Nearly a third of the world’s gold production comes from more than 15 million small scale miners, including one million child laborers. The mercury problem affects many developing countries in Latin America, Africa and Asia. In many countries, small-scale mining is an important driver of economic development, but one that brings unacceptable health and environmental consequences.
Experts from MercuryWatch estimate that small-scale mining releases at least 1,400 tons of mercury into the environment every year. For every kilogram of gold mined, at least three kilograms of mercury are released into the ecosystem.
http://throughthesandglass.typepad.com/through_the_sandglass/2012/04/todays-mad-hatters-the-toxic-price-of-gold.html
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