Urban air quality changes resulting from the lockdown period due to the COVID-19 pandemic.

Int J Environ Sci Technol (Tehran) · 2023 · PMC9391654 · PMID 36035638

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a decreasing trendno p-value reported

Geospatial analysis Broadly, while a decreasing trend for researched pollutants over the quarantine period has been revealed, except for ozone, it is pertinent to assess the spatial gradient across researched Madrid city’s surface regarding pollution distribution information.

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