}$. It seems that heavy automobile emissions from Jeonju mainly bring on higher $NO_2$ and $PM_{10}$ than those in Gunsan on annual base. $NO_2$ concentrations in both cities showed bimodal diurnal variations with peaks in the morning and in the late evening. These peaks correspond to the coupled effects of rush hour traffic and meteorological conditions (i.e., variation of mixing height and dispersion conditions). Maximum hourly averages of $NO_2$ ranged from 18 ppb to 28 ppb at Jeonju, and from 12 ppb to 20 ppb at Gunsan. $O_3$ showed typical diurnal variation with a maximum in the afternoon between 14:00 and 16:00 LST. Diurnal variations of CO and $PM_{10}$ were similar to $NO_2$ while $SO_2$ was similar to $O_3$. Seasonal variations of $PM_{10}$ in both cities indicated that their concentrations during spring season were significantly high. Asian dust storms occur frequently during spring and seem to affect increase in $PM_{10}$. High $O_3$ and $PM_{10}$ days were selected from both cities. The analyses based on the HYSPLIT trajectory model during the high $O_3$ and $PM_{10}$ showed these episodes (six cases) were mostly coincident with Asian dust storm originated from northern China and Mongolia. However, these high air pollution episodes in the west coastal cities may not only be caused by the Asian dust but also affected by other air pollutants transported from China accompanying the Asian dust.

Keywords

References

  1. Chang, M.H., E.-H. Ha, Y.J. Suh, B.E. Lee, H.J. Kwon, S.S. Hwang, Z.M. Li, J.H. Seo, and B.M. Kim, (2009) The perceived symptom and preventive behavior related to Asian dust event: in South Korean and Chinese, Korean J. of Atmos. Environ., 25(1), 26-37. (in Korean with English abstract) https://doi.org/10.5572/KOSAE.2009.25.1.026
  2. David, M.T., J.F. Rober, and L.W. Douglas (2001) April 1991 asian dust event, A southern California perspective, J. Geophys. Res., 106(D16), 18371-18379 https://doi.org/10.1029/2000JD900758
  3. Finlayson-Pitts, B.J. and J.N. Pitts (1986) Atmospheric Chemistry: Fundamentals and experimental techniques pp. 533-534, A Wiley-Interscience Publication, John Wiley & Sons, New York
  4. Hwang, I., Y.H. Cho, W.G. Choi, H.M. Lee, and T.O. Kim (2008), Quantitative estimation of PM-10 source contribution in Gumi city by the positive matrix factorization model, Korean J. of Atmos. Environ., 24(1), 100-107. (in Korean with English abstract) https://doi.org/10.5572/KOSAE.2008.24.1.100
  5. Jaffe, D., T. Anderson, D. Covert, R. Kotchenruther, B. Trost, J. Danielson, W. Simpson, T. Bertsen, S. Karlsdottir, D. Blake, J. Harris, G. Carmichael, and I. Uno (1999) Transport of Asian air pollution to north America, J. Geophys. Res. Lett., 26(6), 711-714 https://doi.org/10.1029/1999GL900100
  6. Kim, J.Y., Y.S. Ghim, C.H. Song, S.-C. Yoon, and J.S. Han (2007) Seasonal characteristics of air masses arriving at Gosan, Korea, using fine particle measurements between November 2001 and August 2003. J. Geophys. Res., 112, D07202, doi:10.1029/2005-JD006946
  7. Kim, Y.P. (2006) Air pollution in Seoul caused by aerosols, Korean J. of Atmos. Environ., 22(5), 535-553. (in Korean with English abstract)
  8. Lee, S., Y.S. Ghim, S.-W. Kim, and S.-C. Yoon (2008) Seasonal variation of chemical composition and optical properties of aerosols at Seoul and Gosan, Korean J. of Atmos. Environ., 24(4), 470-482. (in Korean with English abstract) https://doi.org/10.5572/KOSAE.2008.24.4.470
  9. Oh, M.-S., T.-J. Lee, and D.-S. Kim (2009) Characteristics of ionic components in size-resolved particulate matters in Suwon area, Korean J. of Atmos. Environ., 25(1), 46-56. (in Korean with English abstract) https://doi.org/10.5572/KOSAE.2009.25.1.046
  10. Park, O.-Y. and O. Kwon (2006) Statistical analysis of air pollutants concentration and meteorological parameters in Masan and Jeonju area, Proceeding of the 41st Meeting of KOSAE, pp. 412-413, Korean Society of Atmospheric Environment
  11. Son, H.Y. and C.-H. Kim (2009) Interpretating the spectral characteristics of measured particle concentrations in Busan, Korean J. of Atmos. Environ., 25(2), 134-140. (in Korean with English abstract)

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