Historical Changes in Seasonal Aerosol Acidity in the Po Valley (Italy) as Inferred from Fog Water and Aerosol Measurements.

Environ Sci Technol · 2021 · PMC8173609 · PMID 34000801

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a decreasing trendno p-value reported

4.5 Relationship between Wintertime/Fog-Related pH and Other Seasons Our analysis shows a decreasing trend in aerosol pH based on the fog water chemical composition.

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an increasing trendno p-value reported

The fog water pH is also shown in Figure 3 , which shows an increasing trend at a 99% confidence interval (using least-squares regression).

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