Evaluation and Source Apportionment of Potentially Toxic Elements in the Chayuan Reservoir, Guizhou Province Using the Potential Ecological Risk Index (RI) and the PMF Model.

Toxics · 2026 · PMC13120285 · PMID 42043131

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a decreasing trendno p-value reported

The same element also shows differences among sampling sites; for example, As at CY-4 fluctuates with depth, whereas Cu at CY-1 exhibits a decreasing trend.

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