Metals | Mean values of heavy metal content (mg/kg) |
|
| |
| NPA Expressway sample values | Background sample values | Intervention values | Uncontaminated soil values |
Cr | 292.28 ± 7.82 | 1.80 ± 0.20 | 190.4 | 100 |
Pb | 10.00 ± 2.00 | 1.00 ± 0.04 | 312 | 14 |
Zn | 456.00 ± 5.00 | 3.80 ± 0.80 | 257.5 | 75 |
Mn | 111.00 ± 7.00 | 5.00 ± 0.30 | NL | 960 |