A 2012 study confirmed Escobar’s fears: the river next
to her home is contaminated with 9 times the acceptable limit of
cyanide, and 1,000 times the acceptable level of iron. Cyanide is part
of the chemical cocktail used on such mining sites to separate precious
metals from excavated rock, and can run off into land and water.
http://voxxi.com/2014/08/01/el-salvador-gold-mine/
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