COVID-19 pandemic: Impacts on the air quality during the partial lockdown in São Paulo state, Brazil.

Sci Total Environ · 2020 · PMC7189200 · PMID 32380370

Europe PMC DOI

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an increasing trendno p-value reported

In the four-week before the partial lockdown, an increase of 12% was calculated in comparison to the same period in 2019, therefore indicating an increasing trend for 2020, and corroborating that the observed reduction in pollutant concentrations were determined by the partial lockdown.

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