Articles | Volume 26, issue 18
https://doi.org/10.5194/acp-26-13303-2026
© 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-26-13303-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Sep 2026
Research article |
| 22 Sep 2026
| 22 Sep 2026
Apportioning light absorption of ambient aerosols to black carbon, brown carbon, and lensing effect using a PAX-ISS hybrid method: insights into absorption enhancement
Yi Shen
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Department of Atmospheric Science & School of Earth Science, Yunnan University, Kunming 650500, China
Guorui Zhi
CORRESPONDING AUTHOR
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Wenjing Jin
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Yao Kong
Dongying Meteorological Bureau, Dongying 257091, China
Yuzhe Zhang
CORRESPONDING AUTHOR
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Zhengying Li
Beijing Municipal Ecological and Environmental Monitoring Center, Beijing 100048, China
Jianzhong Sun
School of Physical Education, Chizhou University, Chizhou 247000, China
Yuankai Wang
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Zhijian Liang
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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Short summary
A novel PAX-ISS method apportions aerosol light absorption to black carbon (BC), brown carbon (BrC), and the lensing effect. Field measurements reveal BC dominance, ~10 % annual BrC contribution, and a 40.0 % average lensing role in light absorption with strong spectral-seasonal variations. We provide observational indications of BrC's shortwave "blocking effect", which offsets lensing. This approach offers robust constraints for aerosol optics and climate modeling.
A novel PAX-ISS method apportions aerosol light absorption to black carbon (BC), brown carbon...
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