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Author: Admin | 2025-04-27

Water from groundwater recorded 73.33% followed by 16.67% for surface water and 9% for rain water harvesting. There might be population using a combination of the two or more sources of water. About 90% of the respondents knew that direct use of such water was harmful for drinking, washing, bathing and cooking. Water quality impairment such as colour and high level of salt are common in the water. This practice could have health implication on them if continued unabated. Pollution index for toxic metals (Pb,As and Hg) and Total Petroleum Hydrocarbons(TPH) values determined were relatively high suggesting pollutant are related to the bitumen deposits in the region. For example Ilubinrin well (0.5 mg/L), and Lodasa well (0.3 mg/L) while others were at non detection level. For TPH, there were variations in the tested water samples, Lodasa well recorded the highest value of 1480 mg/L, Agbabu stream 900, Ilubinrin stream and well 240 mg/L and 120 mg/L, respectively, Agbabu well 110 mg/L, and the least at Lodasa stream 80 mg/L. This could be attributed to seasonal rain that control streamflow of water bodies in the bitumen-rich area. The study indicated that bitumen, being a complex mixture of hydrocarbons and associated metals was responsible to the pollution level in the water bodies reportedCharacterization of bitumen samples from four deposits in southwest, Nigeria using trace metalsEgyptian Journal of Petroleum, 2017Bitumen samples collected from different locations in southwestern Nigeria were analysed for trace metal constituents such as Fe, Pb, Cu, Cd, Ni, Mn and V using Atomic absorption spectroscopy. The concentration of Fe ranged from 38.00 to 1537.00 ppm, Pb ranged from 11.00 to 27.00 ppm, Cu ranged from 3.00 to 10.00 ppm, Cd ranged from 4.00 to 15.00 ppm, Ni ranged from 9.00 to 62.00 ppm, Mn varied between 3.00 and 6.00 ppm, V ranged 10.00-150.00 ppm. Some ratios of these trace metals such as V/Ni, V/(V + Ni) and Fe/V were calculated, and the results show V/Ni ranged from 0.24 to 16.67, V/(V + Ni) varied from 0.20 to 0.94 and Fe/V ranged from 3.8 to 15.37. The low values of V/Ni ratios of samples AB, OI and IL suggest high maturity, mixed marine and terrestrial source of bitumen while the calculated values of V/(V + Ni) suggest that the samples were formed under oxic condition. The results were correlated using Pearson's correlation matrix. A high positive correlation among the four bitumen samples indicates that they are geologically and genetically related.Structural Control for Bitumen Seepages in Imeri, Southwestern Nigeria2011Electrical resistivity survey was done to investigate the role of fault as barrier or conduit for bitumen seepages found in Imeri, S outhwestern Nigeria. Two (2) Vertical electrical sounding (1D) with a maximum electrode spacing(AB) of 700m using schlumberger array, and an electrical resistivity imaging (ERI) along the same profile using wenner array were used in this research work; the results we re interpreted using WINKLINK and DIPROWIN respectively. The bitumen horizon was encountered at depth of ~34.56m an d ~20.99m with resistivity value

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