Articles | Volume 24, issue 22
https://doi.org/10.5194/acp-24-12575-2024
© Author(s) 2024. 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-24-12575-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
An investigation into atmospheric nitrous acid (HONO) processes in South Korea
Kiyeon Kim
School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
Chul Han Song
CORRESPONDING AUTHOR
School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
Hyojun Lee
School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
Ross Beardsley
Ramboll, Novato, CA 94945, USA
Jinhyeok Yu
School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
Greg Yarwood
Ramboll, Novato, CA 94945, USA
Bonyoung Koo
Bay Area Air Quality Management District, San Francisco, CA 94105, USA
Jasper Madalipay
School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
Jung-Hun Woo
Department of Technology Fusion Engineering, College of Engineering, Konkuk University, Seoul, 05029, Republic of Korea
Seogju Cho
Seoul Metropolitan Government Research Institute of Public Health Environment, 30, Janggunmaeul 3-gil, Gwacheon-si, Gyeonggi-do, 13818, Republic of Korea
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Cited
8 citations as recorded by crossref.
- Inconsistent capacity of potential HONO sources to enhance secondary pollutants: Evidence from WRF-Chem modeling J. Zhang et al. https://doi.org/10.1016/j.jes.2025.02.023
- Source-resolved volatility and oxidation state decoupling in wintertime organic aerosols in Seoul H. Kim et al. https://doi.org/10.5194/acp-26-1145-2026
- NH3-driven HONO production as a potential unknown source during snow cover and melt S. Xie et al. https://doi.org/10.1016/j.envres.2025.121975
- A new parameterization of uptake coefficient of SO2 and its impact on sulfate concentration K. Kim et al. https://doi.org/10.1016/j.atmosenv.2025.121503
- HONO formation mechanisms and impacts on ambient oxidants in coastal regions of Fujian, China H. Zhang et al. https://doi.org/10.5194/acp-25-16797-2025
- Contrasting 2001 and 2020 land cover states: Impacts on heterogeneous HONO chemistry and nitrate formation in China Y. Liu et al. https://doi.org/10.1016/j.jhazmat.2026.142217
- Unveiling Atmospheric HO2 Chemistry under Varying NO Conditions during the KORUS-AQ Campaign K. Kim et al. https://doi.org/10.1021/acsestair.5c00153
- Machine Learning-Driven Source Apportionment of HONO in High-Ammonia Street Canyon Microenvironments C. Sun et al. https://doi.org/10.1021/acsestair.5c00286
8 citations as recorded by crossref.
- Inconsistent capacity of potential HONO sources to enhance secondary pollutants: Evidence from WRF-Chem modeling J. Zhang et al. https://doi.org/10.1016/j.jes.2025.02.023
- Source-resolved volatility and oxidation state decoupling in wintertime organic aerosols in Seoul H. Kim et al. https://doi.org/10.5194/acp-26-1145-2026
- NH3-driven HONO production as a potential unknown source during snow cover and melt S. Xie et al. https://doi.org/10.1016/j.envres.2025.121975
- A new parameterization of uptake coefficient of SO2 and its impact on sulfate concentration K. Kim et al. https://doi.org/10.1016/j.atmosenv.2025.121503
- HONO formation mechanisms and impacts on ambient oxidants in coastal regions of Fujian, China H. Zhang et al. https://doi.org/10.5194/acp-25-16797-2025
- Contrasting 2001 and 2020 land cover states: Impacts on heterogeneous HONO chemistry and nitrate formation in China Y. Liu et al. https://doi.org/10.1016/j.jhazmat.2026.142217
- Unveiling Atmospheric HO2 Chemistry under Varying NO Conditions during the KORUS-AQ Campaign K. Kim et al. https://doi.org/10.1021/acsestair.5c00153
- Machine Learning-Driven Source Apportionment of HONO in High-Ammonia Street Canyon Microenvironments C. Sun et al. https://doi.org/10.1021/acsestair.5c00286
Saved (final revised paper)
Latest update: 30 May 2026
Short summary
We incorporated each HONO process into the current CMAQ modeling framework to enhance the accuracy of HONO mixing ratio predictions. These results expand our understanding of HONO photochemistry and identify crucial sources of HONO that impact the total HONO budget in Seoul, South Korea. Through this investigation, we contribute to resolving discrepancies in understanding chemical transport models, with implications for better air quality management and environmental protection in the region.
We incorporated each HONO process into the current CMAQ modeling framework to enhance the...
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