Articles | Volume 21, issue 18
Atmos. Chem. Phys., 21, 14275–14291, 2021
https://doi.org/10.5194/acp-21-14275-2021
Atmos. Chem. Phys., 21, 14275–14291, 2021
https://doi.org/10.5194/acp-21-14275-2021

ACP Letters 27 Sep 2021

ACP Letters | 27 Sep 2021

The driving factors of new particle formation and growth in the polluted boundary layer

Mao Xiao et al.

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2020-1323', Anonymous Referee #1, 19 Feb 2021
  • RC2: 'Comment on acp-2020-1323', Anonymous Referee #2, 19 Mar 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Mao Xiao on behalf of the Authors (21 Jun 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to technical corrections (11 Jul 2021) by Thomas Koop
ED: Publish as is (11 Jul 2021) by Barbara Ervens(Executive Editor)
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Short summary
Experiments at CLOUD show that in polluted environments new particle formation (NPF) is largely driven by the formation of sulfuric acid–base clusters, stabilized by amines, high ammonia concentrations or lower temperatures. While oxidation products of aromatics can nucleate, they play a minor role in urban NPF. Our experiments span 4 orders of magnitude variation of observed NPF rates in ambient conditions. We provide a framework based on NPF and growth rates to interpret ambient observations.
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