Oil Spillage and Its Devastating Effects on Fishing and Drinking Water of Ikhorigho and Otumara Communities in Oil Producing Area of Ondo State, Nigeria
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Abstract : The devastating effects of oil spillage on the fishing and drinking water of Ikhorigho and Otumara communities in oil producing area of Ondo State were investigated. Water samples were collected from fishing sites (FW) and some streams which serves as drinking water in both communities. The water samples from fishing sites (FW) and drinking water (DW) were taken from these communities because of numerous oil spillages recorded in the area. The samples were thoroughly mixed to have a composite sample. The water collected from both fishing and drinking water were analyzed to determine pH, electrical conductivity (EC), dissolved oxygen (DO), total dissolved solid (TDS), turbidity (T) and total hardness (TH) using the method of Ademoroti . The results obtained showed that both the fishing and drinking water are highly polluted when compared with WHO  standard as the values for fishing water are pH 3.2; DO 3.8; EC 580; TDS 640; T 28 and WH 460 while that of drinking water are pH 3.6; DO3.1; EC540; TDS 680; T 32 and WH 490 respectively. Heavy metals contents in water samples were determined using Atomic Adsorption Spectrophotometer (AAS). The results showed that drinking water was polluted with all the tested metals while the fishing water accumulated most of the tested metals except Cu and Ni which were not detected. These metals may pass to humans’ body through food chain. Since Fe, Zn, Mn, Cd, Pb, Zn and Cr are known to be neurotoxic therefore the people drinking the water and eating the fish from the fishing water may be neurotoxicity.