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

Title
Estimation of Source-Based Aerosol Optical Properties for Polydisperse Aerosols from Receptor Models
Authors
Jung, Chang HoonLee, Ji YiUm, JunshikLee, Seoung SooYoon, Young JunKim, Yong Pyo
Ewha Authors
김용표이지이
SCOPUS Author ID
김용표scopus; 이지이scopus
Issue Date
2019
Journal Title
APPLIED SCIENCES-BASEL
ISSN
2076-3417JCR Link
Citation
APPLIED SCIENCES-BASEL vol. 9, no. 7
Keywords
mass extinction efficiencySMP receptor modelsize- and source-resolved aerosol optical propertiespolydispersity
Publisher
MDPI
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
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.
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DOI
10.3390/app9071443
Appears in Collections:
엘텍공과대학 > 화학신소재공학전공 > Journal papers
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