Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Aerosol Density Determined Using Micro-orifice Uniform Deposit Impactor and Aerosol Dust Monitors Data at Seoul

다단입자채집기와 입자계수기 자료를 이용한 서울 에어러솔 밀도 계산

  • Kim, Jeong-Eun (Asian Dust Research Laboratory, National Institute of Meteorological Research) ;
  • Lee, Hae-Young (Asian Dust Research Laboratory, National Institute of Meteorological Research)
  • 김정은 (국립기상연구소 황사연구과) ;
  • 이해영 (국립기상연구소 황사연구과)
  • Received : 2010.02.08
  • Accepted : 2010.04.30
  • Published : 2010.06.30
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Abstract

In order to calculate the aerosol bulk densities of $PM_{1.0}$ and $PM_{10}$, aerosol mass and number concentrations were measured for the period of December 2008~April 2009. $PM_{1.0}$ and $PM_{10}$ mass concentrations were measured using a cascade impactor (Micro-Orifice Uniform Deposit Impactor, MOUDI) while their volume concentrations were calculated based on number concentrations from an environmental dust monitor (EDM). Normal aerosol size distribution fitting functions were retrieved for number size distribution since aerosols < $2.5{\mu}m$ were measured from the EDM. Strong correlation was found between $PM_{1.0}$ mass and volume concentrations obtained with a $R^2$ of 0.95. The calculated average bulk densities of $PM_{1.0}$ and $PM_{10}$ were $1.97{\pm}0.33g/cm^3$ and $2.15{\pm}0.18g/cm^3$, respectively.

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References

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