Weekend effect of air pollutants in small and medium-sized cities: The role of policies stringency to COVID-19 containment.

ABSTRACT: Although the pattern of air pollutants has been extensively studied during the COVID-19 pandemic, the weekend effect has been rarely investigated. In order to understand the impact of policies stringency as well as the interruption-recovery pattern, the aim of the study was to investigate the levels of air pollutants (O₃, NO₂, SO₂, PM_2.5, PM₁₀) and PM_2.5/PM₁₀ ratio before and after the COVID-19 pandemic in four cities in the state of Rio Grande do Sul, Brazil, evaluating the weekend effect at these two scenarios and also identifying how the restriction measures applied locally had an impact on this effect. For this, daily data from two years of monitoring of air pollutants were collected and the weekend effect was

SUBMITTER: Tavella RA 

PROVIDER: S-EPMC9842451 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature