Articles | Volume 15, issue 16
https://doi.org/10.5194/acp-15-9327-2015
https://doi.org/10.5194/acp-15-9327-2015
Research article
 | 
21 Aug 2015
Research article |  | 21 Aug 2015

The influences of mass loading and rapid dilution of secondary organic aerosol on particle volatility

K. R. Kolesar, C. Chen, D. Johnson, and C. D. Cappa

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Cited articles

Abramson, E., Imre, D., Beranek, J., Wilson, J., and Zelenyuk, A.: Experimental determination of chemical diffusion within secondary organic aerosol particles, Phys. Chem. Chem. Phys., 15, 2983–2991, https://doi.org/10.1039/c2cp44013j, 2013.
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Cappa, C. D.: A model of aerosol evaporation kinetics in a thermodenuder, Atmospheric Measurement Techniques, 3, 579-592, 10.5194/amt-3-579-2010, 2010.
Cappa, C. D. and Jimenez, J. L.: Quantitative estimates of the volatility of ambient organic aerosol, Atmos. Chem. Phys., 10, 5409–5424, https://doi.org/10.5194/acp-10-5409-2010, 2010.
Cappa, C. D. and Wilson, K. R.: Evolution of organic aerosol mass spectra upon heating: implications for OA phase and partitioning behavior, Atmos. Chem. Phys., 11, 1895–1911, https://doi.org/10.5194/acp-11-1895-2011, 2011.
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Short summary
Secondary organic aerosol from the dark ozonolysis of α‑pinene was formed at a range of mass loadings from 1 to 800μg m-3. The amount of mass loss during evaporation in a thermodenuder was found to be independent of mass loading. A kinetic model of evaporation was fit to the observations and good agreement was obtained when the particle was either composed of dimers that decompose into semi-volatile monomers or when it was composed of low-volatility compounds that evaporate directly.
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