Effects of oil spillage on Soil and Surface Water in Odoro Ikot Ukanafun Area Akwa Ibom State|
IDO, U. S. & EGESI, N.
A hydrogeochemical survey of water and soil sample in Odoro Ikot and its environment was carried
out using Atomic Absorption Spectrometry (AAS) techniques. It was done to assess the impact of oil spillage on soil
and surface water in the area. The soil samples were taken from the top to a depth of 30cm at the interval depth of
5cm each. Results obtained from these analyses were compared with World Health Organization (WHO) Department
of Petroleum Resources (DPR)and Federal Environmental Protection Agency (FEPA) standards. The following
parameters were measured and analyzed, temperature, pH, electrical conductivity, oil/grease, copper (Cu), cadmium
(Cd) lead (Pb), Zinc (Zn), chromium (Cr), Iron (Fe), phosphorus, (Pox) and sulphate (S04). The results of the analysis
show that the surface water samples exceeds the WHO, FEPA and DPR acceptable standards. Apart from the water
pH which was almost moderately acidic and oil/grease value in the study area, other parameters also exceeds the
recommended standards, therefore there is need for remediation or clean up exercise to be carried out in the study
area. The comparison with the soil sample analytical results show that the crude oil has polluted the soil and rendered
it unsuitable for agricultural purpose since the ecology has been damaged and the soil degraded. ©JASEM
Tozicity, heavy metals, soil and water, WHO standard, Odoro Ikot Ukanafun, Akwa Ibom State Nigeria.