Articles | Volume 21, issue 12
Atmos. Chem. Phys., 21, 9681–9704, 2021
https://doi.org/10.5194/acp-21-9681-2021

Special issue: Simulation chambers as tools in atmospheric research (AMT/ACP/GMD...

Atmos. Chem. Phys., 21, 9681–9704, 2021
https://doi.org/10.5194/acp-21-9681-2021

Research article 29 Jun 2021

Research article | 29 Jun 2021

Highly oxygenated organic molecule (HOM) formation in the isoprene oxidation by NO3 radical

Defeng Zhao et al.

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Defeng Zhao on behalf of the Authors (26 Apr 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to minor revisions (review by editor) (04 May 2021) by Nga Lee Ng
AR by Defeng Zhao on behalf of the Authors (13 May 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (18 May 2021) by Nga Lee Ng

Post-review adjustments

AA: Author's adjustment | EA: Editor approval
AA by Defeng Zhao on behalf of the Authors (23 Jun 2021)   Author's adjustment   Manuscript
EA: Adjustments approved (23 Jun 2021) by Nga Lee Ng
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Short summary
The reaction of isoprene, a biogenic volatile organic compound with the globally largest emission rates, with NO3, an nighttime oxidant influenced heavily by anthropogenic emissions, forms a large number of highly oxygenated organic molecules (HOM). These HOM are formed via one or multiple oxidation steps, followed by autoxidation. Their total yield is much higher than that in the daytime oxidation of isoprene. They may play an important role in nighttime organic aerosol formation and growth.
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