Open Access
Table 3
Selected heavy metal content in the bottom sediments of the studied ponds.
| Water bodies | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Freshwater | Subhaline | Hypohaline | |||||||
| Heavy metals | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Ca bioavailable (μg kg−1) | 790.9 | 385.71 | 97.25 | 493.3 | 567.87 | 248.4 | 484.7 | 360.8 | 1445.1 |
| Cd total (μg kg−1) | 813.6 | 385.71 | 97.25 | 510 | 633.77 | 304 | 557.2 | 377.8 | 1472.2 |
| Cu bioavailable (μg kg−1) | 7236 | 1789.8 | 1788.9 | 9385.1 | 12,634 | 20,197 | 12,671 | 21,156 | 12,370 |
| Cu total (μg kg−1) | 23,736 | 2632.8 | 2798.9 | 12,755.1 | 17,604 | 32,547 | 29,871 | 31,956 | 23,670 |
| Pb bioavailable (μg kg−1) | 21,783.3 | 1726.04 | 5947.8 | 44,396 | 41,175.7 | 3715.6 | 19,289.3 | 3068 | 5959 |
| Pb total (μg kg−1) | 29,853.3 | 2966.04 | 6651.8 | 55,046 | 46,385.7 | 11,785.6 | 39,689.3 | 13,268 | 16,059 |
| Zn bioavailable (μg kg−1) | 104,626 | 37,452.6 | 15,278 | 122,282 | 122,495 | 19,447.31 | 65,182.2 | 63,421 | 75,971 |
| Zn total (μg kg−1) | 168,926 | 42,882.6 | 26,478 | 168,982 | 160,695 | 61,547.31 | 131,682.2 | 80,521 | 108,571 |
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