Table 3.

Proposed maximum allowable concentrations (MAC, mg/kg) for selected PTEs in soil given in the literature and concentrations at locations.

Ea	I	II
Fe	–	–
Mn	–	–
Cu	60–150	36
Zn	100–300	140
B	–	50
Ni	20–60	35
Co	20–50	9
As	15–20	29
Cd	1–5	0.8
Crtotal	50–200	100
Hg	0.5–5	0.3
Pb	20–300	85
Al	–	–
V	150	42
Sb	10	3

^aE-toxic elements; I-maximum allowable conc. [27]; II- recommended values from national legislation [39].