Table 2 Normal contents, threshold and intervention threshold values for heavy metals in Romanian legislation (mgkg -1 )
Soil samples under | Fe | Mn | Zn | Cu | Ni | Cd | Pb |
|---|---|---|---|---|---|---|---|
Normal contents (NC) | - | 900 | 100 | 20 | 20 | 1 | 20 |
Alert threshold values (ATV) | - | 1500 | 300 | 100 | 75 | 3 | 50 |
Intervention threshold values (ITV) | - | 2500 | 600 | 200 | 150 | 5 | 100 |