Articles | Volume 20, issue 22
Atmos. Chem. Phys., 20, 14393–14405, 2020
https://doi.org/10.5194/acp-20-14393-2020
Atmos. Chem. Phys., 20, 14393–14405, 2020
https://doi.org/10.5194/acp-20-14393-2020

Research article 27 Nov 2020

Research article | 27 Nov 2020

Direct contribution of ammonia to α-pinene secondary organic aerosol formation

Liqing Hao et al.

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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 Anna Wenzel on behalf of the Authors (24 Aug 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (25 Aug 2020) by Hang Su
RR by Anonymous Referee #2 (07 Sep 2020)
RR by Anonymous Referee #3 (23 Sep 2020)
ED: Publish subject to minor revisions (review by editor) (24 Sep 2020) by Hang Su
AR by Liqing Hao on behalf of the Authors (16 Oct 2020)  Author's response    Manuscript
ED: Publish as is (19 Oct 2020) by Hang Su
AR by Liqing Hao on behalf of the Authors (20 Oct 2020)  Author's response    Manuscript
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Short summary
Our work presents the observational results of secondary organic aerosol (SOA) formation in the presence of ammonia. The particle-phase ammonium was continuously produced even after SOA formation had ceased. The gas-phase organic acids were observed to contribute to the formed particle-phase ammonium salts. This study suggests that the presence of ammonia may change the mass and chemical composition of large-size SOA particles and can potentially alter the aerosol impact on climate change.
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