한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제25권1호
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  • Pages.46-56
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  • 2009
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
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수원지역 분진의 입경별 이온성분 분포특성에 관한 연구

Characteristics of Ionic Components in Size-resolved Particulate Matters in Suwon Area

  • 오미석 (경희대학교 환경.응용화학대학 대기오염연구실 및 환경연구센터) ;
  • 이태정 (경희대학교 환경.응용화학대학 대기오염연구실 및 환경연구센터) ;
  • 김동술 (경희대학교 환경.응용화학대학 대기오염연구실 및 환경연구센터)
  • Oh, Mi-Seok (College of Environment & Applied Chemistry and Center for Environmental Studies, Kyung Hee University-Global Campus) ;
  • Lee, Tae-Jung (College of Environment & Applied Chemistry and Center for Environmental Studies, Kyung Hee University-Global Campus) ;
  • Kim, Dong-Sool (College of Environment & Applied Chemistry and Center for Environmental Studies, Kyung Hee University-Global Campus)
  • 발행 : 2009.02.28
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초록

The main purpose of this study was to investigate air quality trends of ambient aerosol with obtaining size-fractionated information. The suspended particulate matters were continuously collected on membrane filters and glass fiber filters by an 8-stage cascade impactor for 2 years (Sep. 2005 $\sim$ Sep. 2007) in Kyung Hee University-Global Campus. 8 ionic species ($Na^+$, ${NH_4}^+$, $K^+$, $Mg^{2+}$, $Ca^{2+}$, $Cl^-$, ${NO_3}^-$, and ${SO_4}^{2-}$) were analyzed by an IC after performing proper pretreatments of each sample filter. The average concentration levels of each ion were $9.24{\mu}g/m^3$ of ${SO_4}^{2-}$, $7.35{\mu}g/m^3$ of ${NO_3}^-$, $2.81{\mu}g/m^3$ of ${NH_4}^+$, $2.11{\mu}g/m^3$ of $Ca^{2+}$, $1.65{\mu}g/m^3$ of $Cl^-$, $1.87{\mu}g/m^3$ of $Na^+$, $0.80{\mu}g/m^3$ of $Mg^{2+}$, and $0.54{\mu}g/m^3$ of $K^+$, respectively. The distribution pattern of $Na^+$, $Mg^{2+}$, $Ca^{2+}$, $Cl^-$, and ${NO_3}^-$ was bi-modal and two peaks appeared in the range of $0.4{\sim}0.7{\mu}m$ and $3.3{\sim}4.7{\mu}m$, respectively. On the other hand, ${SO_4}^{2-}$, ${NH_4}^+$, and $K^+$ showed patterns of uni-modal distribution, mostly abounded in the fine mode group.

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