Articles | Volume 22, issue 10
Atmos. Chem. Phys., 22, 6971–6987, 2022
Atmos. Chem. Phys., 22, 6971–6987, 2022
Research article
31 May 2022
Research article | 31 May 2022

Reversible and irreversible gas–particle partitioning of dicarbonyl compounds observed in the real atmosphere

Jingcheng Hu et al.

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Cited articles

Axson, J. L., Takahashi, K., De Haan, D. O., and Vaida, V.: Gas-phase water-mediated equilibrium between methylglyoxal and its geminal diol, P. Natl. Acad. Sci. USA, 107, 6687–6692,, 2010. 
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Curry, L. A., Tsui, W. G., and McNeill, V. F.: Technical note: Updated parameterization of the reactive uptake of glyoxal and methylglyoxal by atmospheric aerosols and cloud droplets, Atmos. Chem. Phys., 18, 9823–9830,, 2018. 
Short summary
The gas–particle partitioning process of glyoxal and methylglyoxal could contribute to secondary organic aerosol formation. Here, we launched five observations in different seasons and simultaneously measured glyoxal and methylglyoxal in the gas and particle phases. Compared to reversible pathways, irreversible pathways played a dominant role with a proportion of more than 90 % in the ambient atmosphere, and the proportion was influenced by relative humidity and inorganic components in aerosols.
Final-revised paper