Impacts of partial to complete COVID-19 lockdown on NO₂ and PM_2.5 levels in major urban cities of Europe and USA.

ABSTRACT: SARS CoV-2 (COVID-19) coronavirus has been causing enormous suffering, death, and economic losses worldwide. There are rigorous containment measures on industries, non-essential business, transportation, and citizen mobility to check the spread. The lockdowns may have an advantageous impact on reducing the atmospheric pollutants. This study has analyzed the change in atmospheric pollutants, based on the Sentinel-5Ps and ground-station observed data during partial to complete lockdown period in 2020. Results revealed that the mean tropospheric NO₂ concentration substantially dropped in 2020 due to lockdown against the same period in 2019 by 18-40% over the major urban areas located in Europe (i.e. Madrid, Milan, Paris) and the USA (i.e. New York, Boston, and Springfield). Convers

SUBMITTER: Bar S 

PROVIDER: S-EPMC8189822 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature