The Atmospheric Environment Effects of the COVID-19 Pandemic: A Metrological Study.

Int J Environ Res Public Health · 2022 · PMC9518114 · PMID 36078825

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an increasing trendno p-value reported

In general, the concentrations of the environmental pollutants PM 2.5 , PM 10 , CO 2 , CO, SO 2 , and NO 2 all declined to various degrees, while the concentration of O 3 showed an increasing trend.

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