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Studies on the Behavior of SO2 and NOx over Yellow Sea Area during Long Term Aircraft Measurements(1997~2007)

장기간(1997~2007) 창공관측을 이용한 서해상 SO2 및 NOx의 거동 연구

  • Song, Hyung-Do (Climate and Air Quality Research Department Air Quality Research Division National Institute of Environment Research Environmental Research Complex) ;
  • Choi, Jin-Soo (Climate and Air Quality Research Department Air Quality Research Division National Institute of Environment Research Environmental Research Complex) ;
  • Jang, Im-Suk (Climate and Air Quality Research Department Air Quality Research Division National Institute of Environment Research Environmental Research Complex) ;
  • Kim, Jeong-Soo (Climate and Air Quality Research Department Air Quality Research Division National Institute of Environment Research Environmental Research Complex) ;
  • Lee, Suk-Jo (Climate and Air Quality Research Department Air Quality Research Division National Institute of Environment Research Environmental Research Complex)
  • 송형도 (국립환경과학원 기후대기연구 대기환경연구과) ;
  • 최진수 (국립환경과학원 기후대기연구 대기환경연구과) ;
  • 장임석 (국립환경과학원 기후대기연구 대기환경연구과) ;
  • 김정수 (국립환경과학원 기후대기연구 대기환경연구과) ;
  • 이석조 (국립환경과학원 기후대기연구 대기환경연구과)
  • Published : 2009.05.31

Abstract

Aircraft Measurements of gaseous pollutants($SO_2$, NOx and $O_3$) in the Yellow Sea area, were carried out on 1997-2007. Main measurement site in 124$^{\circ}$-127$^{\circ}$E, 35$^{\circ}$-37$^{\circ}$N (in the Yellow Sea), have been done along the paths classified vertically and zonally. To understand how the air stream affects Long-range transboundary pollutants in Northease Asia (LTP), the tracks of pollutants in northeast Asia have been analyzed by dividing into 6 different regions(regions I-V and L). Compared with Korea's local sources and western north Pacific influenced by the Yellow Sea, when the air stream from region II is dominant, the $SO_2$ concentrations are 3-6times higher. In region II and III, $SO_2$ concentrations are represented highest at 25.0 and 14.7 ppb, respectively. However, in other regions, $SO_2$ concentration was recorderd the highest at 1.1-3.8 ppb, which is 7-15% higher then the highest one over the region II and III. During 1997-2007, the mean amount of incoming pollutants is 0.162 $ton/km{\cdot}hr$ exceeding about 5-times mean amount of outgoing pollutants over the West Sea. During the observed period, the amount of incoming and outgoing $SO_2$ over the Yellow Sea is the highest in winter, at 0.224 $ton/(km{\cdot}hr)$ and 0.120 $ton/(km{\cdot}hr)$, respectively.

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Cited by

  1. Characteristics of Long-Range Transport of Air Pollutants due to Different Transport Patterns over Northeast Asia vol.28, pp.2, 2012, https://doi.org/10.5572/KOSAE.2012.28.2.142