Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 18
Articles | Volume 26, issue 18
https://doi.org/10.5194/acp-26-13617-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-13617-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 18
Research article
 | 
29 Sep 2026
Research article |  | 29 Sep 2026

Tracing biological, anthropogenic, and inorganic sources of coarse aerosols via single-particle fluorescence and optical morphology

Aiden Jönsson, Jinglan Fu, Gabriel Pereira Freitas, Ian Crawford, Pavla Dagsson-Waldhauserová, Radovan Krejci, Yutaka Tobo, Karl Espen Yttri, and Paul Zieger

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Short summary
Coarse-mode aerosols, like dust and bioaerosols, play important roles in environmental and climate processes. We measured fluorescence and morphological properties of key coarse-mode particle types, compared them with previous characterizations, and trained machine learning models with these data to classify unknown particles. This algorithm improves bioaerosol identification and successfully reproduces the annual bioaerosol cycle previously identified in a year of observations from Svalbard.
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