Articles | Volume 22, issue 19
Research article
10 Oct 2022
Research article |  | 10 Oct 2022

Changing ozone sensitivity in the South Coast Air Basin during the COVID-19 period

Jason R. Schroeder, Chenxia Cai, Jin Xu, David Ridley, Jin Lu, Nancy Bui, Fang Yan, and Jeremy Avise


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2022-178', Anonymous Referee #1, 30 Apr 2022
    • AC1: 'Reply on RC1', Jason Schroeder, 01 Jul 2022
  • RC2: 'Comment on acp-2022-178', Anonymous Referee #2, 18 May 2022
    • AC2: 'Reply on RC2', Jason Schroeder, 01 Jul 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Jason Schroeder on behalf of the Authors (27 Jul 2022)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (31 Jul 2022) by Tao Wang
RR by Anonymous Referee #2 (10 Aug 2022)
ED: Publish as is (11 Aug 2022) by Tao Wang
Short summary
Ozone, a key component of smog, has plagued the Los Angeles (LA) region for decades. Ozone is created by complex chemical reactions that can be greatly impacted by anthropogenic emissions. This study makes use of the COVID-19 period to study the sensitivity of ozone chemistry in LA to certain anthropogenic emissions, notably from vehicles. We find that vehicular emissions of key pollutants dropped by up to 25 % during COVID-19, which caused a fundamental shift in ozone chemistry in the region.
Final-revised paper