Mercury from small-scale goldmining and from coal-fired power stations represent the biggest source of
mercury pollution worldwide. Miners inhale mercury during smelting, and mercury run-off into rivers
and streams contaminates fish, the food chain and people downstream. Although Mongolia banned mercury
use in small-scale mining in 2008, many sites have been contaminated by mercury, because of illegal activities
of artisanal mining.
Improper use of mercury led to environmental pollution and caused serious health problems
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