Analysis Of Selected Trace Metals From Oil Petroleum Products In A Polluted Soil A Case Study Of Offa Local Government Area

The concentrations of heavy metals Fe Cu Cr Pb and Ni in soil samples of filling stations and those of a control area about a kilometer away from the filling stations were investigated by sequential extraction method using Atomic Absorption Spectrometer AAS. Results obtained showed the mean concentrations mgkg of Fe Cu Cr Pb and Ni in soil of studied areas as 18.43 0.01 0.012 0.02 and 0.01 respectively while in controlled area soil are Fe Cu Cr Pb and Ni had concentrations mgkg of 10.376 0.007 0.004 0.005 and 0.0048 respectively. Levels of the heavy metals in soils of both studied areas were observed to be lower than European Union safe limits.