Mercury contamination from artisanal and small-scale gold mining (ASGM) currently accounts for 37% of the global total, often affecting tropical regions where regulations, if they exist, are often poorly enforced.
read more... https://www.researchgate.net/publication/378681977_The_global_challenge_of_reducing_mercury_contamination_from_artisanal_and_small-scale_gold_mining_ASGM_evaluating_solutions_using_generic_theories_of_change
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