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Changes in Metal Solubility in PM<sub>2.5</sub> in Xi'an City Under Clean Heating Policies: Effects of Emission Source and Aerosol Acidity.

Toxics · 2026 · PMC12945187 · PMID 41745842

Europe PMCDOI
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an increasing trendno p-value reported
Consistent with previous studies [ 46 ], an increasing trend in aerosol pH was also observed during the COVID-19 period.

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