Articles | Volume 16, issue 17
Atmos. Chem. Phys., 16, 11001–11018, 2016
https://doi.org/10.5194/acp-16-11001-2016
Atmos. Chem. Phys., 16, 11001–11018, 2016
https://doi.org/10.5194/acp-16-11001-2016

Research article 06 Sep 2016

Research article | 06 Sep 2016

Chemical characterization of organosulfates in secondary organic aerosol derived from the photooxidation of alkanes

Matthieu Riva et al.

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Short summary
Formation of organosulfates (OSs) in secondary organic aerosol from the photooxidation of alkanes is reported from smog chamber experiments. Effects of acidity and relative humidity on OS formation were examined. Most of the OSs identified could be explained by formation of gaseous epoxide and/or hydroperoxide precursors with subsequent acid-catalyzed multiphase chemistry onto sulfate aerosol. The OSs identified here were also observed and quantified in aerosols collected in two urban areas.
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