Articles | Volume 25, issue 19
https://doi.org/10.5194/acp-25-12409-2025
https://doi.org/10.5194/acp-25-12409-2025
Research article
 | 
08 Oct 2025
Research article |  | 08 Oct 2025

Formation and composition of organic aerosols from the uptake of glyoxal on natural mineral dust aerosols: a laboratory study

Francesco Battaglia, Paola Formenti, Chiara Giorio, Mathieu Cazaunau, Edouard Pangui, Antonin Bergé, Aline Gratien, Diana L. Pereira, Thomas Bertin, Joel F. de Brito, Manolis N. Romanias, Vincent Michoud, Clarissa Baldo, Servanne Chevaillier, Gael Noyalet, Philippe Decorse, Bénédicte Picquet-Varrault, and Jean-François Doussin

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Cited articles

Alvarado, L. M. A., Richter, A., Vrekoussis, M., Hilboll, A., Kalisz Hedegaard, A. B., Schneising, O., and Burrows, J. P.: Unexpected long-range transport of glyoxal and formaldehyde observed from the Copernicus Sentinel-5 Precursor satellite during the 2018 Canadian wildfires, Atmos. Chem. Phys., 20, 2057–2072, https://doi.org/10.5194/acp-20-2057-2020, 2020. 
Atkinson, J. D., Murray, B. J., Woodhouse, M. T., Whale, T. F., Baustian, K. J., Carslaw, K. S., Dobbie, S., O'Sullivan, D., and Malkin, T. L.: The importance of feldspar for ice nucleation by mineral dust in mixed-phase clouds, Nature, 498, 355–358, https://doi.org/10.1038/nature12278, 2013. 
Avzianova, E. and Brooks, S. D.: Raman spectroscopy of glyoxal oligomers in aqueous solutions, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 101, 40–48, https://doi.org/10.1016/j.saa.2012.09.050, 2013. 
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This paper presents an experimental investigation of the interactions between glyoxal, an important volatile organic compound, and mineral dust particles of size and composition typical of natural conditions. We show that their interactions modify, in a definitive way, the concentrations of the gas phase and the surface properties of the dust, which could have important implications for the atmospheric composition and the Earth's climate.
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