Elements

Concentration in anthill soil (mg/kg)

WHO permissible limits in drinking water (mg/l)

Na

396.3 ± 42.2

200

Fe

201.7 ± 82.8

0.3

Ca

109.3 ± 15.2

75

Mg

80.5 ± 24.0

50

Cr

12.6 ± 1.2

0.05

Ni

7.1 ± 0.3

0.07

B

3.9 ± 1.3

2.4

Zn

3.5 ± 1.4

3

Mn

1.8 ± 0.8

0.4

Cu

1.3 ± 0.1

2

Pb

1.3 ± 0.2

0.01

Ag

1.2 ± 1.7

0.1

Au

0.2 ± 0.035

-

Se

Nd

0.02

V

Nd

-