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-26-13645-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-13645-2026
© 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

Molecular-level characterization of urban aerosol analogues in controlled atmospheric simulations

Elie Al Marj, Ambre Delater, Aline Gratien, Marie Line Torrijos, Juan Camilo Macias Rodriguez, Mathieu Cazaunau, Edouard Pangui, Antonin Bergé, Cécile Gaimoz, Thomas Bertin, Emmanuelle Mebold, Bénédicte Picquet-Varrault, Jean-François Doussin, Clément Buissot, Sophie Lanone, and Patrice Coll

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Short summary
The "PolluRisk" platform simulated two urban scenarios: standard traffic and biomass burning. Using a smog chamber, the study showed that wood heating significantly modified aerosol chemistry, with organic fractions reaching 40 % of PM1 mass. Advanced mass spectrometry identified specific tracers of oxidation and combustion. These results provide a chemical framework for separate biological exposure experiments. 
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