Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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The Trend of the Concentrations of the Criteria Pollutants over Seoul

서울의 대기환경기준물질 농도 추이

  • Kim, Yong Pyo (Department of Environmental Science and Engineering, Ewha Womans University) ;
  • Yeo, Min Ju (Department of Environmental Science and Engineering, Ewha Womans University)
  • 김용표 (이화여자대학교 환경공학과) ;
  • 여민주 (이화여자대학교 환경공학과)
  • Received : 2013.07.07
  • Accepted : 2013.08.06
  • Published : 2013.08.31
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Abstract

The trends of the criteria air pollutants' concentrations over Seoul are reviewed, relative contributions of major sources are discussd, and directions for future air quality management are suggested. It was shown that the yearly average concentrations of the criteria air pollutants except nitrogen dioxide and ozone have decreased significantly over the last three decades. Though the concentration of nitrogen dioxide has not decreased, the concentration of $NO_x$ has decreased significantly. The major reason for the reduction of the criteria air pollutants has been strict government regulations such as establishment of strict emission standards and switch to cleaner fuels. However, it is not clear the major reason (s) for the reduction of the $PM_{10}$ concentration. It is suggested that to further reduce the concentrations of secondary air pollutants such as ozone and $PM_{2.5}$, understanding the major chemical pathways for them is essential. In addition, influence from outside Seoul should be quantified and effectively controlled.

Keywords

References

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