Artisanal and small-scale miners are responsible for producing 20 percent of the world’s gold each year. Due to limited economic opportunities or a lack of awareness about the dangers, many of these artisanal and small-scale mining (ASGM) operations use the highly toxic chemical mercury to extract their gold, making this sector the largest source of mercury pollution in the world.
read more... https://www.unep.org/gef/news-and-stories/video/making-mercury-history-artisanal-and-small-scale-gold-mining
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