How does mining contribute to soil pollution?

Strip mining of copper produces 100-10,000 mg/kg cadmium and lead.

Iron pyrites have a devastating effet of aquatic life.

Gold mining produces residual levels of CN complexes. even single ring of gold generates 20 tonnes of mining waste.Smelting and refining processes can melt metals and metalic compounds to melt. Lot of waste generated. besides, Large amount of water is taken from rivers .