Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
권호 표지

Photochemical Analysis of Ozone Episodes in the Metropolitan Area of Seoul During the Summer 2004

2004년 여름 서울에서 발생한 고농도 오존 사례의 광화학적 분석

  • Shon, Zang-Ho (Department of Environmental Engineering, Dong-Eui University)
  • Published : 2006.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

This study examines ozone episodes occurred during the intensive sampling periods (Jun. 1-30, 2004) in the air of Seoul metropolitan area. During that period, there were 8 events (or days) in which 1 hr averaged ozone concentrations were greater than 100 ppbv. The photochemical analysis of ozone chemistry (i.e., budget and formation and destruction strengths of ozone) was carried out using a photochemical box model. Peaks in diurnal ozone variations during ozone episode periods occurred were concurrent with the sudden change of the slope of $NO_{2}/NO$ ratio, suggesting significant correlation with photochemical reactivity. In addition, the ozone peaks were concurrent with high concentrations of ozone precursors, peroxy radicals of $HO_{2},\;CH_{3}O_{2},\;and\;RO_{2}$. High ozone levels during the ozone episodes are likely to be affected by ozone destruction rate.

Keywords

References

  1. 오인보, 김유근, 황미경 (2005) 수도권지역 오존오염 패턴과 기상학적 특성, 한국대기환경학회지, 21(3), 357-365
  2. 환경부 (2002) 대기환경연보 (2001)2002: Annual Report of Ambient Air Quality in Korea, 2001
  3. 환경부(2004) 대기환경연보(2003)2004: Annual Report of Ambient Air Quality in Korea, 2003
  4. Aumont, B., F. Chervier, and S. Laval (2003) Contribution of HONO sources to the $NO_x/HO_x/O_3$ chemistry in the polluted boundary layer, Atmos. Environ., 37, 487-498 https://doi.org/10.1016/S1352-2310(02)00920-2
  5. Liu, S.C., D. Kley, M. McFarland, J.D. Mahlman, and H. Levy II (1980) On the origin of tropospheric ozone, J. Geophys. Res., 85, 7546-7552 https://doi.org/10.1029/JC085iC12p07546
  6. Lurmann, F.W. and A.C. Lloyd (1986) A chemical mechanism for use in long-range transport/acid deposition computer modeling, J. Geophys. Res., 91, 10905-10936 https://doi.org/10.1029/JD091iD10p10905
  7. Sander, S.P., D.M. Golden, M.J. Kurylo, G.K. Moortgat, A.R. Ravishankara, C.E. Kolb, M.J. Molina, and B. Finlayson-Pitts (2002) Chemical kinetics and photochemical data for use in atmospheric studies, Jet Prop. Lab. Pub. 02-25, Jet Prop. Lab., Pasadena, California
  8. Shon, Z.-H. (1999) Photochemical assessment of oceanic emissions of DMS and its oxidation to $SO_2$ based on airborne field observations, Ph.D. dissertation, Georgia Institute of Technology, Atlanta, GA, USA
  9. Shon, Z.-H., K.-H. Kim, K. Bower, G. Lee, and J. Kim (2004) Assessment of the photochemistry of OH and $NO_3$ on Jeju Island during the Asian Dust-Storm Period in the Spring of 2001, Chemo., 55, 1127-1142 https://doi.org/10.1016/j.chemosphere.2003.10.003