수용모델(CMB)을 이용한 수도권 VOCs의 배출원별 기여율 추정

Receptor Model(CMB) and Source Apportionments of VOCs in Seoul Metropolitan Area

  • 한진석 (국립환경과학원 대기환경과) ;
  • 홍유덕 (국립환경과학원 대기환경과) ;
  • 신선아 (국립환경과학원 대기환경과) ;
  • 이상욱 (국립환경과학원 대기환경과) ;
  • 이석조 (국립환경과학원 대기환경과)
  • Han, Jin-Seok (Air quality division, National Institute of Environmental Research) ;
  • Hong, Y.D. (Air quality division, National Institute of Environmental Research) ;
  • Shin, S.A. (Air quality division, National Institute of Environmental Research) ;
  • Lee, S.U. (Air quality division, National Institute of Environmental Research) ;
  • Lee, S.J. (Air quality division, National Institute of Environmental Research)
  • 투고 : 2005.04.26
  • 심사 : 2005.07.20
  • 발행 : 2005.08.31

초록

Source contribution for VOCs collected in Seoul metropolitan area was conducted using PAMs (Photochemical assessment monitoring system) data and CMB(Chemical Mass Balance) model8.0, in order to estimate spatial and temporal variations of VOCs source contribution in that area, and also to compare with corresponding emission inventory. VOCs data used in model calculation were collected at 6 different sites of PAMs(Seokmori, Guwoldong, Simgokdong, Bulgwangdong, Jeongdong and Yangpyeong) and 22 out of 56 VOCs species were analyzed from June 2002 to march 2003 and used for CMB model estimation. The result showed that vehicle exhaust, coating and energy combustion were important sources of VOCs in Seoul metropolitan area, averaging 32.6%, 25.5% and 25.1%, respectively. In this study as well as other references, it was revealed that vehicle exhaust is the main contributor of urban area VOCs, but there is remarkable contrast between emission inventory and model estimation. Vehicle exhaust portion is seriously underestimated while coating is usually overestimated in emission estimates, compared to CMB results. Therefore, it is considered to assert and confirm the uncertainty of emission estimates and clarify the distinction between two other source apportionment methods.

키워드

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