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Open AccessArticle

Simultaneous Measurements of Chemical Compositions of Fine Particles during Winter Haze Period in Urban Sites in China and Korea

1
School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, 123 Cheomdangwagiro, Buk-gu, Gwangju 61005, Korea
2
State Key Joint Laboratory of Environmental Simulation and Pollution Control, and Beijing Innovation Center for Engineering Sciences and Advanced Technology, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
3
Department of Environmental Engineering, Mokpo National University, Muan 58554, Korea
4
Biomedical Omics Center, Korea Basic Science Institute, Cheongju 28119, Korea
5
Division of Earth and Environmental Sciences, Korea Basic Science Institute, Cheongju 28119, Korea
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Current address: Observation and Forecast Research Division, National Institute of Meteorological Sciences, Jeju-do 690-011, Korea.
§
Current address: Institute of Environmental Geosciences, University of Grenoble, 38900 Grenoble, France.
Current address: Institute of Environmental Science and Meteorology, University of the Philippines-Diliman, Quezon city 1101, Philippine.
Current address: Department of Earth and Environmental Sciences, Pukyong National University, Busan 48513, Korea.
Atmosphere 2020, 11(3), 292; https://doi.org/10.3390/atmos11030292
Received: 12 February 2020 / Revised: 13 March 2020 / Accepted: 14 March 2020 / Published: 16 March 2020
(This article belongs to the Special Issue Chemical Analysis Methods for Particle-Phase Pollutants)
We performed simultaneous measurements of chemical compositions of fine particles in Beijing, China and Gwangju, Korea to better understand their sources during winter haze period. We identified PM2.5 events in Beijing, possibly caused by a combination of multiple primary combustion sources (biomass burning, coal burning, and vehicle emissions) and secondary aerosol formation under stagnant conditions and/or dust sources under high wind speeds. During the PM2.5 events in Gwangju, the contribution of biomass burning and secondary formation of nitrate and organics to the fine particles content significantly increased under stagnant conditions. We commonly observed the increases of nitrogen-containing organic compounds and biomass burning inorganic (K+) and organic (levoglucosan) markers, suggesting the importance of biomass burning sources during the winter haze events (except dust event cases) at both sites. Pb isotope ratios indicated that the fraction of Pb originated from possibly industry and coal combustion sources increased during the PM2.5 events in Gwangju, relative to nonevent days. View Full-Text
Keywords: PM2.5; haze; chemical compositions; organic compounds PM2.5; haze; chemical compositions; organic compounds
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Park, M.; Wang, Y.; Chong, J.; Lee, H.; Jang, J.; Song, H.; Kwak, N.; Borlaza, L.J.S.; Maeng, H.; Cosep, E.M.R.; Denna, M.C.F.J.; Chen, S.; Seo, I.; Bae, M.-S.; Jang, K.-S.; Choi, M.; Kim, Y.H.; Park, M.; Ryu, J.-S.; Park, S.; Hu, M.; Park, K. Simultaneous Measurements of Chemical Compositions of Fine Particles during Winter Haze Period in Urban Sites in China and Korea. Atmosphere 2020, 11, 292.

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