The researchers from Ghana and the United States of America ,working under a sponsored project by the University of Michigan, Graham Environmental Sustainability Institute, said data gathered from their search indicated that there were currently high concentration of mercury, (a chemical used for gold extraction from rocks) in the soil.
The mercury used for gold extractions sinks into the ground, contaminating water bodies, while the indiscriminate diggings by these small-scale gold miners lead to environmental degradation.
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