Published on: 2025-08-04 16:00:58
Mining is the main anthropogenic cause of heavy metal soil contamination. The image shows an aerial view of the Aznalcóllar mine, photographed in 2017. The first 30 centimeters of soil are the foundation of life. This foot-deep slice of the pedosphere is the vital space for most plant roots. When roots go deeper, it’s to anchor the plant, not to nourish it. Within this narrow band, bacteria, fungi, nematodes, and countless other microscopic organisms form the so-called biological crust, which i
Keywords: concentrations human metals natural soil
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