Physicochemical characteristics and seasonal variations of PM2.5 in urban, industrial, and suburban areas in South Korea
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Published:2023-12-05
Issue:1
Volume:17
Page:
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ISSN:2287-1160
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Container-title:Asian Journal of Atmospheric Environment
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language:en
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Short-container-title:Asian J. Atmos. Environ
Author:
Hwang KyucheolORCID, Kim JeonghoORCID, Lee Jae YoungORCID, Park Jong-SungORCID, Park SechanORCID, Lee GahyeORCID, Kim Chang HyeokORCID, Kim PilhoORCID, Shin Su HyunORCID, Lee Kwang YulORCID, An Joon-Young, Park Jungmin, Kim Jong BumORCID
Abstract
AbstractAmong countries that are a part of the Organization for Economic Co-operation and Development, South Korea is the most exposed to PM2.5. Despite the country having implemented various strategies to limit PM2.5 emissions, its concentrations are still high enough to pose serious environmental and health concerns. Herein, we monitored various physiochemical properties of PM2.5 across different regions in South Korea from January 1 to December 31, 2021. Specifically, the study area consisted of the city center, industrial complexes, and suburban areas. Before analyzing dynamics of emissions specific to each site, the Clean Air Policy Support System data for the three areas were compared to elucidate their respective primary emission sources. The particle concentrations for the three areas were 21.8–26.44 µg/m3, with the highest concentrations being observed in March. All the three areas exhibited high ratios of NO3− across all seasons. The particle number concentrations in the three sites were 1.3–1.5 × 107, and the peak points of the concentrations were different in every site: city center (40 nm), industrial complexes (60 nm), and suburban areas (80 nm). We also conducted potential source contribution function and conditional bivariate probability function analyses. These analyses were conducted to determine the inflow direction of the pollution sources for high PM2.5 episodes. For the episodes that occurred in spring and winter, there were no differences in the PM2.5 concentrations between the three sites. Overall, the insights gained from this study offer a framework for developing air-quality management policies in South Korea, specifically in the context of PM2.5 emissions.
Funder
National Institute of Environmental Research
Publisher
Springer Science and Business Media LLC
Subject
Atmospheric Science,General Environmental Science
Reference47 articles.
1. Ara Begum, B., Kim, E., Jeong, C.-H., Lee, D.-W., & Hopke, P. K. (2005). Evaluation of the potential source contribution function using the 2002 Quebec forest fire episode. Atmospheric Environment, 39, 3719–3724. https://doi.org/10.1016/j.atmosenv.2005.03.008 2. Arunachalam, S., Wang, B., Davis, N., Baek, B. H., & Levy, J. I. (2011). Effect of chemistry-transport model scale and resolution on population exposure to PM2.5 from aircraft emissions during landing and takeoff. Atmospheric Environment, 45, 3294–3300. https://doi.org/10.1016/j.atmosenv.2011.03.029 3. Bae, C., Kim, B.-U., Kim, H. C., Yoo, C., & Kim, S. (2020). Long-range transport influence on key chemical components of PM2.5 in the Seoul metropolitan area, South Korea, during the years 2012–2016. Atmosphere, 11, 48. https://doi.org/10.3390/atmos11010048 4. Bell, M. L., Dominici, F., Ebisu, K., Zeger, S. L., & Samet, J. M. (2007). Spatial and temporal variation in PM2.5 chemical composition in the United States for health effects studies. Environmental Health Perspectives, 115, 989–995. https://doi.org/10.1289/ehp.9621 5. Bhowmik, H. S., Naresh, S., Bhattu, D., Rastogi, N., Prévôt, A. S. H., & Tripathi, S. N. (2021). Temporal and spatial variability of carbonaceous species (EC; OC; WSOC and SOA) in PM2.5 aerosol over five sites of Indo-Gangetic Plain. Atmospheric Pollution Research, 12, 375–390. https://doi.org/10.1016/j.apr.2020.09.019
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