Cyanide aside, gold and silver mines are the dominant source of atmospheric mercury pollution, as mercury is used to recover small particles from soil and sediments.
read more... https://www.treehugger.com/what-is-ethical-jewelry-6825174
Cyanide aside, gold and silver mines are the dominant source of atmospheric mercury pollution, as mercury is used to recover small particles from soil and sediments.
read more... https://www.treehugger.com/what-is-ethical-jewelry-6825174
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