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대기 중 PM2.5의 오염기여도 추정 및 PAHs 농도비를 이용한 연소 오염원 확인

Sources Apportionment Estimation of Ambient PM2.5 and Identification of Combustion Sources by Using Concentration Ratios of PAHs

  • 김도균 (경희대학교 환경학 및 환경공학과, 대기오염연구실 및 환경연구센터) ;
  • 이태정 (경희대학교 환경학 및 환경공학과, 대기오염연구실 및 환경연구센터) ;
  • 김성천 (국립군산대학교 공과대학 토목환경공학부 대기오염연구실) ;
  • 김동술 (경희대학교 환경학 및 환경공학과, 대기오염연구실 및 환경연구센터)
  • Kim, Do-Kyun (Department of Environmental Science and Engineering, Kyung Hee University-Global Campus) ;
  • Lee, Tae-Jung (Department of Environmental Science and Engineering, Kyung Hee University-Global Campus) ;
  • Kim, Seong-Cheon (School of Civil and Environmental Engineering, Kun San National University) ;
  • Kim, Dong-Sool (Department of Environmental Science and Engineering, Kyung Hee University-Global Campus)
  • 투고 : 2012.06.07
  • 심사 : 2012.09.10
  • 발행 : 2012.10.31

초록

The purpose of this study was to understand $PM_{2.5}$ chemical characteristics on the Suwon/Yongin area and further to quantitatively estimate $PM_{2.5}$ source contributions. The $PM_{2.5}$ sampling was carried out by a high-volume air sampler at the Kyung Hee University-Global Campus from November, 2010 to October, 2011. The 40 chemical species were then analyzed by using ICP-AES(Ag, Ba, Cr, Cu, Fe, Mn, Ni, Pb, Si, Ti, V and Zn), IC ($Na^+$, $K^+$, $NH_4{^+}$, $Mg^{2+}$, $Ca^{2+}$, $NO_3{^-}$, ${SO_4}^{2-}$ and $Cl^-$), DRI/OGC (OC1, OC2, OC3, OC4, OP, EC1, EC2 and EC3) and GC-FID (acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo[a]anthracene, benzo[b]fluoranthene, benzo[a] pyrene, indeno[1,2,3-cd] pyrene, benzo[g,h,i]perylene and dibenzo[a,h,]anthracene). When applying PMF model after performing proper data treatment, a total of 10 sources was identified and their contributions were quantitatively estimated. The average contribution to $PM_{2.5}$ emitted from each source was determined as follows; 26.3% from secondary aerosol source, 15.5% from soil and road dust emission, 15.3% from vehicle emission, 15.3% from illegal biomass burning, 12.2% from incineration, 7.2% from oil combustion source, 4.9% from industrial related source, and finally 3.2% from coal combustion source. In this study we used the ratios of PAHs concentration as markers to double check whether the sources were reasonably classified or not. Finally we provided basic information on the major $PM_{2.5}$ sources in order to improve the air quality in the study area.

키워드

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