How mobility restrictions policy and atmospheric conditions impacted air quality in the State of Sao Paulo during the COVID-19 outbreak.

ABSTRACT: Mobility restrictions are among actions to prevent the spread of the COVID-19 pandemic and have been pointed as reasons for improving air quality, especially in large cities. However, it is crucial to assess the impact of atmospheric conditions on air quality and air pollutant dispersion in the face of the potential variability of all sources. In this study, the impact of mobility restrictions on the air quality was analyzed for the most populous Brazilian State, São Paulo, severely impacted by COVID-19. Ground-based air quality data (PM₁₀, PM_2.5, CO, SO₂, NO_x, NO₂, NO, and O₃) were used from 50 automatic air quality monitoring stations to evaluate the changes in concentrations before (January 01 - March 25) and during the p

SUBMITTER: Rudke AP 

PROVIDER: S-EPMC8547779 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature