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

중국 대기오염물질 배출의 시공간적 변화 분석

  • 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)
  • 우정헌 (건국대학교 신기술융합학과) ;
  • 부찬종 (건국대학교 신기술융합학과) ;
  • 김진수 (건국대학교 신기술융합학과) ;
  • 김영성 (한국외국어대학교 환경학과) ;
  • 김윤하 (건국대학교 신기술융합학과)
  • Received : 2018.01.15
  • Accepted : 2018.02.20
  • Published : 2018.02.28

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

References

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  1. Review of Shandong Peninsular Emissions Change and South Korean Air Quality vol.34, pp.2, 2018, https://doi.org/10.5572/KOSAE.2018.34.2.356