Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Ion Concentrations of Particulate Matter in Yongin in Spring and Fall

봄철과 가을철 용인지역 입자상 물질의 이온 농도

  • Won, Soo-Ran (Department of Environmental Science, Hankuk University of Foreign Studies) ;
  • Choi, Yong-Joo (Department of Environmental Science, Hankuk University of Foreign Studies) ;
  • Kim, A-Rong (Department of Environmental Science, Hankuk University of Foreign Studies) ;
  • Choi, Soon-Ho (Department of Environmental Science, Hankuk University of Foreign Studies) ;
  • Ghim, Young-Sung (Department of Environmental Science, Hankuk University of Foreign Studies)
  • 원수란 (한국외국어대학교 환경학과) ;
  • 최용주 (한국외국어대학교 환경학과) ;
  • 김아롱 (한국외국어대학교 환경학과) ;
  • 최순호 (한국외국어대학교 환경학과) ;
  • 김영성 (한국외국어대학교 환경학과)
  • Received : 2009.12.30
  • Accepted : 2010.05.26
  • Published : 2010.06.30
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Abstract

Mass and ion concentrations of $PM_{10}$ and $PM_{2.5}$ were measured in Yongin, downwind of the Seoul metropolitan area. Twenty-four hour average samples were collected daily for a month or so in spring and fall of both 2007 and 2008. Asian dust occurred twice in each period except in the fall of 2007. During the Asian dust period, nitrate in fine particles decreased since large amount of cations in coarse particles of Asian dust absorbed it. In spring 2008, sulfate as well as ammonium also increased in coarse particles. In spite of occasional Asian dust events, the influence of secondary formation was dominant over the period. Excessive ammonium over sulfate was enough to neutralize nitrate as well. High correlation coefficients between $K^+$ and sulfate, nitrate, and ammonium indicate a close relationship between secondary formation and biomass burning. Biomass burning and open burning are considered to be important sources of chloride.

Keywords

References

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