Assessment of variations in air quality in cities of Ecuador in relation to the lockdown due to the COVID-19 pandemic.

ABSTRACT: This study analyzes the effect of lockdown due to COVID-19 on the spatiotemporal variability of ozone (O₃), sulfur dioxide (SO₂), and nitrogen dioxide (NO₂) concentrations in different provinces of continental Ecuador using satellite information from Sentinel - 5P. The statistical analysis includes data from 2018 to March 2021 and was performed based on three periods defined a priori: before, during, and after lockdown due to COVID-19, focusing on the provinces with the highest concentrations of the studied gases (hotspots). The results showed a significant decrease in NO₂ concentrations during the COVID-19 lockdown period in all the study areas: the Metropolitan District of Quito (DMQ) and the provinces of Guayas and Santo Domingo de los Tsáchil

SUBMITTER: Atiaga O 

PROVIDER: S-EPMC10361106 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature