Estimation of Source-Based Aerosol Optical Properties for Polydisperse Aerosols from Receptor Models
- 주제(키워드) mass extinction efficiency , SMP receptor model , size- and source-resolved aerosol optical properties , polydispersity
- 주제(기타) Chemistry, Multidisciplinary; Materials Science, Multidisciplinary; Physics, Applied
- 설명문(일반) [Jung, Chang Hoon] Kyungin Womens Univ, Dept Hlth Management, 101 Gesan Gil, Incheon 101, South Korea; [Lee, Ji Yi] Ewha Womans Univ, Dept Environm Sci & Engn, 11-1 Daehyun Dong, Seoul 03760, South Korea; [Um, Junshik] Pusan Natl Univ, Dept Atmospher Sci, 2,Busandaehak Ro 63beon Gil, Busan 46241, South Korea; [Lee, Seoung Soo] Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20740 USA; [Yoon, Young Jun] Korea Polar Res Inst, 26 Songdomirae Ro, Incheon 21990, South Korea; [Kim, Yong Pyo] Ewha Womans Univ, Dept Chem Engn & Mat Sci, 11-1 Daehyun Dong, Seoul 03760, South Korea
- 관리정보기술 faculty
- 등재 SCIE, SCOPUS
- OA유형 Green Published, Green Submitted, gold
- 발행기관 MDPI
- 발행년도 2019
- URI http://www.dcollection.net/handler/ewha/000000159830
- 본문언어 영어
- Published As http://dx.doi.org/10.3390/app9071443
초록/요약
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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