Artisanal and Small-scale Gold Mining (ASGM) that relies on mercury is the primary cause of mercury pollution on a global scale. This method involves using elemental mercury to form an amalgam with gold from the ore. The amalgam is then manually isolated and heated, often using a torch or stove, to evaporate the mercury and leave behind the gold.
read more... https://www.miadonna.com/blogs/news/the-devastating-impact-of-one-gold-engagement-ring
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