Articles | Volume 26, issue 15
https://doi.org/10.5194/acp-26-10751-2026
© 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-26-10751-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 Aug 2026
Research article |
| 03 Aug 2026
| 03 Aug 2026
Secondary processes driven by multi-factor interactions dominate the aerosol nitroaromatic compound pollution during winter in China
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station (Shanghai Urban Ecosystem Research Station), Ministry of Science and Technology, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China
Yu-Cheng You
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station (Shanghai Urban Ecosystem Research Station), Ministry of Science and Technology, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China
Ting Yang
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station (Shanghai Urban Ecosystem Research Station), Ministry of Science and Technology, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China
Lin Gui
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station (Shanghai Urban Ecosystem Research Station), Ministry of Science and Technology, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China
Jun-Liang Tao
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station (Shanghai Urban Ecosystem Research Station), Ministry of Science and Technology, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China
Tian-Shu Chen
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station (Shanghai Urban Ecosystem Research Station), Ministry of Science and Technology, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China
Hao Xiao
CORRESPONDING AUTHOR
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station (Shanghai Urban Ecosystem Research Station), Ministry of Science and Technology, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China
Mei-Ju Yin
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station (Shanghai Urban Ecosystem Research Station), Ministry of Science and Technology, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China
Hong-Wei Xiao
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station (Shanghai Urban Ecosystem Research Station), Ministry of Science and Technology, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China
Hua-Yun Xiao
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station (Shanghai Urban Ecosystem Research Station), Ministry of Science and Technology, National Forestry and Grassland Administration, 800 Dongchuan Rd., Shanghai 200240, China
Data sets
Dataset X. Yu https://doi.org/10.5281/zenodo.21510754
Short summary
This study presents the characteristics and potential origins of nitroaromatics (NACs) in winter PM2.5 across 11 Chinese cities, along with key factors controlling their formation. We propose that relative humidity- or aerosol liquid water-promoted NAC formation from lab studies may not be universally interpretable in real atmospheres, where multi-factor interactions are critical. This work highlights the need to consider complex field conditions in future research on NAC formation mechanisms.
This study presents the characteristics and potential origins of nitroaromatics (NACs) in winter...
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