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http://dx.doi.org/10.5572/KOSAE.2018.34.1.087

Analysis of Regional and Inter-annual Changes of Air Pollutants Emissions in China  

Woo, Jung-Hun (Department of Advanced Technology Fusion, Konkuk University)
Bu, Chanjong (Department of Advanced Technology Fusion, Konkuk University)
Kim, Jinsu (Department of Advanced Technology Fusion, Konkuk University)
Ghim, Young Sung (Department of Environmental Science, Hankuk University of Foreign Studies)
Kim, Younha (Department of Advanced Technology Fusion, Konkuk University)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.34, no.1, 2018 , pp. 87-100 More about this Journal
Abstract
Fast economic growth and urbanization of China have been causing air pollution not only over its domestic but transboundary atmosphere. Recent high fine particle pollution episodes in China made the government move toward more stringent air pollution control policies - which are mostly fuel switching and emissions control. In this research, we tried to understand characteristics of Chinese emissions and their change by analyzing its emissions inventory by year, sector, and region. From the inter-comparison of existing bottom-up emission inventories, we found relatively good agreements (<20% difference) for $SO_2$ and $NO_x$, but 30% or more discrepancies for some pollutants. Inter-comparison with top-down $NO_x$ emissions estimates also showed 20~50% differences by year. The regional distribution and inter-annual changes of emissions revealed different stages of energy/fuel mix and policy penetration. Early increase of pollutants emissions in the eastern part of China might give strong influences to the Korean peninsular in early 2000s but, more stringent control in that region would help improving air pollution in Korea in near future.
Keywords
China air pollutants emissions; Bottom-up emissions inventory; Top-down emissions inventory; Regional emissions distribution;
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