Different approaches to explore the impact of COVID-19 lockdowns on carbonaceous aerosols at a European rural background site.

Sci Total Environ · 2023 · PMC10229439 · PMID 37268131

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a decreasing trendno p-value reported

Unlike aerosol particles, NO x , NO 2 , and SO 2 showed their highest levels in 2017 and a decreasing trend during the following years, with concentrations 32 % lower in 2020 compared to the pre-COVID period ( Fig. 6 f).

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