We are committed to sand and gravel crushing, industrial grinding, ore processing and green building materials, and provide intelligent solutions and mature supporting products.
Jan 03, 2018 The Mercury Problem in Artisanal Gold Mining. Mercury-based artisanal and small-scale gold mining (ASGM) causes mercury pollution than any other human activity. 1 In this practice, mercury metal is used to extract gold from ore as a stable amalgam. The amalgam is then heated to evaporate the mercury and isolate the gold.