Study finds arsenic contamination from Giant gold mine wiped out key algae and invertebrates from lake near Yellowknife

Posted on Tuesday, August 23, 2016

A study led by researchers at the University of Ottawa and published today in Proceedings of the Royal Society B has found that a lake ecosystem was severely affected by arsenic contamination from the Giant Mine, which produced over seven million ounces of gold while it was active, between 1948 and 2004.  Over 20,000 tonnes of toxic arsenic trioxide were released from the Giant Mine’s roaster stack over the years as part of its process to extract gold from arsenopyrite ore. Read the complete article

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