Articles | Volume 17, issue 12
https://doi.org/10.5194/acp-17-7593-2017
https://doi.org/10.5194/acp-17-7593-2017
Research article
 | 
22 Jun 2017
Research article |  | 22 Jun 2017

Particle size dependence of biogenic secondary organic aerosol molecular composition

Peijun Tu and Murray V. Johnston

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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

Barsanti, K. C. and Pankow, J. F.: Thermodynamics of the formation of atmospheric organic particulate matter by accretion reactions – 2. Dialdehydes, methylglyoxal, and diketones, Atmos. Environ., 39, 6597–6607, https://doi.org/10.1016/j.atmosenv.2005.07.056, 2005.
Barsanti, K. C. and Pankow, J. F.: Thermodynamics of the formation of atmospheric organic particulate matter by accretion reactions – Part 3: Carboxylic and dicarboxylic acids, Atmos. Environ., 40, 6676–6686, https://doi.org/10.1016/j.atmosenv.2006.03.013, 2006.
Bzdek, B. R., Pennington, M. R., and Johnston, M. V.: Single particle chemical analysis of ambient ultrafine aerosol: A review, J. Aerosol Sci., 52, 109–120, https://doi.org/10.1016/j.jaerosci.2012.05.001, 2012.
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Short summary
In this study, we determined the particle-size-dependent molecular composition of secondary organic aerosol (SOA) that was produced from β-pinene, an important biogenic precursor. We find that the composition changes significantly with particle size, and these changes can be linked to changes in the chemical processes that contribute to particle growth. Measurements of this type can aid the modeling and prediction of SOA formation.
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