Impact of Covid-19 lockdown on PM10, SO2 and NO2 concentrations in Salé City (Morocco).

Sci Total Environ · 2020 · PMC7235599 · PMID 32445829

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a definite trendno p-value reported

The low SO 2 concentrations recorded in the full study period (4.75 μg/m 3 on average) do not allow evidencing a definite trend.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.

Impact of Covid-19 lockdown on PM<sub>10</sub>, SO<sub>2</sub> and NO<sub>2</sub> concentrations in Salé City (Morocco).

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