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Characterization and source apportionment by factor analysis of water soluble ions in atmospheric particles in Cheonan, Korea

천안시 대기 입자 중 수용성 이온성분의 계절적 특성 및 요인분석을 통한 오염기여도 평가

  • Oh, Se-Won (Department of Environmental Engineering, Sangmyung University)
  • 오세원 (상명대학교 환경공학과)
  • Received : 2011.01.07
  • Accepted : 2011.02.10
  • Published : 2011.02.28

Abstract

Seasonal characteristics of water soluble ions in atmospheric particles in Cheonan were studied between 2008 and 2009. $Na^+$, $NH_4^+$ and $NO_3^-$, $SO_4^{2-}$ were the principle cations and anions in both coarse and fine particles. Water soluble ions occupied 24.4%(spring), 33.2%(summer), 40.7%(fall), and 39.6%(winter) of the total mass of coarse particles. In fine particles, 43.0%(spring), 59.7%(summer), 55.4%(fall), and 53.2%(winter) of mass were occupied by water soluble ions. From the factor analysis, 2 and 4 factors were extracted for water soluble ions in coarse and fine particles, respectively. 70.33% of water ions in the coarse particles were estimated from the natural source, but 66.01% in the fine particles were from the anthropogenic source.

Keywords

Coarse particles;Fine particles;Water soluble ions;Factor analysis

Acknowledgement

Supported by : 상명대학교

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