Particle and Aerosol Research
Vol. 14, No. 4, December 2018, Pages 135-144
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ISSN : 1738-8716 (Print)
ISSN : 2287-8130 (Online)
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Estimation of the major sources for organic aerosols at the Anmyeon Island GAW station
Sanghee Han1), Ji Yi Lee1), Jongsik Lee2), Jongbae Heo3), Chang Hoon Jung4), Eun-Sill Kim5), Yong Pyo Kim6) *
1)Department of Environmental Science and Engineering, Ewha Womans University
2)Department of Renewable Energy Convergence, Chosun University
3)Department of Environmental Health, Seoul National University
4)Department of Health Management, Kyungin Women¡¯s College
5)Korea Global Atmosphere Watch Center, Korea Meteorological Administration
6)Department of Chemical Engineering & Materials Science, Ewha Womans University
*Corresponding author.
Tel.: +81-2-3277-2832, E-mail: yong@ewha.ac.kr
Received 06 November 2018, Revised 21 December 2018, Accepted 22 December 2018, Available online 31 December 2018
http://dx.doi.org/10.11629/jpaar.2018.14.4.135
Abstracts
Based on a two-year measurement data, major sources for the ambient carbonaceous aerosols at the Anmyeon Global Atmosphere Watch (GAW) station were identified by using the Positive Matrix Factorization (PMF) model. The particulate matter less than or equal to 2.5 ¥ìm in aerodynamic diameter (PM2.5) aerosols were sampled between June 2015 to May 2017 and carbonaceous species including ~80 organic compounds were analyzed. When the number of factors was 5 or 6, the performance evaluation parameters showed the best results, With 6 factor case, the characteristics of transported factors were clearer. The 6 factors were identified with various analyses including chemical characteristics and air parcel movement analysis. The 6 factors with their relative contributions were (1)anthropogenic Secondary Organic Aerosols (SOA) (10.3%), (2) biogenic sources (24.8%), (3) local biomass burning (26.4%), (4) transported biomass burning (7.3%), (5) combustion related sources (12.0%), and (6) transported sources (19.2%). The air parcel movement analysis result and seasonal variation of the contribution of these factors also supported the identification of these factors. Thus, the Anmyeon Island GAW station has been affected by both regional and local sources for the carbonaceous aerosols.
Keywords
Carbonaceous aerosol; Anmyeon Island; Global Atmosphere Watch station; Positive Matrix Factorization; source apportionment
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