Thirty-two percent of the emissions are from small-scale gold mining. So that’s the use of mercury to amalgamate with gold while you’re in the field, and to burn that mercury off so you have gold left in the bottom of your pan. That burning of that mercury and that release into the air by 20 or more million people is adding to the mercury emissions into the global pool.
http://www.loe.org/shows/segments.html?programID=13-P13-00004&segmentID=3
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