Table 7.
Masses of heavy metals accumulated in pond/ditch sediments, plant bed soils and plants
| Structural unit | Type | Area/m 2 | Cd/g | Cr/g | Cu/g | Ni/g | Zn/g | Pb/g | Sum/g | Percentage |
|---|---|---|---|---|---|---|---|---|---|---|
| Pond | Sediment | 3615.43 | 20.19 | 9671.14 | 2412.70 | 3948.40 | 7237.27 | 3408.46 | 26698.15 | 30.98% |
| Ditch | Sediment | 3554.16 | 20.68 | 10153.41 | 2370.52 | 3995.47 | 8133.73 | 3182.92 | 27856.72 | 32.32% |
| Plant bed | Soil | 1740.14 | 17.26 | 12810.70 | 2917.46 | 5144.17 | 7878.62 | 2832.86 | 31601.07 | 36.67% |
| First part | Plant | 735.40 | 0.07 | 1.65 | 3.20 | 0.97 | 5.58 | 0.72 | 12.19 | 0.01% |
| Second part | Plant | 1004.74 | 0.03 | 2.46 | 3.89 | 1.50 | 7.70 | 0.68 | 16.26 | 0.02% |
| Total | 58.22 | 32639.36 | 7707.76 | 13090.50 | 23262.91 | 9425.64 | 86184.39 | 100.00% |