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The Interannual Variation of Transboundary Contributions from Chinese Emissions of PM_(2.5)to South Korea

查看全文 作　　者：Xiao [1,2]HAN;Meigen [1,2,3]ZHANG 高影响力作者 机构地区：[1]State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China;[2]College of Earth and Planetary Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;[3]Center for Excellence in Urban Atmospheric Environment,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361021,China高影响力机构 出　　处：《Advances in Atmospheric Sciences》索引2021年第38卷第5期,共6页高影响力期刊 基　　金：the National Natural Science Foundation of China(Grant Nos.41830109 and 42077203);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDA19040204). 摘　　要：In recent years,several studies pointed out that anthropogenic emission sources in China which significantly contribute to the PM_(2.5)mass burden was an important cause of particulate pollution in South Korea.However,most studies generally focused upon a single pollution event.It is rare to see comprehensive research that captures those features prone to interannual variations concerning the transboundary pollutant contribution in South Korea using a unified method.In this paper,we establish the emission inventories covering East Asia in 2010,2015,and 2017,and then conduct the source apportionment by applying a coupled regional air quality model called the Integrated Source Apportionment Module(ISAM).Comparison of simulated and observed PM_(2.5)mass concentration at 165 CNEMC(China National Environmental Monitoring Center)sites suggests that the PM_(2.5)concentrations are well represented by the modeling system.The model is used to quantitatively investigate the contribution from emission sources in China to PM_(2.5)concentrations over South Korea and those features found to be prone to interannual variations are then discussed.The results show that the average annual contribution of PM_(2.5)has dropped significantly from 28.0%in 2010 to 15.7%in 2017,which strongly suggests that China has achieved remarkable results in the treatment of atmospheric particulates. 关 键 词：CMAQ PM_(2.5) transboundary contribution air quality
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