Impact of lockdown during the COVID-19 outbreak on multi-scale air quality.

ABSTRACT: One of the multi-facet impacts of lockdowns during the unprecedented COVID-19 pandemic was restricted economic and transport activities. This has resulted in the reduction of air pollution concentrations observed globally. This study is aimed at examining the concentration changes in air pollutants (i.e., carbon monoxide (CO), nitrogen dioxide (NO₂), sulfur dioxide (SO₂), ozone (O₃), and particulate matters (PM_2.5 and PM₁₀) during the period March-April 2020. Data from both satellite observations (for NO₂) and ground-based measurements (for all other pollutants) were utilized to analyze the changes when compared against the same months between 2015 and 2019. Globally, space borne NO₂ column observations observed b

SUBMITTER: Bray CD 

PROVIDER: S-EPMC8018787 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature