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Open AccessArticle

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

1
Department of Health Management, Kyungin Women’s University, 101 Gesan-gil, Gyeyang-gu, Incheon 21041, Korea
2
Department of Environmental Science and Engineering, Ewha Womans University, 11-1 Daehyun-dong, Seodaemun-gu, Seoul 03760, Korea
3
Department of Atmospheric Sciences, Pusan National University, 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Korea
4
Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD 20740, USA
5
Korea Polar Research Institute, 26, Songdomirae-ro, Yeonsu-gu, Incheon 21990, Korea
6
Department of Chemical Engineering and Material Science, Ewha Womans University, 11-1 Daehyun-dong, Seodaemun-gu, Seoul 03760, Korea
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(7), 1443; https://doi.org/10.3390/app9071443
Received: 10 February 2019 / Revised: 1 April 2019 / Accepted: 1 April 2019 / Published: 6 April 2019
(This article belongs to the Special Issue Air Pollution)
We estimated source-based aerosol optical properties for polydisperse aerosols according to a chemical-species-resolved mass contribution method based on source apportionment. We investigated the sensitivity of aerosol optical properties based on PM2.5 (particulate matter that have a diameter of less than 2.5 micrometers) monitoring results. These aerosols were composed of ions, metals, elemental carbon, and water-soluble organic carbon which includes humic-like carbon substances and water-soluble organic carbon. We calculated aerosols’ extinction coefficients based on the PM2.5 composition data and the results of a multivariate receptor model (Solver for Mixture Problem model, SMP). Based on the mass concentration of chemical composition and nine sources calculated with the SMP receptor model, we estimated the size-resolved mass extinction efficiencies for each aerosol source using a multilinear regression model. Consequently, this study quantitatively determined the size resolved sources contributing to the apportionment-based aerosol optical properties and calculated their respective contributions. The results show that source-resolved mass concentrations and extinction coefficients had varying contributions. This discrepancy between the source-based mass concentration and extinction coefficient was mainly due to differences between the source-dependent aerosol size distribution and the aerosol optical properties from different sources. View Full-Text
Keywords: mass extinction efficiency; SMP receptor model; size- and source-resolved aerosol optical properties; polydispersity mass extinction efficiency; SMP receptor model; size- and source-resolved aerosol optical properties; polydispersity
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Jung, C.H.; Lee, J.Y.; Um, J.; Lee, S.S.; Yoon, Y.J.; Kim, Y.P. Estimation of Source-Based Aerosol Optical Properties for Polydisperse Aerosols from Receptor Models. Appl. Sci. 2019, 9, 1443.

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