Articles | Volume 25, issue 18
https://doi.org/10.5194/acp-25-11051-2025
© 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-25-11051-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
23 Sep 2025
Research article |
| 23 Sep 2025
| 23 Sep 2025
Laboratory studies on the optical, physical, and chemical properties of fresh and aged biomass burning aerosols
Zheng Yang
Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Institute for Environmental and Climate Research, College of Environment and Climate, Jinan University, Guangzhou 511443, China
Qiaoqiao Wang
CORRESPONDING AUTHOR
Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Institute for Environmental and Climate Research, College of Environment and Climate, Jinan University, Guangzhou 511443, China
Qiyuan Wang
CORRESPONDING AUTHOR
State Key Laboratory of Loess Science, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
National Observation and Research Station of Regional Ecological Environment Change and Comprehensive Management in the Guanzhong Plain, Xi'an 710061, China
Nan Ma
Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Institute for Environmental and Climate Research, College of Environment and Climate, Jinan University, Guangzhou 511443, China
Jie Tian
State Key Laboratory of Loess Science, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Yaqing Zhou
Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Institute for Environmental and Climate Research, College of Environment and Climate, Jinan University, Guangzhou 511443, China
Ge Xu
Department of Atmospheric Environmental Science and Engineering, Xi'an Institute for Innovative Earth Environment Research, Xi'an 710061, China
Miao Gao
Department of Atmospheric Environmental Science and Engineering, Xi'an Institute for Innovative Earth Environment Research, Xi'an 710061, China
Xiaoxian Zhou
Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Institute for Environmental and Climate Research, College of Environment and Climate, Jinan University, Guangzhou 511443, China
Yang Zhang
State Key Laboratory of Loess Science, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Weikang Ran
State Key Laboratory of Loess Science, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Ning Yang
Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Institute for Environmental and Climate Research, College of Environment and Climate, Jinan University, Guangzhou 511443, China
Jiangchuan Tao
Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Institute for Environmental and Climate Research, College of Environment and Climate, Jinan University, Guangzhou 511443, China
Juan Hong
Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Institute for Environmental and Climate Research, College of Environment and Climate, Jinan University, Guangzhou 511443, China
Yunfei Wu
Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
Junji Cao
Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
Yafang Cheng
Minerva Independent Research Group, Max Planck Institute for Chemistry, Mainz 55128, Germany
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Short summary
Our results demonstrate that the reduction in mass absorption efficiency from biomass burning is mainly driven by the decline in the imaginary part, with particle size playing a minor role. And light absorption of oxygenated brown carbon (BrC) increases significantly with aging, but hydrocarbon-like BrC decreases over time. These results emphasize the necessity to classify BrC into different groups based on their mass absorption efficiency and atmospheric behavior in climate models.
Our results demonstrate that the reduction in mass absorption efficiency from biomass burning is...
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