Articles | Volume 14, issue 7
Atmos. Meas. Tech., 14, 5001–5013, 2021
https://doi.org/10.5194/amt-14-5001-2021
Atmos. Meas. Tech., 14, 5001–5013, 2021
https://doi.org/10.5194/amt-14-5001-2021

Research article 21 Jul 2021

Research article | 21 Jul 2021

A dual-droplet approach for measuring the hygroscopicity of aqueous aerosol

Jack M. Choczynski 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 amt-2021-108', Anonymous Referee #1, 23 May 2021
    • AC1: 'Reply on RC1', James Davies, 02 Jun 2021
  • RC2: 'Comment on amt-2021-108', Anonymous Referee #2, 31 May 2021
    • AC2: 'Reply on RC2', James Davies, 02 Jun 2021
  • RC3: 'Comment on amt-2021-108', Anonymous Referee #2, 02 Jun 2021
    • AC3: 'Reply on RC3', James Davies, 02 Jun 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by James Davies on behalf of the Authors (22 Jun 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (23 Jun 2021) by Mingjin Tang
AR by James Davies on behalf of the Authors (24 Jun 2021)  Author's response    Manuscript
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Short summary
Relative humidity (RH) and hygroscopicity play an important role in regulating the physical, chemical, and optical properties of aerosol. In this work, we develop a new method to characterize hygroscopicity using particle levitation. We levitate two droplets with an electrodynamic balance and measure their size with light-scattering methods using one droplet as a probe of the RH. We demonstrate highly accurate and precise measurements of the RH and hygroscopic growth of a range of samples.