The After Effect of Crude Oil Spillage on Some Associated Heavy Metals in the Soil

Crude oil spillage is one major means of environmental pollution in oil and gas exploration and production. Since 1976,<br>about 5334 cases of crude oil spillage releasing an estimated 2.8 million barrels of oil into the land, swamps, estuaries and<br>coastal waters have been reported in Nigeria (Odiete, 1999). Heavy metals in crude oil are of varying concentration that can<br>affect the concentration of the naturally occurring heavy metals in the soil after a spill. This situation brings about an artificial<br>imbalance in the heavy metals concentration in the soil.