Articles | Volume 20, issue 12
https://doi.org/10.5194/acp-20-7575-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-7575-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
30 Jun 2020
Research article |
| 30 Jun 2020
| 30 Jun 2020
Synergistic enhancement of urban haze by nitrate uptake into transported hygroscopic particles in the Asian continental outflow
Jihoon Seo
Environment, Health and Welfare Research Center, Korea Institute of
Science and Technology, Seoul, 02792, South Korea
School of Earth and Environmental Sciences, Seoul National University,
Seoul, 08826, South Korea
Yong Bin Lim
Department of Chemical Engineering and Material Science, Ewha Womans
University, Seoul, 03760, South Korea
Daeok Youn
Department of Earth Science Education, Chungbuk National University,
Cheongju, 28644, South Korea
Jin Young Kim
CORRESPONDING AUTHOR
Environment, Health and Welfare Research Center, Korea Institute of
Science and Technology, Seoul, 02792, South Korea
Hyoun Cher Jin
Environment, Health and Welfare Research Center, Korea Institute of
Science and Technology, Seoul, 02792, South Korea
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23 citations as recorded by crossref.
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- Intra–Community Scale Variability of Air Quality in the Center of a Megacity in South Korea: A High-Density Cost-Effective Sensor Network Y. Park et al. 10.3390/app11199105
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- Aerosol liquid water in PM2.5 and its roles in secondary aerosol formation at a regional site of Yangtze River Delta R. Shi et al. 10.1016/j.jes.2023.04.030
- Recent trends in vanadium-based SCR catalysts for NOx reduction in industrial applications: stationary sources B. Ye et al. 10.1186/s40580-022-00341-7
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- Seasonal chemical characteristics and formation of potential secondary aerosols of a remote area in South Korea using an oxidation flow reactor S. Kang et al. 10.1016/j.atmosenv.2025.121216
- Particulate Nitrosamines and Nitramines in Seoul and Their Major Sources: Primary Emission versus Secondary Formation N. Choi et al. 10.1021/acs.est.1c01503
- Compromised Improvement of Poor Visibility Due to PM Chemical Composition Changes in South Korea J. Jeong et al. 10.3390/rs14215310
- Evidence of haze-driven secondary production of supermicrometer aerosol nitrate and sulfate in size distribution data in South Korea J. Schlosser et al. 10.5194/acp-22-7505-2022
- Source identification of ultrafine particulate matter and ammonia emissions in the metropolitan area J. Heo et al. 10.4491/eer.2024.074
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- The effect of cross-regional transport on ozone and particulate matter pollution in China: A review of methodology and current knowledge K. Qu et al. 10.1016/j.scitotenv.2024.174196
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- Potential influence of ammonia reduction on particulate nitrate concentration in South Korea J. Kim et al. 10.1016/j.jhazmat.2025.138675
- Assessment of long-range transboundary aerosols in Seoul, South Korea from Geostationary Ocean Color Imager (GOCI) and ground-based observations S. Lee et al. 10.1016/j.envpol.2020.115924
- Ineffective implementation of emergency reduction measures against high concentrations of particulate matter in Seoul, Republic of Korea C. Ho & K. Kim 10.1007/s10661-023-11754-0
- Spatial Distributions of PM2.5 Concentrations, Chemical Constituents, and Acidity for PM2.5 Pollution Events and Their Potential Source Contribution: Based on Observations from a Nationwide Air Quality Monitoring Network for 2018-2019 M. Byun et al. 10.5572/KOSAE.2022.38.4.508
- High efficiency of nitric acid controls in alleviating particulate nitrate in livestock and urban areas in South Korea H. Kim et al. 10.1039/D2EA00051B
- Spatiotemporal variability of the PM2.5 distribution and weather anomalies during severe pollution events: Observations from 462 air quality monitoring stations across South Korea S. Han et al. 10.1016/j.apr.2023.101676
- Characteristics and Reduction Directions of Fine Particles by Regions in Korea E. Choi et al. 10.5572/KOSAE.2023.39.5.600
- Impact of NH3 Emissions on Particulate Matter Pollution in South Korea: A Case Study of the Seoul Metropolitan Area C. Shim et al. 10.3390/atmos13081227
23 citations as recorded by crossref.
- Review of Smog Chamber Research Trends J. Kim et al. 10.5572/KOSAE.2023.39.5.866
- Spatial Correlation Analysis on PM2.5 Local Variability in the Chungcheong Area J. Seo et al. 10.5572/KOSAE.2024.40.1.131
- Intra–Community Scale Variability of Air Quality in the Center of a Megacity in South Korea: A High-Density Cost-Effective Sensor Network Y. Park et al. 10.3390/app11199105
- A visibility-based estimation of PM2.5 concentrations in Pyongyang, North Korea: Current status and long-term trends J. Seo et al. 10.1016/j.jclepro.2023.136007
- Aerosol liquid water in PM2.5 and its roles in secondary aerosol formation at a regional site of Yangtze River Delta R. Shi et al. 10.1016/j.jes.2023.04.030
- Recent trends in vanadium-based SCR catalysts for NOx reduction in industrial applications: stationary sources B. Ye et al. 10.1186/s40580-022-00341-7
- Impacts of the East Asia monsoon on the PM2.5 acidity in Hanoi P. Hien et al. 10.1016/j.apr.2024.102304
- Seasonal chemical characteristics and formation of potential secondary aerosols of a remote area in South Korea using an oxidation flow reactor S. Kang et al. 10.1016/j.atmosenv.2025.121216
- Particulate Nitrosamines and Nitramines in Seoul and Their Major Sources: Primary Emission versus Secondary Formation N. Choi et al. 10.1021/acs.est.1c01503
- Compromised Improvement of Poor Visibility Due to PM Chemical Composition Changes in South Korea J. Jeong et al. 10.3390/rs14215310
- Evidence of haze-driven secondary production of supermicrometer aerosol nitrate and sulfate in size distribution data in South Korea J. Schlosser et al. 10.5194/acp-22-7505-2022
- Source identification of ultrafine particulate matter and ammonia emissions in the metropolitan area J. Heo et al. 10.4491/eer.2024.074
- Reducing particulate NO3− of PM2.5 under an ammonia-rich environment: Role of NH3 and aerosol pH using ISORROPIA-II model J. Choi et al. 10.1016/j.atmosenv.2024.120988
- The effect of cross-regional transport on ozone and particulate matter pollution in China: A review of methodology and current knowledge K. Qu et al. 10.1016/j.scitotenv.2024.174196
- Characteristics of secondary aerosol formation during shortened multiday reaction experiments in a smog chamber: Effects of relative humidity and ammonia H. Kim et al. 10.1016/j.scitotenv.2024.176740
- Potential influence of ammonia reduction on particulate nitrate concentration in South Korea J. Kim et al. 10.1016/j.jhazmat.2025.138675
- Assessment of long-range transboundary aerosols in Seoul, South Korea from Geostationary Ocean Color Imager (GOCI) and ground-based observations S. Lee et al. 10.1016/j.envpol.2020.115924
- Ineffective implementation of emergency reduction measures against high concentrations of particulate matter in Seoul, Republic of Korea C. Ho & K. Kim 10.1007/s10661-023-11754-0
- Spatial Distributions of PM2.5 Concentrations, Chemical Constituents, and Acidity for PM2.5 Pollution Events and Their Potential Source Contribution: Based on Observations from a Nationwide Air Quality Monitoring Network for 2018-2019 M. Byun et al. 10.5572/KOSAE.2022.38.4.508
- High efficiency of nitric acid controls in alleviating particulate nitrate in livestock and urban areas in South Korea H. Kim et al. 10.1039/D2EA00051B
- Spatiotemporal variability of the PM2.5 distribution and weather anomalies during severe pollution events: Observations from 462 air quality monitoring stations across South Korea S. Han et al. 10.1016/j.apr.2023.101676
- Characteristics and Reduction Directions of Fine Particles by Regions in Korea E. Choi et al. 10.5572/KOSAE.2023.39.5.600
- Impact of NH3 Emissions on Particulate Matter Pollution in South Korea: A Case Study of the Seoul Metropolitan Area C. Shim et al. 10.3390/atmos13081227
Latest update: 11 Jul 2025
Short summary
This study investigates the synergistic role of transported regional haze in increasing local inorganic aerosols. PM2.5 data measured at Seoul, South Korea, together with a thermodynamic model show that the transported haze particles from the polluted continent are richer in inorganics and wetter than the local haze particles. The transported wet particles readily increase the inorganic aerosols through the uptake of HNO3 in NOx- and NH3-rich urban environments like Seoul.
This study investigates the synergistic role of transported regional haze in increasing local...
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