Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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A Study on the Particles Density Estimation in Seoul Metropolitan

서울시 미세먼지의 밀도 추정에 관한 연구

  • Kim, Shin-Do (Dept. of Environmental Engineering, University of Seoul) ;
  • Kim, Chang-Hwan (Dept. of Environmental Engineering, University of Seoul) ;
  • Hwang, Ui-Hyun (Dept. of Civil Engineering, Gyeongdo Provincial College)
  • Published : 2008.04.30
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Abstract

The variation of the particle size distribution and density as well as the chemical composition of aerosols is important to evaluate the particles. This study measured and analyzed airborne particles using a scanning mobility particle sizer (SMPS) system and an aerodynamic particle sizer (APS) at the University of Seoul during every season. The highest particle number concentration of airborne particles less than $0.9\;{\mu}m$, occurred in winter, while the highest particle number concentration of airborne particles more than $0.9\;{\mu}m$, occurred in spring. Mass concentration appeared highest at spring. Also, when we compared $\beta$-ray's mass concentration with calculated mass concentration by using the SMPS-APS system during each season, density of the winter is $1.92\;g/cm^3$, spring density is $1.64\;g/cm^3$, fall density is $1.57\;g/cm^3$. We found out that PM10 density was differ every season. However, while the calculated density is whole density for PM10 the density of each diameter was different. In this study the density estimation equation of the QCM cascade impactor measured mass concentration of each diameter.

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References

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