Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 1
Articles | Volume 26, issue 1
https://doi.org/10.5194/acp-26-365-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-365-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 1
Research article
 | 
07 Jan 2026
Research article |  | 07 Jan 2026

Comprehensive non-targeted molecular characterization of organic aerosols in the Amazon rainforest

Denis Leppla, Stefanie Hildmann, Nora Zannoni, Leslie A. Kremper, Bruna A. Holanda, Jonathan Williams, Christopher Pöhlker, Stefan Wolff, Marta Sà, Maria Christina Solci, Ulrich Pöschl, and Thorsten Hoffmann

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Short summary
The chemical composition of organic particles in the Amazon rainforest was investigated to understand how biogenic and human emissions influence the atmosphere in this unique ecosystem. Seasonal patterns were found where wet seasons were dominated by biogenic compounds from natural sources while dry seasons showed increased fire-related pollutants. These findings reveal how emissions, fires and long-range transport affect atmospheric chemistry, with implications for climate models.
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