Elemental mercury use is also prevalent in gold mining in Sigulu and other areas in Namayingo and Busia districts. Mercury is mixed with gold-containing materials, forming a mercury-gold amalgam which is then heated, vaporising the mercury to obtain the gold.
read more... https://www.monitor.co.ug/uganda/special-reports/gold-mining-threatens-biodiversity-in-lake-victoria-4043186
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