Table 4 Toxic metals present in GOTs and GPC.
Elements | USEPA limit | Concentrations of heavy metals in GOTs (mg/L) | Concentrations of heavy metals in GPC (mg/L) |
|---|---|---|---|
As | 5 | 2204.56 | 104.86 |
Pb | 5 | 4.24 | 0.00 |
Cd | 1 | 4.54 | 0.00 |
Cr | 5 | 5.82 | 0.00 |
Fe | - | 30.05 | 0.01 |
Hg | 0.2 | 15.09 | -5.59 |
Zn | - | 115.82 | 0.01 |
CN− | - | 2.36 | 0.00 |
