Aerosol Research
Aerosol Research
Aerosol Research
Articles | Volume 3, issue 1
Articles | Volume 3, issue 1
https://doi.org/10.5194/ar-3-125-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ar-3-125-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 3, issue 1
Research article
 | 
28 Feb 2025
Research article |  | 28 Feb 2025

Uptake of organic vapours and nitric acid on atmospheric freshly nucleated particles

Yosef Knattrup and Jonas Elm

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Short summary
Using quantum chemical methods, we studied the uptake of first-generation oxidation products onto freshly nucleated particles (FNPs). We find that pinic acid can condense on these small FNPs at realistic atmospheric conditions, thereby contributing to early particle growth. The mechanism involves two pinic acid molecules interacting with each other, showing that direct organic–organic interactions during co-condensation onto the particle contribute to the growth.

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