Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Source Apportionment and the Origin of Asian Dust Observed in Korea by Receptor Modelling (CMB)

수용모델(CMB)을 이용한 한반도에서 관측된 황사의 발원지 추정과 기여도에 대한 연구

  • Shin S.A. (Department of Environmental Engineering, University of Seoul) ;
  • Han J.S. (Air Quality Division, Notional Institute of Environmental Research) ;
  • Kim S.D. (Department of Environmental Engineering, University of Seoul)
  • 신선아 (서울시립대학교 환경공학부) ;
  • 한진석 (국립환경과학원 대기환경과) ;
  • 김신도 (서울시립대학교 환경공학부)
  • Published : 2006.04.01
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Abstract

Ambient TSP at four sites in Korea and soil samples from the source regions of Asian Dust in northern China were collected and analyzed for 15 metal components and 6 water-soluble ions to conduct a chemical mass balance (CMB). CMB receptor model was used to estimate the source contribution of TSP during the Asian Dust period, and the model results showed that China soil was the largest source contributor, accounting for 81% of TSP ($458.2{\mu}g/m^3$). Vehicle emission and geological sources contributed to about 8.8% and 4.4% of aerosol mass, followed by sea salt (1.5%) and secondary aerosol (2.9%). Fuel combustion and industrial process sources were found to be relatively minor contributors to TSP (${\leq}1%$). In addition to source contribution estimates, this study tried to identify the origin of Asian Dust observed in Korea. Among all 13 China soil profiles presented in this study, the most adoptable profile which can project the case well was selected and considered as the origin of the applied case.

Keywords

References

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