Articles | Volume 25, issue 22
https://doi.org/10.5194/acp-25-16797-2025
© Author(s) 2025. 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-25-16797-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
25 Nov 2025
Research article |
| 25 Nov 2025
| 25 Nov 2025
HONO formation mechanisms and impacts on ambient oxidants in coastal regions of Fujian, China
Haoran Zhang
State Key Laboratory of Severe Weather Meteorological Science and Technology, Nanjing University, Nanjing, 210023, China
Chengchun Shi
Fujian Academy of Environmental Sciences, Fuzhou, 350013, China
Fujian Key Laboratory of Environmental Engineering, Fuzhou, 350013, China
Chuanyou Ying
State Key Laboratory of Severe Weather Meteorological Science and Technology, Nanjing University, Nanjing, 210023, China
Fuzhou Research Academy of Environmental Sciences, Fuzhou, 350013, China
Shengheng Weng
Fujian Institute of Meteorological Sciences, China Meteorological Administration, Fuzhou, 350001, China
Erling Ni
Fujian Academy of Environmental Sciences, Fuzhou, 350013, China
Fujian Key Laboratory of Environmental Engineering, Fuzhou, 350013, China
Lanbu Zhao
State Key Laboratory of Severe Weather Meteorological Science and Technology, Nanjing University, Nanjing, 210023, China
Peiheng Yang
State Key Laboratory of Severe Weather Meteorological Science and Technology, Nanjing University, Nanjing, 210023, China
Keqin Tang
Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
Xueyu Zhou
State Key Laboratory of Severe Weather Meteorological Science and Technology, Nanjing University, Nanjing, 210023, China
Chuanhua Ren
State Key Laboratory of Severe Weather Meteorological Science and Technology, Nanjing University, Nanjing, 210023, China
Xuguang Chi
State Key Laboratory of Severe Weather Meteorological Science and Technology, Nanjing University, Nanjing, 210023, China
Derong Zhou
School of Atmospheric Sciences, Nanjing University, Nanjing, 210023, China
Mengmeng Li
State Key Laboratory of Severe Weather Meteorological Science and Technology, Nanjing University, Nanjing, 210023, China
Nan Li
Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
Tengyu Liu
State Key Laboratory of Severe Weather Meteorological Science and Technology, Nanjing University, Nanjing, 210023, China
State Key Laboratory of Severe Weather Meteorological Science and Technology, Nanjing University, Nanjing, 210023, China
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Cited
7 citations as recorded by crossref.
- O3–NOx–VOCs sensitivity in major Chinese regions: detailed insights from GEMS satellite hourly observations C. Huang et al. https://doi.org/10.5194/acp-26-10221-2026
- Nitrous Acid Formation in Wildfire Plumes: Implications for Atmospheric Oxidation and Ozone Pollution H. Zhang et al. https://doi.org/10.1021/acs.est.6c12013
- A dataset of vertical profiles of O3 and HONO from the hyperspectral vertical remote sensing network in China (2021–2024) T. Zou et al. https://doi.org/10.5194/essd-18-3559-2026
- Disentangling the source and loss effects of ship-related HONO on coastal ozone over China L. Chen et al. https://doi.org/10.1016/j.envpol.2026.128372
- Observations-Based Approach to the Estimation of the Oxidizing Capacity of the Atmosphere of Central London over the 2000–2024 Period M. Khan et al. https://doi.org/10.1021/acs.jpca.6c02946
- Nitrate photolysis as major summer daytime sources of ambient HONO in Southeastern Coastal China Z. Chen et al. https://doi.org/10.1016/j.atmosres.2026.109210
- Stress-testing condensation-based atmospheric water generation under diesel exhaust T. Merlet et al. https://doi.org/10.1016/j.hazadv.2026.101521
7 citations as recorded by crossref.
- O3–NOx–VOCs sensitivity in major Chinese regions: detailed insights from GEMS satellite hourly observations C. Huang et al. https://doi.org/10.5194/acp-26-10221-2026
- Nitrous Acid Formation in Wildfire Plumes: Implications for Atmospheric Oxidation and Ozone Pollution H. Zhang et al. https://doi.org/10.1021/acs.est.6c12013
- A dataset of vertical profiles of O3 and HONO from the hyperspectral vertical remote sensing network in China (2021–2024) T. Zou et al. https://doi.org/10.5194/essd-18-3559-2026
- Disentangling the source and loss effects of ship-related HONO on coastal ozone over China L. Chen et al. https://doi.org/10.1016/j.envpol.2026.128372
- Observations-Based Approach to the Estimation of the Oxidizing Capacity of the Atmosphere of Central London over the 2000–2024 Period M. Khan et al. https://doi.org/10.1021/acs.jpca.6c02946
- Nitrate photolysis as major summer daytime sources of ambient HONO in Southeastern Coastal China Z. Chen et al. https://doi.org/10.1016/j.atmosres.2026.109210
- Stress-testing condensation-based atmospheric water generation under diesel exhaust T. Merlet et al. https://doi.org/10.1016/j.hazadv.2026.101521
Saved (final revised paper)
Latest update: 18 Sep 2026
Short summary
This study reports a unique diurnal pattern of nitrous acid (HONO), featuring higher concentrations around noon, based on one-month measurements in coastal Fujian, southeast China. Using an improved chemical transport model, we successfully reproduced the observed HONO levels and temporal variations. Further process analyses and sensitivity experiments quantified the formation mechanisms of HONO in coastal areas and shed light on its impact on the formation of OH radicals and ozone.
This study reports a unique diurnal pattern of nitrous acid (HONO), featuring higher...
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