Wintertime new particle formation and its contribution to cloud condensation nuclei in the Northeastern United States

Yu, Fangqun; Luo, Gan; Nair, Arshad Arjunan; Schwab, James J.; Sherman, James P.; Zhang, Yanda

doi:https://doi.org/10.5194/acp-20-2591-2020

Articles | Volume 20, issue 4

https://doi.org/10.5194/acp-20-2591-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-2591-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 4

Research article

|

03 Mar 2020

Research article |

| 03 Mar 2020

Wintertime new particle formation and its contribution to cloud condensation nuclei in the Northeastern United States

Fangqun Yu, Gan Luo, Arshad Arjunan Nair, James J. Schwab, James P. Sherman, and Yanda Zhang

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Final revised paper (published on 03 Mar 2020)
Preprint (discussion started on 21 Oct 2019)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review on Yu et al.', Anonymous Referee #1, 06 Nov 2019
- AC1: 'Reply to referee #1', Fangqun Yu, 28 Jan 2020
RC2: 'review', Anonymous Referee #2, 07 Nov 2019
- AC2: 'Reply to referee #2', Fangqun Yu, 28 Jan 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Fangqun Yu on behalf of the Authors (28 Jan 2020) Author's response Manuscript

ED: Publish as is (30 Jan 2020) by Veli-Matti Kerminen

AR by Fangqun Yu on behalf of the Authors (03 Feb 2020)

Short summary

Particle number concentration (PNC) is a key parameter important for the health and climate impacts of atmospheric aerosols. We show that, even during wintertime, regional nucleation occurs and contributes significantly to number concentrations of ultrafine particles and cloud condensation nuclei. Due to low biogenic emissions, wintertime regional nucleation is solely controlled by inorganic species, and ternary ion-mediated nucleation is able to capture the observed variations in PNC.