Extracting gold from riverbeds, a process known as alluvial mining, often involves the use of mercury to bind the flakes of gold. The process is notorious for causing mercury pollution, and one of the most visible impacts that surveyors found in Napo was the dumping of toxic byproducts and residual rocky materials into the Anzu and Jatunyacu rivers. This has clouded the water and suppressed the aquatic life at some of the sampled sites.
read more... https://news.mongabay.com/2022/03/gold-rush-in-ecuadors-amazon-region-threatens-1500-communities/
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