Assessment Of Post-Spill Impact On Soil, Case Study (K.Dere) Ogoni Land

ABSTRACT

The supply of food, water, and agricultural resources is fast becoming a difficult issue. This is because the resources are heavily polluted as a result of intensive crude oil spill, and oil related activities in the state. This study focused on the assessment of soil samples from Ogoni, (k- Dere) community. To ascertain the level of pollution that may have occurred. Different parameters were analyzed, namely pH, total petroleum hydrocarbons, nitrate, phosphate, sulphate, zinc, iron, magnesium, copper, cobalt, chromium, nickel, lead, cadmium, calcium. Analyses used were Gas chromatography, Ultra Violet Visible Spectrophotometry and Atomic Absorption also Environmental Guidelines and Standard for the Petroleum industry in Nigeria (EGASPIN). The intervention between the physical variables was explored using the Pearson Product Moment Correlation Coefficient®. The one way ANOVA was used to determine variance of equality in spatial means of the variables. The result showed that TPH correlated positively with phosphate, nickel, zinc and copper. The physiochemical variables did not vary significantly across sample location. [ F(2.01) < Ferit (3.95)]. While few parameters exceeded standards, while other parameters fell within acceptable limits. This result shows that soils in ogoni k-dere community is not totally fit for agricultural activities, most especially for people living within that community. Adequate control measures were recommended to control the assessments of the post spill of crude oil in that community and so many other communities not mentioned for sustainability.