Anna S, USA [14] North West Province, South Africa [15] China [16]
Mine Type Coal Copper-lead-zinc Copper
pH 2,8-3,6 1,88 2,75
Al Mar-36 -  
Fe Jan-36 98,95 545
Mn 06-Sep - 190
Zn - 7,16  
Sulfate - 4415,51 20800
Lead   2,35  
Copper   3,49 230
Table 3: Physic-chemical characteristics of AMD from various sites worldwide.