Articles | Volume 21, issue 3
https://doi.org/10.5194/acp-21-2287-2021
© Author(s) 2021. 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-21-2287-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Feb 2021
Research article |
| 16 Feb 2021
| 16 Feb 2021
Impacts of coagulation on the appearance time method for new particle growth rate evaluation and their corrections
Runlong Cai
CORRESPONDING AUTHOR
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for
Soft Matter Science and Engineering, Beijing University of Chemical
Technology, Beijing, 100029, China
Institute for Atmospheric and Earth System Research/Physics, Faculty
of Science, University of Helsinki, 00014 Helsinki, Finland
Chenxi Li
School of Environmental Science and Engineering, Shanghai Jiao Tong
University, Shanghai, 200240, China
Xu-Cheng He
Institute for Atmospheric and Earth System Research/Physics, Faculty
of Science, University of Helsinki, 00014 Helsinki, Finland
Chenjuan Deng
State Key Joint Laboratory of Environmental Simulation and Pollution
Control, School of Environment, Tsinghua University, Beijing, 100084, China
Shanghai Key Laboratory of Atmospheric Particle Pollution and
Prevention (LAP3), Department of Environmental Science and Engineering,
Fudan University, Shanghai, 200433, China
Rujing Yin
State Key Joint Laboratory of Environmental Simulation and Pollution
Control, School of Environment, Tsinghua University, Beijing, 100084, China
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for
Soft Matter Science and Engineering, Beijing University of Chemical
Technology, Beijing, 100029, China
Shanghai Key Laboratory of Atmospheric Particle Pollution and
Prevention (LAP3), Department of Environmental Science and Engineering,
Fudan University, Shanghai, 200433, China
Jingkun Jiang
State Key Joint Laboratory of Environmental Simulation and Pollution
Control, School of Environment, Tsinghua University, Beijing, 100084, China
Markku Kulmala
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for
Soft Matter Science and Engineering, Beijing University of Chemical
Technology, Beijing, 100029, China
Institute for Atmospheric and Earth System Research/Physics, Faculty
of Science, University of Helsinki, 00014 Helsinki, Finland
Juha Kangasluoma
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for
Soft Matter Science and Engineering, Beijing University of Chemical
Technology, Beijing, 100029, China
Institute for Atmospheric and Earth System Research/Physics, Faculty
of Science, University of Helsinki, 00014 Helsinki, Finland
Data sets
Impacts of coagulation on the appearance time method for new particle growth rate evaluation and their corrections [Data set] Runlong Cai https://doi.org/10.5281/zenodo.4506345
Short summary
Growth rate determines the survival probability of atmospheric new particles and hence their impacts. We clarify the impacts of coagulation on the values retrieved by the appearance time method, which is widely used for growth rate evaluation. A new formula with coagulation correction is proposed based on derivation and tested using both models and atmospheric data. We show that the sub-3 nm particle growth rate in polluted environments may be overestimated without the coagulation correction.
Growth rate determines the survival probability of atmospheric new particles and hence their...
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