Articles | Volume 26, issue 8
https://doi.org/10.5194/acp-26-5313-2026
https://doi.org/10.5194/acp-26-5313-2026
Research article
 | 
21 Apr 2026
Research article |  | 21 Apr 2026

Impacts of summertime photochemical aging on the physicochemical properties of aerosols in a Paris suburban forest region

Chenjie Yu, Paola Formenti, Joel F. de Brito, Astrid Bauville, Antonin Bergé, Hichem Bouzidi, Mathieu Cazaunau, Manuela Cirtog, Claudia Di Biagio, Ludovico Di Antonio, Cécile Gaimoz, Franck Maisonneuve, Pascal Zapf, Tobias Seubert, Simone T. Andersen, Patrick Dewald, Gunther N. T. E. Türk, John N. Crowley, Alexandre Kukui, Chaoyang Xue, Cyrielle Denjean, Olivier Garrouste, Jean-Claude Etienne, Huihui Wu, James D. Allan, Dantong Liu, Yangzhou Wu, Christopher Cantrell, and Vincent Michoud

Data sets

ACROSS_IMTNE_RambForest_AMS_BelowCanopy_L2 Joel F. de Brito and Veronique Riffault https://doi.org/10.25326/492

ACROSS_MPIC_RambForest_NOx_1min_L2 John Crowley https://doi.org/10.25326/687

ACROSS_LPC2E_Rambforest_OH_L2 Alexandre Kukui https://doi.org/10.25326/510

ACROSS_LISA_RambForest_AETH-Abs_PM1_1-Min_L2-station_processed Ludovico Di Antonio and Claudia Di Biagio https://doi.org/10.25326/669

ACROSS_2022_RambForest_LISA_PTRMS_VOCs_Belowcanopy_10min_20220617 - 20220723 Vincent Michoud and Hichem Bouzidi https://doi.org/10.25326/685

ACROSS_CNRM_RambForest_MTO-1MIN_L2 Cyrielle Denjean https://doi.org/10.25326/437

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Short summary
We presented a field measurement in a Paris suburban forest region to characterise the impacts of photochemical aging process on aerosol physical chemical properties. Photochemical production of organic aerosols increased forest fine particle mass and significantly enhanced absorption of short-wavelength sunlight. This study highlights the critical need to incorporate light absorbing carbonaceous particles formation mechanisms into models to accurately simulate their direct radiative impacts.
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