Articles | Volume 25, issue 7
https://doi.org/10.5194/acp-25-3857-2025
© 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-25-3857-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 Apr 2025
Research article |
| 03 Apr 2025
| 03 Apr 2025
Understanding the long-term trend of organic aerosol and the influences from anthropogenic emission and regional climate change in China
Wenxin Zhang
School of Atmospheric Science, Nanjing University, Nanjing, 210023, China
Yaman Liu
School of Atmospheric Science, Nanjing University, Nanjing, 210023, China
Zhejiang Institute of Meteorological Sciences, Hangzhou, 310008, China
School of Atmospheric Science, Nanjing University, Nanjing, 210023, China
Zhejiang Institute of Meteorological Sciences, Hangzhou, 310008, China
School of Atmospheric Science, Nanjing University, Nanjing, 210023, China
Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, China
Joint International Research Laboratory of Atmospheric and Earth System Sciences and Institute for Climate and Global Change Research, Nanjing University, Nanjing, 210023, China
Kan Huang
Department of Environmental Science and Engineering, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Fudan University, Shanghai, China
Institute of Eco-Chongming, Shanghai, China
IRDR ICoEon Risk Interconnectivity and Governance on Weather/Climate Extremes Impact and Public Health, Fudan University, Shanghai, China
Minghuai Wang
School of Atmospheric Science, Nanjing University, Nanjing, 210023, China
Joint International Research Laboratory of Atmospheric and Earth System Sciences and Institute for Climate and Global Change Research, Nanjing University, Nanjing, 210023, China
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Xiaofei Qin, Leiming Zhang, Guochen Wang, Xiaohao Wang, Qingyan Fu, Jian Xu, Hao Li, Jia Chen, Qianbiao Zhao, Yanfen Lin, Juntao Huo, Fengwen Wang, Kan Huang, and Congrui Deng
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The uncertainties in mercury emissions are much larger from natural sources than anthropogenic sources. A method was developed to quantify the contributions of natural surface emissions to ambient GEM based on PMF modeling. The annual GEM concentration in eastern China showed a decreasing trend from 2015 to 2018, while the relative contribution of natural surface emissions increased significantly from 41 % in 2015 to 57 % in 2018, gradually surpassing those from anthropogenic sources.
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Short summary
Understanding long-term organic aerosol (OA) trends and their driving factors is important for air quality management. Our modeling revealed that OA in China increased by 5.6 % from 1990 to 2019, primarily due to a 32.3 % increase in secondary organic aerosols (SOAs) and an 8.1 % decrease in primary organic aerosols (POAs), both largely driven by changes in anthropogenic emissions. Biogenic SOA increased due to warming but showed little response to changes in anthropogenic nitrogen oxide emissions.
Understanding long-term organic aerosol (OA) trends and their driving factors is important for...
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