Spatial variability of trace gases (NO₂, O₃ and CO) over Indian region during 2020 and 2021 COVID-19 lockdowns.

ABSTRACT: COVID-19 lockdown has given us an opportunity to investigate the pollutant concentrations in response to the restricted anthropogenic activities. The atmospheric concentration levels of nitrogen dioxide (NO₂), carbon monoxide (CO) and ozone (O₃) have been analysed for the periods during the first wave of COVID-19 lockdown in 2020 (25th March-31st May 2020) and during the partial lockdowns due to second wave in 2021 (25th March-15th June 2021) across India. The trace gas measurements from Ozone Monitoring Instrument (OMI) and Atmosphere InfraRed Sounder (AIRS) satellites have been used. An overall decrease in the concentration of O₃ (5-10%) and NO₂ (20-40%) have been observed during the 2020 lockdown when compared with business as usual (BAU) peri

SUBMITTER: Vignesh VG 

PROVIDER: S-EPMC10185963 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature