https://pmc.ncbi.nlm.nih.gov/articles/PMC3556620/
Quicksilver & Gold: Mercury Pollution from Artisanal and Small-Scale Gold Mining - PMC
small scale mininggold mercuryquicksilverpollution
https://earthjustice.org/press/2010/u-s-epa-acts-to-control-mercury-from-gold-mines
U.S. EPA Acts to Control Mercury From Gold Mines - Earthjustice
Oct 3, 2022 - But fails to protect public from cyanide and other toxic mine emissions
u s epagold minesacts