Sudanese environment expert warns for the use of cyanide in gold mining

Cyanide and mercury are used, mostly by traditional small-scale miners, for extracting gold from ore. The processes are controversial because of the highly toxic nature of the chemicals. Large-scale mining operations are using safer alternatives.

Mercury, causing damage to the nervous system at even relatively low levels of exposure, can contaminate the atmosphere and water at a very long distance. Cyanide that prevents the cells of the body from using oxygen, can enter water, soil, or air.

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