Research Article
Trace Metal Contamination Characteristics and Health Risks Assessment of Commelina africana L. and Psammitic Sandflats in the Niger Delta, Nigeria
Table 3
Pollution indicators for trace metals in sandflats from Douglas Creek.
| Pollution indices | | Sample sites | DC-V | DC-W | DC-X | DC-Y | DC-Z |
| Cf | Zn | 0.77 | 0.78 | 0.82 | 0.80 | 0.75 | Pb | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | Cd | 2.34 | 2.33 | 2.31 | 2.67 | 3.00 | Ni | 0.03 | 0.03 | 0.04 | 0.03 | 0.04 | Cr | 0.09 | 0.08 | 0.07 | 0.09 | 0.07 |
| | Zn | 0.512 | 0.520 | 0.546 | 0.535 | 0.508 | Pb | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | Cd | 1.558 | 1.556 | 1.544 | 1.778 | 2.000 | Ni | 0.017 | 0.021 | 0.025 | 0.023 | 0.025 | Cr | 0.059 | 0.059 | 0.051 | 0.060 | 0.045 |
| Cd | | 3.219 | 3.234 | 3.251 | 3.595 | 3.859 | mCD | | 0.644 | 0.647 | 0.650 | 0.719 | 0.772 |
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