Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Evaluation of Acid Rain through the Scavenging Theory and Application of Trajectory Model

세정이론을 통한 산성비의 평가와 발원지 추적

  • Kim, Jeong-Soo (Atmospheric Research Department, National Institute of Environmental Research) ;
  • Kang, In-Goo (Atmospheric Research Department, National Institute of Environmental Research) ;
  • Chang, Sung-Kee (Atmospheric Research Department, National Institute of Environmental Research)
  • 김정수 (국립환경연구원 대기연구부) ;
  • 강인구 (국립환경연구원 대기연구부) ;
  • 장성기 (국립환경연구원 대기연구부)
  • Received : 1992.04.17
  • Published : 1992.06.01
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Abstract

This study was carried out to investigate the features of air pollutants in rainwater and trace their transported trajectories from other countries. Chemical analysis data of rainwater and suspended particulates collected at Seoul, Kanghwa, and Taean for three years were used to evaluate the effects of long-range transport of air pollutants. Scavenging theory on washout and rainout effect during a rainy period was applied to estimate whether pollutants in the precipitation were long-range transported or not. On the other hand, precipitation weighted surface wind were evaluated to analyze the effect from local sources on atmospheric concentrations. As a result, contribution of air pollutants caused by anthropogenic sources in the precipitation which was identified to be long range transported was confirmed significantly high and trajectory of these pollutants was to be equivalent to 850mb isobar. Although concentration of acidifying components increased in the precipitation, neutralization by alkaline soil components such as $Ca^{2+}$ and $Mg^{2+}$ was conspicuous especially during Yellow-sand period.

Keywords

References

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