Articles | Volume 15, issue 14
Atmos. Chem. Phys., 15, 7765–7776, 2015
https://doi.org/10.5194/acp-15-7765-2015
Atmos. Chem. Phys., 15, 7765–7776, 2015
https://doi.org/10.5194/acp-15-7765-2015

Research article 16 Jul 2015

Research article | 16 Jul 2015

Phase partitioning and volatility of secondary organic aerosol components formed from α-pinene ozonolysis and OH oxidation: the importance of accretion products and other low volatility compounds

F. D. Lopez-Hilfiker et al.

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Cited articles

An, W. J., Pathak, R. K., Lee, B.-H., and Pandis, S. N.: Aerosol volatility measurement using an improved thermodenuder: Application to secondary organic aerosol, J. Aerosol Sci., 38, 305–314, https://doi.org/10.1016/j.jaerosci.2006.12.002, 2007.
Blanksby, S. J. and Ellison, G. B.: Bond Dissociation Energies of Organic Molecules, Acc. Chem. Res., 36, 255–263, https://doi.org/10.1021/ar020230d, 2003.
Capouet, M. and Müller, J.-F.: A group contribution method for estimating the vapour pressures of α-pinene oxidation products, Atmos. Chem. Phys., 6, 1455–1467, https://doi.org/10.5194/acp-6-1455-2006, 2006.
Cappa, C. D.: A model of aerosol evaporation kinetics in a thermodenuder, Atmos. Meas. Tech., 3, 579–592, https://doi.org/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.
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We measured a large suite organic compounds using a recently developed Filter Inlet for Gases and AEROsols (FIGAERO) coupled to a (HR-ToF-CIMS). The instrument was deployed on environmental simulation chambers to study monoterpene oxidation as a secondary organic aerosol (SOA) source. We find that approximately 50% of the detected particle phase mass is associated with compounds having effective vapor pressures 4, or more, orders of magnitude lower than commonly measured products.
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