Articles | Volume 11, issue 7
Atmos. Meas. Tech., 11, 4361–4372, 2018
https://doi.org/10.5194/amt-11-4361-2018
Atmos. Meas. Tech., 11, 4361–4372, 2018
https://doi.org/10.5194/amt-11-4361-2018

Research article 24 Jul 2018

Research article | 24 Jul 2018

Determining the link between hygroscopicity and composition for semi-volatile aerosol species

Joel Alroe et al.

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Cited articles

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Bahreini, R., Dunlea, E. J., Matthew, B. M., Simons, C., Docherty, K. S., DeCarlo, P. F., Jimenez, J. L., Brock, C. A., and Middlebrook, A. M.: Design and Operation of a Pressure-Controlled Inlet for Airborne Sampling with an Aerodynamic Aerosol Lens, Aerosol Sci. Technol., 42, 465–471, https://doi.org/10.1080/02786820802178514, 2008.
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This study describes a new volatility-based method to directly examine the composition and corresponding hygroscopic contribution of mixed aerosol components. Measurements of chamber-generated secondary organic aerosol and coastal marine aerosol demonstrated effective separation of both internal and external mixtures. In each case, the findings enabled composition-based models to reliably reproduce observed particle hygroscopicities.