Articles | Volume 20, issue 24
https://doi.org/10.5194/bg-20-4969-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/bg-20-4969-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Dec 2023
Research article |
| 16 Dec 2023
| 16 Dec 2023
Origin of secondary fatty alcohols in atmospheric aerosols in a cool–temperate forest based on their mass size distributions
Yuhao Cui
Division of Earth System Science, Graduate School of Environmental Science, Hokkaido University, Sapporo, 060-0810, Japan
Institute of Low Temperature Science, Hokkaido University, Sapporo, 060-0819, Japan
Eri Tachibana
Institute of Low Temperature Science, Hokkaido University, Sapporo, 060-0819, Japan
Kimitaka Kawamura
Chubu Institute for Advanced Studies, Chubu University, Kasugai, 487-8501, Japan
Institute of Low Temperature Science, Hokkaido University, Sapporo, 060-0819, Japan
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We investigated the specific plant species that act as a source of secondary fatty alcohols (SFAs) in atmospheric aerosols and their emission processes. Our study at a cool-temperate forest site suggested that SFAs in aerosols originated from conifer leaf wax and their atmospheric emission amount is primarily controlled by conifer abundance and the phenology of leaves. Our findings provide insight into estimating the global atmospheric emission flux of primary biological aerosol particles.
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Short summary
Fatty alcohols (FAs) are major components of surface lipids in plant leaves and serve as surface-active aerosols. Our study on the aerosol size distributions in a forest suggests that secondary FAs (SFAs) originated from plant waxes and that leaf senescence status is likely an important factor controlling the size distribution of SFAs. This study provides new insights into the sources of primary biological aerosol particles (PBAPs) and their effects on the aerosol ice nucleation activity.
Fatty alcohols (FAs) are major components of surface lipids in plant leaves and serve as...
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