Articles | Volume 20, issue 1
Atmos. Chem. Phys., 20, 515–537, 2020
https://doi.org/10.5194/acp-20-515-2020
Atmos. Chem. Phys., 20, 515–537, 2020
https://doi.org/10.5194/acp-20-515-2020

Research article 15 Jan 2020

Research article | 15 Jan 2020

Multi-generation OH oxidation as a source for highly oxygenated organic molecules from aromatics

Olga Garmash et al.

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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Olga Garmash on behalf of the Authors (04 Nov 2019)  Author's response    Manuscript
ED: Publish as is (08 Nov 2019) by Nga Lee Ng

Post-review adjustments

AA: Author's adjustment | EA: Editor approval
AA by Olga Garmash on behalf of the Authors (08 Jan 2020)   Author's adjustment   Manuscript
EA: Adjustments approved (12 Jan 2020) by Nga Lee Ng
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Short summary
Highly oxygenated organic molecules (HOMs) facilitate aerosol formation in the atmosphere. Using NO3 chemical ionization mass spectrometry we investigated HOM composition and yield in oxidation of aromatic compounds at different reactant concentrations, in the presence of NOx and seed aerosol. Higher OH concentrations increased HOM yield, suggesting multiple oxidation steps, and affected HOM composition, potentially explaining in part discrepancies in published secondary organic aerosol yields.
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