Pollution Characteristics and Spatial Distribution of Heavy Metals in Coal-Bearing Sandstone Soil: A Case Study of Coal Mine Area in Southwest China.

Int J Environ Res Public Health · 2022 · PMC9180046 · PMID 35682077

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a decreasing trendno p-value reported

In this study, the surface–bottom soil pH showed a decreasing trend (from 9.05 to 8.54), which led to more Cr being adsorbed on the clay in a deeper position than on the surface.

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