Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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The Effect of Dust Emissions on PM10 Concentration in East Asia

황사 배출량이 동아시아 지역 PM10 농도에 미치는 영향

  • Choi, Dae-Ryun (Department of Environmental and Energy Engineering, Anyang University) ;
  • Koo, Youn-Seo (Department of Environmental and Energy Engineering, Anyang University) ;
  • Jo, Jin-Sik (Department of Environmental and Energy Engineering, Anyang University) ;
  • Jang, Young-Kee (Department of Environmental and Energy Engineering, University of Suwon) ;
  • Lee, Jae-Bum (Air Quality Forecasting Center, National Institute of Environmental Research) ;
  • Park, Hyun-Ju (Air Quality Forecasting Center, National Institute of Environmental Research)
  • 최대련 (안양대학교 환경에너지공학과) ;
  • 구윤서 (안양대학교 환경에너지공학과) ;
  • 조진식 (안양대학교 환경에너지공학과) ;
  • 장영기 (수원대학교 환경에너지공학과) ;
  • 이재범 (국립환경과학원 대기질통합예보센터) ;
  • 박현주 (국립환경과학원 대기질통합예보센터)
  • Received : 2015.11.17
  • Accepted : 2015.12.29
  • Published : 2016.02.29
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Abstract

The anthropogenic aerosols originated from the pollutant emissions in the eastern part of China and dust emitted in northwestern China in Yellow sand regions are subsequently transported via eastward wind to the Korean peninsula and then these aerosols induce high $PM_{10}$ concentrations in Korean peninsula. In order to estimate air quality considering anthropogenic and dust emissions, Comprehensive Air-quality Model with extension (CAMx) was applied to simulate $PM_{10}$ concentration. The predicted $PM_{10}$ concentrations without/with dust emissions were compared with observations at ambient air quality monitoring sites in China and Korea for 2008. The predicted $PM_{10}$ concentrations with dust emissions could depict the variation of measured $PM_{10}$ especially during Yellow sand events in Korea. The comparisons also showed that predicted $PM_{10}$ concentrations without dust emissions were under-predicted while predictions of $PM_{10}$ concentrations with dust emission were in good agreement with observations. This implied that dust emissions from desert and barren soil in southern Mongolia and northern China minimized the discrepancies in the $PM_{10}$ predictions in East Asia. The effect of dust emission on annual $PM_{10}$ concentrations in Korea Peninsula for year 2008 was $5{\sim}10{\mu}g/m^3$, which were about 20% of observed annual $PM_{10}$ concentrations.

Keywords

References

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