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Origins of Leading Sector Technology in South Africa: .

Two Cases of Knowledge Intensification in South Africa's Resource Sector • Cyanide-based gold extraction Use of cyanide to extract non- oxidized gold

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While mining for gold provides a living for millions, it comes at a price - the risk of mercury poisoning, and the destruction of both forest and farmland.

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Mining releases mercury into the air when it is burned off to isolate gold from a chunk of rock or slurry; it also seeps into the soil and rivers from water used in the process and runoff from rainwater, contaminated by materials left behind from mining operations.

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Mercury Use in ASGM . Mercury is used in gold mining to extract gold from ore by forming "amalgam" – a mixture composed of approximately equal parts mercury and gold.2,3 The amalgam is heated, evaporating the mercury from the mixture, leaving the gold.2 This method of gold extraction

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