Ionic Composition of Particulate Matter across Canada Shows Evidence for Near-Ubiquitous Chloride Activation and Sulfate Neutralization.

ACS Earth Space Chem · 2023 · PMC10026722 · PMID 36960423

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a clear trendno p-value reported

Plotting nitrate concentration against sulfate concentration, as displayed in Figure S20 , shows no clear correlation, but when the nitrate concentration is plotted against the ammonium to sulfate mole ratio for individual days, a clear trend is revealed.

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