Environmental Impacts of Mining and Smelting. 20191015 Environmental Impacts of Mining and Smelting. Artisanal gold mining employs an estimated 1015 million miners in more than 55 countries. 7 Estimates are that these small operations produce about 20 of the worlds gold supply. health and environmental concerns with economic development.
Learn More 40 years of industry experience providing one-stop solutionEnvironmental Impacts of Mining and Smelting. 20191015 Environmental Impacts of Mining and Smelting. Artisanal gold mining employs an estimated 1015 million miners in more than 55 countries. 7 Estimates are that these small operations produce about 20 of the worlds gold supply. health and environmental concerns with economic development.
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