Comparison of Gold Yield with Traditional Amalgamation and Direct Smelting in Artisanal Small-Scale Gold Mining in Uganda.

Background: The amalgamation method used by artisanal small-scale miners is the single largest source of global mercury emission. The goal of the 'Free Your Mine' project is to stop mercury use in artisanal and small-scale mining.

Objectives: The aim of the present study was to compare gold recovery and time consumption between the amalgamation method and direct smelting, using borax for smelting under standardized conditions.