The past two decades have seen a sharp increase in illegal and informal gold mining in Peru's southern Amazon region of Madre de Dios. These small-scale operations typically involve cutting down all of the trees in a particular area, digging a large pit and then using mercury to extract gold from the excavated soil.
read more... https://phys.org/news/2019-12-deforestation-erosion-exacerbate-mercury-spikes.html
No comments:
Post a Comment