Table 2.
Rate of heavy metals uptake and elimination in vetiver (C. zizanoides L.).
| Samples | Rate of uptake (mg/kg/day) | Rate of elimination (mg/kg/day) | ||||
|---|---|---|---|---|---|---|
| 4 | 14 | 28 | 4 | 14 | 28 | |
| Cr-A | 1.81 | 0.79 | 1.32 | − 10.17 | − 0.41 | 1.09 |
| Cr-B | 5.61 | 8.33 | 20.38 | − 199.86 | − 33.23 | − 5.62 |
| Cr-C | 77.06 | 127.21 | 64.90 | − 728.05 | − 221.45 | − 115.87 |
| Ni-A | 0.97 | 0.60 | 0.55 | − 2.43 | − 0.12 | 0.04 |
| Ni–B | 3.64 | 5.17 | 3.48 | 12.24 | 3.84 | 2.30 |
| Ni-C | 15.60 | 11.63 | 10.57 | − 21.76 | − 14.61 | 6.85 |
Information: A (Low concentration); B (Medium concentration); C (High concentration).