Domestic Ozone Sensitivity to Chinese Emissions Inventories: A Comparison between MICS-Asia 2010 and INTEX-B 2006

중국 배출량 목록에 대한 국내 오존 민감도 분석: MICS-Asia 2010와 INTEX-B 2006 비교사례

  • Kim, Soontae (Department of Environmental & Safety Engineering, Ajou University) ;
  • Bae, Changhan (Department of Environmental & Safety Engineering, Ajou University) ;
  • Kim, Eunhye (Department of Environmental & Safety Engineering, Ajou University) ;
  • You, Seunghee (Department of Environmental & Safety Engineering, Ajou University) ;
  • Bae, Minah (Department of Environmental & Safety Engineering, Ajou University) ;
  • Lee, Jae-bum (NIER/Air Quality Forecasting Center) ;
  • Seo, Inseok (NIER/Air Quality Forecasting Center) ;
  • Lim, Yongjae (NIER/Air Quality Forecasting Center) ;
  • Kim, Byeong-Uk (Georgia Environmental Protection Division) ;
  • Kim, Hyun Cheol (Air Resources Laboratory, National Oceanic and Atmospheric Administration) ;
  • Woo, Jung-Hun (Department of Advanced Technology Fusion, Konkuk University)
  • 김순태 (아주대학교 환경안전공학과) ;
  • 배창한 (아주대학교 환경안전공학과) ;
  • 김은혜 (아주대학교 환경안전공학과) ;
  • 유승희 (아주대학교 환경안전공학과) ;
  • 배민아 (아주대학교 환경안전공학과) ;
  • 이재범 (국립환경과학원 대기질통합예보센터) ;
  • 서인석 (국립환경과학원 대기질통합예보센터) ;
  • 임용재 (국립환경과학원 대기질통합예보센터) ;
  • 김병욱 (미국조지아주환경청) ;
  • 김현철 (미국국립해양대기청) ;
  • 우정헌 (건국대학교 신기술융합학과)
  • Received : 2017.09.10
  • Accepted : 2017.10.10
  • Published : 2017.10.31


CMAQ (Community Multiscale Air Quality)-HDDM (High-order Direct Decoupled Method) simulations with MICS-Asia 2010 and INTEX-B 2006 emissions inventories were performed to investigate the impact of Chinese $NO_x$ and VOC emissions on 1-hr ozone concentrations over South Korea during May to July in 2014. Chinese $NO_x$ and VOC emissions in MICS-Asia 2010 were 60% higher and 100% lower than those in INTEX-B 2006 during the simulation period. It makes the ratio of Chinese VOC to $NO_x$ emissions in INTEX-B 2006 (Case 1) is 3.2 times higher than that in MICS-Asia 2010 (Case 2). When the observed period mean 1-hr ozone concentration averaged across 106 air monitoring sites in the SMA (Seoul Metropolitan Area) was 37.6 ppb, the modeled values were similar to each other; 37.3 ppb for Case 1, and 40.4 ppb for Case 2. Both cases show that daily maximum 1-hr ZOC (Zero-Out Contribution) of Chinese $NO_x$ and VOC emissions were as high as 55 ppb and 35 ppb for the episode respectively. Correlation coefficients between ZOC of Chinese $NO_x$ and VOC emissions and the SMA daily maximum 1-hr ozone were 0.49~0.69. It indicates that Chinese emissions occasionally affect the SMA daily ozone peaks. On the other hand, Case 2 predicted 7 ppb and 1 ppb higher ZOC of Chinese $NO_x$ and VOC emissions than Case 1, when simulated ozone in the SMA is over 80 ppb. It implies that upwind $NO_x$ emissions would be more important than upwind VOC emissions for the long-range transport of ozone in Northeast Asia.


Supported by : 국립환경과학원


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