Particle and Aerosol Research 
2026 년
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Particle and Aerosol Research Vol. 15, No. 3, September 2019, Pages 115-126 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
Effective density measurement of ambient sub-micron aerosol using SMPS and 1 stage low-pressure impactor
Jaeho Oh1), Jangseop Han1), Geunyoung Park1), and Jungho Hwang1)*
1)Department of Mechanical Engineering, Yonsei University
*Corresponding author. Tel.: +82-2-2123-2821, E-mail: hwangjh@yonsei.ac.kr
Received 19 June 2019, Revised 15 July 2019, Accepted 26 September 2019, Available online 30 September 2019
http://dx.doi.org/10.11629/jpaar.2019.15.3.115
Abstracts
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 0.42 g/cm3 to 2.36 g/cm3, while the effective density obtained with BAM+SMPS ranged from 1.01 g/cm3 to 1.72 g/cm3. 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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