Threats

Threats

Threats During the exploration and mining process, harmful substances are released into the environment. Heavy metals – Mercury, uranium, tin, cadmium, arsenic, copper, zinc, nickel. Chemicals – Cyanides, Sulfuric acid, Hydrofluoric acid, Chlorine compounds. Dust and gas pollutants – Fine particulate matter, Sulfur oxides, Nitrogen oxides, Methane, Carbon monoxide. Acid drainage of mines – Sulfide minerals (pyrite)