Articles | Volume 23, issue 5
https://doi.org/10.5194/acp-23-3015-2023
© Author(s) 2023. 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-23-3015-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
07 Mar 2023
Research article |
| 07 Mar 2023
| 07 Mar 2023
Characteristics of particulate-bound n-alkanes indicating sources of PM2.5 in Beijing, China
Jiyuan Yang
College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
Guoyang Lei
College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
Chang Liu
College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
Yutong Wu
College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
Kai Hu
College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
Jinfeng Zhu
College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
Junsong Bao
State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
Weili Lin
College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
Jun Jin
CORRESPONDING AUTHOR
College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
Beijing Engineering Research Center of Food Environment and Public Health, Minzu University of China, Beijing 100081, China
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Short summary
The characteristics of n-alkanes and the contributions of various sources of PM2.5 in the atmosphere in Beijing were studied. There were marked seasonal and diurnal differences in the n-alkane concentrations (p<0.01). Particulate-bound n-alkanes were supplied by anthropogenic and biogenic sources; fossil fuel combustion was the dominant contributor. Vehicle exhausts strongly affect PM2.5 pollution. Controlling vehicle exhaust emissions is key to control n-alkane and PM2.5 pollution in Beijing.
The characteristics of n-alkanes and the contributions of various sources of PM2.5 in the...
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