Articles | Volume 21, issue 24
Research article
17 Dec 2021
Research article |  | 17 Dec 2021

Impact of the COVID-19 pandemic related to lockdown measures on tropospheric NO2 columns over Île-de-France

Andrea Pazmiño, Matthias Beekmann, Florence Goutail, Dmitry Ionov, Ariane Bazureau, Manuel Nunes-Pinharanda, Alain Hauchecorne, and Sophie Godin-Beekmann


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2021-456', Anonymous Referee #1, 26 Jul 2021
  • RC2: 'Comment on acp-2021-456', Anonymous Referee #2, 12 Aug 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Andrea Pazmino on behalf of the Authors (06 Oct 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (07 Oct 2021) by Eduardo Landulfo
RR by Anonymous Referee #2 (22 Oct 2021)
RR by Anonymous Referee #1 (26 Oct 2021)
ED: Publish as is (26 Oct 2021) by Eduardo Landulfo
Short summary
UV-Visible Système d'Analyse par Observations Zénithales (SAOZ) NO2 tropospheric columns were evaluated to quantify the impact of the lockdown in limiting the COVID-19 propagation. Meteorological conditions and NO2 trends were considered. The negative anomaly in tropospheric columns in 2020, attributed to the lockdown (17 March–10 May and related emissions reductions), was 56 % at Paris and 46 % at a suburban site. A similar anomaly was found in the Airparif data of surface concentrations.
Final-revised paper