Table 4.
Chemical analysis of heavy metal from the Sunder industrial effluents.
| Heavy metal levels (mg L−1) | Sampling sites | ||||
|---|---|---|---|---|---|
| Textile industry (S1) | Tannery industry (S2) | Chemical industry-I (S3) | Chemical industry-II (S4) | Overall mean ± S.D | |
| Fe | 70 .54 ± 0.03a | 45.64 ± 0.06c | 52.99 ± 0.08b | 26.32 ± 0.03d | 90.52 ± 32.08 |
| Cr | 17.41 ± 0.1c | 53.12 ± 1.0a | 39.95 ± 1.50b | 12.30 ± 0.1d | 65.81 ± 40.01 |
| Pb | 10.07 ± 1.00bc | 8.05 ± 0.02d | 15.02 ± 1.0a | 9.09 ± 0.01cd | 21.28 ± 6.85 |
| Cd | 10.49 ± 1.0cd | 12.23 ± 1.00b | 17.0 ± 0.05a | 10.25 ± 1.0d | 25.65 ± 6.60 |
| Ni | 0.86 ± 0.01a | 0.14 ± 0.01c | 0.03 ± 0.03d | 0.36 ± 0.02b | 0.74 ± 0.80 |
| Hg | 10.05 ± 0.03ab | 9.23 ± 0.07b | 4.56 ± 0.01cd | 3.28 ± 0.02d | 6.78 ± 3.36 |
| Cu | 1.83 ± 1.0a | 0.02 ± 0.01d | 0.79 ± 0.01c | 0.89 ± 0.01bc | 1.45 ± 1.22 |
| As | 3.61 ± 0.10ab | 2.12 ± 1.0b | 0.16 ± 0.04d | 0.57 ± 0.02c | 2.57 ± 2.60 |
| Zn | 31.62 ± 1.0c | 32.97 ± 10bc | 26.09 ± 1.0d | 35.21 ± 10ab | 62.90 ± 8.63 |
| Na | 25.42 ± 0.10a | 14.41 ± 1.0cd | 12.37 ± 0.01d | 22.25 ± 1.0b | 34.96 ± 11.44 |
| Mn | 110.06 ± 0.01b | 32.34 ± 2.26d | 59.12 ± 1.0c | 119.13 ± 1.0a | 147.36 ± 80.91 |
| K | 57.25 ± 2.0a | 42.78 ± 1.50b | 33.06 ± 1.2c | 28.41 ± 1.0d | 83.19 ± 27.16 |
| Co | 3.55 ± 0.07ab | 3.17 ± 0.03b | 2.89 ± 1.0c | 1.12 ± 0.10d | 5.89 ± 1.41 |
Means with different letters in a single row are statistically non-significant at p < 0.05.