중국 배출량 목록에 대한 국내 오존 민감도 분석 : MICS-Asia 2010와 INTEX-B 2006 비교사례 (Domestic Ozone Sensitivity to Chinese Emissions Inventories: A Comparison between MICS-Asia 2010 and INTEX-B 2006)

서지정보

· 발행기관 : 한국대기환경학회
· 수록지 정보 : 한국대기환경학회지 / 33권 / 5호 / 480 ~ 496페이지
· 저자명 : 김순태, 배창한, 김은혜, 유승희, 배민아, 이재범, 서인석, 임용재, 김병욱, 김현철, 우정헌

초록

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 NOx and VOC emissions on 1-hr ozone concentrations over South Korea during May to July in 2014. Chinese NOx 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 NOx 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 NOx and VOC emissions were as high as 55 ppb and 35 ppb for the episode respectively. Correlation coefficients between ZOC of Chinese NOx 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 NOx and VOC emissions than Case 1, when simulated ozone in the SMA is over 80 ppb. It implies that upwind NOx emissions would be more important than upwind VOC emissions for the long-range transport of ozone in Northeast Asia.

영어초록

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 NOx and VOC emissions on 1-hr ozone concentrations over South Korea during May to July in 2014. Chinese NOx 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 NOx 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 NOx and VOC emissions were as high as 55 ppb and 35 ppb for the episode respectively. Correlation coefficients between ZOC of Chinese NOx 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 NOx and VOC emissions than Case 1, when simulated ozone in the SMA is over 80 ppb. It implies that upwind NOx emissions would be more important than upwind VOC emissions for the long-range transport of ozone in Northeast Asia.

참고자료

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