Gold mining, an illegal practice in Holguin

"Gold is always found in very small amounts and its extraction becomes complicated. To separate gold fom other minerals dangerous substances are used, such as mercury and sodium cyanide, whose neglectful use near rivers can cause irreparable damages to the ecosystem and human health. Of course, such chemicals do not reach their hands by magic, but they are "managed" through state agencies. "In the case of cyanide death is quick, but poisoning with heavy metals such as mercury tends to lead to a long suffering, such is the case of umans who eat fish contaminated with mercury can be poisoned.
http://amyholguin.blogspot.com/2014/10/gold-mining-illegal-practice-in-holguin.html