한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제34권3호
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  • Pages.457-468
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  • 2018
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
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북한산국립공원 내 초미세먼지 농도 및 화학적 특성

Characterization of Aerosol Composition, Concentration, and Sources in Bukhansan National Park, Korea

  • 강석원 (한국외국어대학교 환경학과) ;
  • 강태원 (국립공원관리공단 환경관리부) ;
  • 박태현 (한국외국어대학교 환경학과) ;
  • 박규태 (한국외국어대학교 환경학과) ;
  • 이준홍 (연세대학교 대기과학과) ;
  • 홍제우 (연세대학교 대기과학과) ;
  • 홍진규 (연세대학교 대기과학과) ;
  • 이재홍 (하림엔지니어링(주)) ;
  • 이태형 (한국외국어대학교 환경학과)
  • Kang, Seokwon (Department of Environmental Science, Hankuk University of Foreign Studies) ;
  • Kang, Taewon (Protection Division, Korea National Park Service) ;
  • Park, Taehyun (Department of Environmental Science, Hankuk University of Foreign Studies) ;
  • Park, Gyutae (Department of Environmental Science, Hankuk University of Foreign Studies) ;
  • Lee, Junhong (Department of Atmospheric Sciences, Yonsei University) ;
  • Hong, Je-Woo (Department of Atmospheric Sciences, Yonsei University) ;
  • Hong, Jinkyu (Department of Atmospheric Sciences, Yonsei University) ;
  • Lee, Jaehong (Harim Engineering, Inc.) ;
  • Lee, Taehyoung (Department of Environmental Science, Hankuk University of Foreign Studies)
  • 투고 : 2018.06.13
  • 심사 : 2018.06.14
  • 발행 : 2018.06.30
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초록

To improve understanding of the physico-chemical characteristics of aerosols in the national park and comparing the air pollution between national park and the urban area nearby national park, the aerosol characterization study was conducted in Bukhansan National Park, Seoul, from July through September 2017. Semi-continuous measurements of $PM_{2.5}$ using PILS (Particle Into Liquid System) coupled with IC (Ion Chromatography) and TOC (Total Organic Carbon) analyzer allowed quantification of concentrations of major ionic species($Cl^-$, $SO_4{^{2-}}$, $NO_3{^-}$, $Na^+$, $NH_4{^+}$, $K^+$, $Mg{^{2+}}$ and $Ca{^{2+}}$) and water soluble organic carbon (WSOC) with 30-minute time resolution. The total mass concentration of $PM_{2.5}$ was measured by T640 (Teledyne) with 5-minute time resolution. The black carbon (BC) and ozone were measured with a minute time resolution. The timeline of aerosol chemical compositions reveals a strong influence from urban area (Seoul) at the site in Bukhansan National Park. Inorganic aerosol composition was observed to be dominated by ammoniated sulfate at most times with ranging from $0.1{\sim}32.6{\mu}g/m^3$ (6.5~76.1% of total mass of $PM_{2.5}$). The concentration of ammonium nitrate, a potential indicator of the presence of local source, ranged from below detection limits to $20{\mu}g/m^3$ and was observed to be highest during times of maximum local urban (Seoul) impact. The total mass of $PM_{2.5}$ in Bukhansan National Park was observed to be 10~23% lower than the total mass of $PM_{2.5}$ in urban area (Gireum-dong and Bulgwang-dong, Seoul). In general, ozone concentration in Bukhansan National Park was observed to be similar or higher than urban sites in Seoul, suggesting additional biogenic VOCs with $NO_x$ from vehicle emission were to be precursors for ozone formation in Bukhansan National Park.

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