Timescales of secondary organic aerosols to reach equilibrium  at various temperatures and relative humidities

Li, Ying; Shiraiwa, Manabu

doi:https://doi.org/10.5194/acp-19-5959-2019

Articles | Volume 19, issue 9

https://doi.org/10.5194/acp-19-5959-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-19-5959-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 9

Research article

|

07 May 2019

Research article |

| 07 May 2019

Timescales of secondary organic aerosols to reach equilibrium at various temperatures and relative humidities

Ying Li and Manabu Shiraiwa

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Final revised paper (published on 07 May 2019)
Supplement to the final revised paper
Preprint (discussion started on 05 Feb 2019)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Reviewer comments: Li et al.', Anonymous Referee #1, 07 Mar 2019
- AC1: 'Response to Referee 1', Manabu Shiraiwa, 05 Apr 2019
RC2: 'Review of Li and Shiraiwa “Timescales of Secondary Organic Aerosol to Reach Equilibrium at Various Temperatures and Relative Humidities”', Anonymous Referee #2, 09 Mar 2019
- AC2: 'Response to Referee 2', Manabu Shiraiwa, 05 Apr 2019

Peer-review completion

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

AR by Manabu Shiraiwa on behalf of the Authors (05 Apr 2019) Author's response Manuscript

ED: Publish as is (25 Apr 2019) by David Topping

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Short summary

Timescales for secondary organic aerosols (SOA) to reach equilibrium were estimated under various temperatures and relative humidities. Equilibration timescales in free troposphere can be longer than hours or days, even at moderate or relatively high relative humidities. These results provide critical insights into thermodynamic or kinetic treatments of SOA partitioning for accurate predictions of gas- and particle-phase concentrations of semi-volatile compounds in chemical transport models.