Mining waste

Concentration in leachate (mg/L) (with H₂O)

Sulphate attack after 28 days

Cumulative concentrations of released metals during the whole period of tank leaching test (mg/m²)

Cr

Pb

Cd

% of weignt loss

SO4

As

Ba

CO

Cu

Mo

Ni

Pb

Zn

Gold-mine tailings [13]

0.141

0.0003

<0.00004

0.124

0.0003

<0.00004

0.108

0.0002

<0.00003

Gold-mine tailings [13]

0.153

0.0004

0.00007

0.136

0.0002

0.00006

0.129

0.0003

<0.00005

Copper tailing [5]

~1.15 - 1.3

~1.25 - 1.26

~1.18 - 1.25

~1.18 - 1.35

~1.23 - 1.35

~1.25 - 1.4

~1.25 - 1.42

Waste rock gold mine [14]

<100

<100

<1000

<10

<10

<10

<10

<10

<10

<1000

<100

<100

<10

<10

<10

<10

<10

<10

<1000

<100

<100

<10

<10

<10

<10

<10

<10

Waste rock gold mining [9]

<100

<100

<100

<10

<10

<10

<10

<10

<10

<1000

<100

<100

<10

<10

<10

<10

<10

<10