Articles | Volume 18, issue 8
https://doi.org/10.5194/acp-18-5455-2018
https://doi.org/10.5194/acp-18-5455-2018
Research article
 | 
20 Apr 2018
Research article |  | 20 Apr 2018

Studying volatility from composition, dilution, and heating measurements of secondary organic aerosols formed during α-pinene ozonolysis

Kei Sato, Yuji Fujitani, Satoshi Inomata, Yu Morino, Kiyoshi Tanabe, Sathiyamurthi Ramasamy, Toshihide Hikida, Akio Shimono, Akinori Takami, Akihiro Fushimi, Yoshinori Kondo, Takashi Imamura, Hiroshi Tanimoto, and Seiji Sugata

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Cited articles

Compernolle, S., Ceulemans, K., and Müller, J.-F.: EVAPORATION: a new vapour pressure estimation methodfor organic molecules including non-additivity and intramolecular interactions, Atmos. Chem. Phys., 11, 9431–9450, https://doi.org/10.5194/acp-11-9431-2011, 2011.
Dockery, D. W., Pope III, A., Xu, X., Spengler, J. D., Ware, J. H., Fay, M. E., Ferris Jr., B. G., and Speizer, F. E.: An association between air pollution and mortality in six US cities, New Engl. J. Med., 329, 1753–1759, https://doi.org/10.1056/NEJM199312093292401, 1993.
Epstein, S. A., Riipinen, I., and Donahue, N. M.: A semiempirical correlation between enthalpy of vaporization and saturation concentration for organic aerosol, Environ. Sci. Technol., 44, 743–748, https://doi.org/10.1021/es902497z, 2010.
Short summary
The volatility distribution of α-pinene secondary organic aerosols (SOAs) was evaluated with a wide range of techniques, including offline chemical analysis and dilution- and heat-induced evaporation. Compounds less volatile than semi-volatile products, i.e., highly oxygenated molecules and dimers, were identified as products, and the SOA evaporation with equilibration timescales of 24–46 min after dilution were observed.
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