Articles | Volume 21, issue 10
Atmos. Chem. Phys., 21, 7723–7748, 2021
https://doi.org/10.5194/acp-21-7723-2021

Special issue: Satellite and ground-based remote sensing of aerosol optical,...

Atmos. Chem. Phys., 21, 7723–7748, 2021
https://doi.org/10.5194/acp-21-7723-2021

Research article 20 May 2021

Research article | 20 May 2021

Variability of NO2 concentrations over China and effect on air quality derived from satellite and ground-based observations

Cheng Fan et al.

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Cheng Fan on behalf of the Authors (01 Feb 2021)  Author's response    Author's tracked changes
ED: Referee Nomination & Report Request started (02 Feb 2021) by Stefania Gilardoni
RR by Anonymous Referee #1 (18 Feb 2021)
RR by Anonymous Referee #2 (02 Mar 2021)
ED: Reconsider after major revisions (03 Mar 2021) by Stefania Gilardoni
AR by Cheng Fan on behalf of the Authors (11 Mar 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to technical corrections (23 Mar 2021) by Stefania Gilardoni
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Short summary
Emission control policy in China has resulted in the decrease of nitrogen dioxide concentrations, which however leveled off and stabilized in recent years, as shown from satellite data. The effects of the further emission reduction during the COVID-19 lockdown in 2020 resulted in an initial improvement of air quality, which, however, was offset by chemical and meteorological effects. The study shows the regional dependence over east China, and results have a wider application than China only.
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