Use of mercury in gold mining stirs controversy in Brazil

Posted by SciDev.Net: Catarina Chagas on August 1st, 2012
SciDev.Net: Scientists in Brazil have expressed concern that new regulations in the country's Amazonas state continue to permit the use of mercury in gold mining, and have put forward what they say are more environmentally-friendly alternatives. Mercury is used mainly in small-scale 'artisanal' mining, using amalgamation processes that extract gold from other minerals by binding it to the mercury, and then burning off the mercury. This activity is increasing in developing countries across Latin America......

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