Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Ionic Compositions of Fine Particulate Matter during Summer and Winter in the Downtown Area of Jejusi City in Jeju Island

제주시 도심지역에서 여름철과 겨울철의 미세먼지 중 수용성 이온 조성

  • Lee, Ki-Ho (Department of Environmental Engineering, Jeju National University) ;
  • Kim, Su-Mi (Research Institute of Health & Environment, Jeju Special Self-Governing Province) ;
  • Hu, Chul-Goo (Department of Environmental Engineering, Jeju National University)
  • 이기호 (제주대학교 환경공학과) ;
  • 김수미 (제주특별자치도 보건환경연구원) ;
  • 허철구 (제주대학교 환경공학과)
  • Received : 2017.02.21
  • Accepted : 2017.04.11
  • Published : 2017.05.31
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Abstract

This study was carried out to elucidate the chemical compositions of water-soluble inorganic ions in $PM_{10}$ and $PM_{2.5}$ aerosols collected during summer and winter in downtown Jejusi city. The ratios of $NO_3^-$ to the total mass of ionic species in $PM_{10}$ and $PM_{2.5}$ aerosols largely increase in winter compared to summer, while $SO_4^{2-}$ ratios in both aerosols appear to follow the opposite trend. Moreover, concentrations of $Na^+$, $Mg^{2+}$, $Ca^{2+}$ and $Cl^-$ in $PM_{10}$ and $PM_{2.5-10}$ aerosols are higher in winter than in summer. The nitrate concentrations in $PM_{10}$ and $PM_{2.5}$ aerosols increase with an identical increase in excess ammonium during winter, however, nitrate formation during summer is not important owing to ammonium-poor conditions.

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References

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