Nearly 20 percent of the world’s gold supply is produced by workers in artisanal and small-scale gold mining shops that purify gold by burning off mercury. Researchers have teamed up to stop this mercury where it starts.
Nearly 20 percent of the world’s gold supply is produced by workers in artisanal and small-scale gold mining shops that purify gold by burning off mercury. Researchers have teamed up to stop this mercury where it starts.