Articles | Volume 26, issue 9
https://doi.org/10.5194/acp-26-6147-2026
© Author(s) 2026. 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-26-6147-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
08 May 2026
Research article |
| 08 May 2026
| 08 May 2026
Investigating the role of ammonia in enhancing secondary organic aerosol formation from the co-photooxidation of anthropogenic and biogenic VOCs
Yongxin Yan
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
Yufei Song
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
Yushi Gong
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
Shudan Wei
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
Zhaolin Wang
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
Haijie Zhang
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
Yanqin Ren
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
Hong Li
CORRESPONDING AUTHOR
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
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Short summary
This work examines NH3 effects on photochemical oxidation of mixed anthropogenic and biogenic volatile organic compounds (VOC) under high-NOx conditions. NH3 promotes nucleation and accelerates secondary organic aerosol (SOA) formation. NH3 enhances carbonyls, strengthens SOA formation via acid-base and radical reactions, and suppresses highly oxygenated organic molecules. Results improve understanding of SOA formation in complex emissions, aiding air quality forecasting.
This work examines NH3 effects on photochemical oxidation of mixed anthropogenic and biogenic...
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