Table 4.
Concentrations of extractable petroleum hydrocarbons (EPHs) and polycyclic aromatic hydrocarbons (PAHs) in biota
| Scientific name | Nigerian name | N | EPH (mg kg−1) | Max value | Min value | Std dev | PAH (μg kg−1) | Max value | Min value | Std dev |
|---|---|---|---|---|---|---|---|---|---|---|
| Anadara senilis | Blood cockle | 12 | 32.8 | 67.7 | 0.0 | 33.7 | 11.9 | 62.0 | 0.0 | 21.9 |
| Chrysichthys nigrodigitatus | Catfish | 1 | 3.0 | 3.0 | 3.0 | – | 15.0 | 15.0 | 15.0 | – |
| Crassostrea gasar | Mangrove oyster | 9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Mugil cephalus | Mullet | 2 | 3.3 | 3.3 | 3.3 | 0.0 | 8.7 | 10.0 | 7.3 | 1.9 |
| Periophthalmus barbarus | Mudskipper | 7 | 18.6 | 65.0 | 0.0 | 31.7 | 3.7 | 13.0 | 0.0 | 6.3 |
| Pseudotolithus sp. | Croaker | 1 | 3.0 | 3.0 | 3.0 | – | 14.0 | 14.0 | 14.0 | – |
| Sphyraena sp. | Barracuda | 2 | 3.8 | 4.2 | 3.3 | 0.6 | 6.6 | 7.6 | 5.6 | 1.4 |
| Tilapia guineensis | Tilapia | 2 | 15.4 | 28.1 | 2.7 | 17.9 | 9.6 | 6.1 | 13.0 | 4.9 |
| Tympanotonus fuscatus | Periwinkle | 1 | 8.3 | 8.3 | 8.3 | – | 35.0 | – | – | – |