Metals |
Observed concentration |
Certified value |
|
Sediment without Cu- MBDTC |
Sediment with Cu- MBDTC |
|
Nickel (Ni) |
17.2 ± 0.41 |
19.8 ± 0.7 |
23 |
Chromium (Cr) |
24.7 ± 0.1 |
27.9 ± 0.5 |
30 |
Cobalt (Co) |
9.07 ± 0.34 |
14.5 ± 0.21 |
11 |
Manganese (Mn) |
917 ± 4 |
981 ± 11 |
1200 |
Lead (Pb) |
11.3 ± 0.5 |
12.2 ± 1.3 |
13 |
|