Much of this excavated material is then released into rivers, where it’s carried downstream as ‘suspended sediment’, which gives water a muddy appearance and can increase disease and mortality in river species. Often, this sediment carries toxins such as mercury, lead, zinc, copper and arsenic.
read more... https://geographical.co.uk/science-environment/artisanal-mining-is-leaving-a-trail-of-devastation
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