Spatial Distribution of Mercury and Arsenic Levels in ...
13/06/2014 · Artisanal mining is increasing in many parts of the world with more than 30 million active artisanal miners in more than 55 countries (GEUS 2000; ILO 1999).An estimated – million people in Tanzania rely on informal mining activities for their livelihoods (Jønsson and Bryceson 2009).Artisanal and small scale gold mining (ASGM) activities are rising in many areas of Tanzania, including ...