Spatial Distribution, Potential Risks and Sources of Polycyclic Aromatic Hydrocarbons in Sediments of Oleri River, Delta State, Nigeria
The spatial distribution, associated risks and sources of polycyclic aromatic hydrocarbons in sediment of the Oleri River in Delta State were examined in this study. Six sediments were obtained from six locations in the Oleri River and analyzed for the 16 priority PAHs using gas chromatograph coupled with mass spectrometry after extraction with dichloromethane and hexane. The levels of the ∑16-PAHs in the sediment ranged from 73.0-423 µg/kg. The higher molecular weight PAHs were the dominant PAHs in the sediments.