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  • Origin and consumption of mercury in smallscale gold mining

     · The gold production from artisanal and smallscale mining (ASM) in Tanzania is not well established, but Ikingura [7] estimated that the ASM produced around 4 tonne Au/annum. In 1999, van Straaten [8] estimated 200,000–300,000 artisanal gold miners in Tanzania, while D'Souza and Cliffe [9] estimated 550,000 ASM.

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  • A golden opportunity: Artisanal and smallscale gold mining .

     · Download Now. In Zimbabwe, it is estimated that artisanal and smallscale mining (ASM) provides a direct livelihood for more than one million people—critical in a country grappling with high unemployment. Consensus is growing among key ASM stakeholders that the government's policy shift toward increasing economic emphasis on ASM gold ...

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  • Tanzania's Children and the Toxic Lure of Gold

     · Like Farida's family, most smallscale miners use mercury to process the gold. Mercury is released into the atmosphere and nearby water sources, contaminating the environment and poisoning mining...

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  • CongoKinshasa: SmallScale Gold Miners in DRC Challenge the .

    In the late 2000s, artisanal and small scale gold miners in Kamituga noticed a decrease in the quality of the extracted ore. In response, in November 2011, a Congolese trader brought three ball...

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  • NBI takes down ball mill machines | The Manila Times

     · Meanwhile, the smallscale miners appealed for humanitarian consideration to process their stockpiles before leaving the area, but without their ball mills, they said, it would be impossible to do it for two months. "Our ascendants have been here since time immemorial mining for their livelihood. We took over to continue because this is the ...

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