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http://dx.doi.org/10.11629/jpaar.2019.15.3.115

Effective density measurement of ambient sub-micron aerosol using SMPS and 1 stage low-pressure impactor  

Oh, Jaeho (Department of Mechanical Engineering, Yonsei University)
Han, Jangseop (Department of Mechanical Engineering, Yonsei University)
Park, Geunyoung (Department of Mechanical Engineering, Yonsei University)
Hwang, Jungho (Department of Mechanical Engineering, Yonsei University)
Publication Information
Particle and aerosol research / v.15, no.3, 2019 , pp. 115-126 More about this Journal
Abstract
In this study, a serial methodology is presented for estimating the effective density of ambient sub-micron aerosol employing lab-made 1 stage low-pressure impactor of Hyun et al. (2015) and SMPS (Scanning Mobility Particle Sizer) together. The effective density from this methodology (Impactor+SMPS) was compared with another methodology (BAM+SMPS) for estimating the effective density employing BAM (Beta-Attenuation Monitor) and SMPS. As a result, the effective density obtained with impactor+SMPS ranged from $0.42g/cm^3$ to $2.36g/cm^3$, while the effective density obtained with BAM+SMPS ranged from $1.01g/cm^3$ to $1.72g/cm^3$. The difference between these results might be caused by the particle loss in the impactor.
Keywords
effective density; impactor; ambient aerosols; corona discharge;
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