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World Emissions of mercury from small scale gold mining

• Artisanal and Small Scale Gold Mining (ASGM) occurs in at least 70 countries and is growing • As a consequence of poor practices, 650 to 1350 tonnes of mercury per year are released –an average of 1000 tonnes/a • This is roughly 1/3 of all global anthropogenic releases • ASGM is the single largest intentionaluse source of...

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The artisanal and smallscale gold mining (ASGM) district of PortoveloZaruma is the oldest and largest of its kind in Ecuador. Gold mining has occurred in this region since the Incan conquest in the 15th century, scaled up by the Spanish crown in the 16th century and consolidated by the presence of South American Development Company (SADCO) from the beginning of the 20th century....

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