World Estimate Of Mercury Use In ASGM For 2011

1400 tons of mercury used annually by small scale artisanal miners worldwide
http://www.unep.org/hazardoussubstances/Portals/9/Mercury/Documents/INC3/Tech%20session/4.%20Telmer%20INC3%20Nairobi%20ASGM%20Hg%20use%20and%20trends_oct30.pdf