Table 2.
Physico-chemical characterization of tannery polluted Kasur (K) and Sialkot (S) soils.
| Parameters | Unit | K Soil | S Soil |
|---|---|---|---|
| Organic carbon (OC) | g kg−1 | 3.41 ± 0.52 | 4.16 ± 0.64 |
| Calcium carbonate (CaCO3) | % | 2.96 ± 0.54 | 3.23 ± 0.49 |
| Soil texture | - | Silty loam | Silty clay loam |
| pH | - | 7.75 ± 0.81 | 7.91 ± 0.89 |
| Electrical conductivity (EC) | dS m−1 | 1.469 ± 0.02 | 1.969 ± 0.01 |
| Cation exchange capacity (CEC) | cmolc kg−1 | 11.56 ± 1.38 | 15.72 ± 1.42 |
| Total nitrogen (N) | % | 0.054 ± 0.01 | 0.061 ± 0.01 |
| Available phosphorus (P) | mg kg−1 | 5.46 ± 0.67 | 7.53 ± 0.82 |
| Extractable potassium (K) | mg kg−1 | 94.0 ± 3.38 | 112.0 ± 4.31 |
| Cr (VI) | mg kg−1 | 12.45 ± 1.02 | 18.62 ± 1.29 |
| Cr (III) | mg kg−1 | 40.02 ± 2.03 | 54.94 ± 2.30 |
| Total Cr | mg kg−1 | 52.47 ± 2.14 | 73.56 ± 2.43 |
The values are mean ± S.E. (n = 3); K: Kasur soil; S: Sialkot soil.