Articles | Volume 24, issue 9
https://doi.org/10.5194/acp-24-5625-2024
https://doi.org/10.5194/acp-24-5625-2024
Research article
 | 
15 May 2024
Research article |  | 15 May 2024

Suppressed atmospheric chemical aging of cooking organic aerosol particles in wintertime conditions

Wenli Liu, Longkun He, Yingjun Liu, Keren Liao, Qi Chen, and Mikinori Kuwata

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Subject: Aerosols | Research Activity: Laboratory Studies | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Cited articles

Abdullahi, K. L., Delgado-Saborit, J. M., and Harrison, R. M.: Emissions and indoor concentrations of particulate matter and its specific chemical components from cooking: A review, Atmos. Environ., 71, 260–294, https://doi.org/10.1016/j.atmosenv.2013.01.061, 2013. 
Berkemeier, T., Mishra, A., Mattei, C., Huisman, A. J., Krieger, U. K., and Pöschl, U.: Ozonolysis of oleic acid aerosol revisited: multiphase chemical kinetics and reaction mechanisms, ACS Earth Space Chem., 5, 3313–3323, https://doi.org/10.1021/acsearthspacechem.1c00232, 2021. 
Broekhuizen, K. E., Thornberry, T., Kumar, P. P., and Abbatt, J. P. D.: Formation of cloud condensation nuclei by oxidative processing: Unsaturated fatty acids, J. Geophys. Res.-Atmos., 109, D24206, https://doi.org/10.1029/2004JD005298, 2004. 
Budisulistiorini, S. H., Chen, J., Itoh, M., and Kuwata, M.: Can online aerosol mass spectrometry analysis classify secondary organic aerosol (SOA) and oxidized primary organic aerosol (OPOA)? A case study of laboratory and field studies of Indonesian biomass burning, ACS Earth Space Chem., 5, 3511–3522, https://doi.org/10.1021/acsearthspacechem.1c00319, 2021. 
Ceriani, R., Gonçalves, C. B., Rabelo, J., Caruso, M., Cunha, A. C. C., Cavaleri, F. W., Batista, E. A. C., and Meirelles, A. J. A.: Group Contribution Model for Predicting Viscosity of Fatty Compounds, J. Chem. Eng. Data, 52, 965–972, https://doi.org/10.1021/je600552b, 2007. 
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Short summary
Cooking is a major source of particles in urban areas. Previous studies demonstrated that the chemical lifetimes of cooking organic aerosols (COAs) were much shorter (~minutes) than the values reported by field observations (~hours). We conducted laboratory experiments to resolve the discrepancy by considering suppressed reactivity under low temperature. The parameterized k2–T relationships and observed surface temperature data were used to estimate the chemical lifetimes of COA particles.
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