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Estimation of Source-Based Aerosol Optical Properties for Polydisperse Aerosols from Receptor Models

Cited 2 time in wos
Cited 3 time in scopus
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Title
Estimation of Source-Based Aerosol Optical Properties for Polydisperse Aerosols from Receptor Models
Other Titles
에어로졸 수감모델을 이용한 입자의 광학특성 예측
Authors
Jung, Chang Hoon
Lee, Ji Yi
Um, Junshik
Lee, Seoung Soo
Yoon, Young Jun
Kim, Yong Pyo
Subject
Chemistry; Engineering; Materials Science; Physics
Keywords
size- and source-resolved aerosol optical properties; SMP receptor model; polydispersity; mass extinction efficiency
Issue Date
2019-04
Citation
Jung, Chang Hoon, et al. 2019. "Estimation of Source-Based Aerosol Optical Properties for Polydisperse Aerosols from Receptor Models". APPLIED SCIENCES-BASEL, 9(7): 1443-1457.
Abstract
We estimate source-based aerosol optical properties for polydisperse aerosols based on a source apportionment-based chemical species-resolved mass contribution method. We investigate the sensitivity of aerosol optical properties based on the PM2.5 monitoring results collected at the Korea Institute of Science and Technology, Seoul, Korea, from October 2012 to September 2013. The PM2.5 mass concentration data is composed of ions, metals, elemental carbon, and water-soluble organic carbon, which includes humic-like carbon substances and organic carbon that is water-insoluble. We calculate the aerosol extinction coefficient based on the PM2.5 composition data and the results of a multivariate receptor model (SMP, Solver for Mixture Problem). Using calculated optical properties based on the chemical composition of the resolved mass concentration and nine sources from the SMP receptor model, we estimate size-resolved mass extinction efficiencies for each aerosol source using a multilinear regression model. Consequently, this study quantitatively calculates the size-resolved source of the apportionment-based aerosol optical properties and their respective contributions. The results show that source-resolved mass concentrations and extinction coefficients have varying contributions. This discrepancy between the source-based mass concentration and extinction coefficient is mainly due to differences between each source-based aerosol size distribution and the aerosol optical properties from different sources.
URI
https://repository.kopri.re.kr/handle/201206/10827
DOI
http://dx.doi.org/10.3390/app9071443
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