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Articles by Samuel O. Akporido
Total Records ( 2 ) for Samuel O. Akporido
  Samuel O. Akporido , Patience O. Agbaire and Ayodele R. Ipeaiyeda
  Street production is a major contributor of heavy metals to the environment. Soil samples were collected from seven sampling stations around Udu River in the vicinity of a steel plant and two sampling stations as control from around Ovwuvwe stream for two years (two dry and two rainy seasons). Heavy metals were determined by flame atomic absorption spectroscopy after digestion with 2M HNO3 and physicochemical parameters determined by various standard methods. Important results are pH (5.85±0.32), Fe (3110±1500 mg kg-1), Pb (126±40 mg kg-1), Cd (9.2±6.4 mg kg-1), Zn (112±41 mg kg-1), Ni (44±50 mg kg-1) and Cu (18.3±8.2 mg kg-1). The average concentrations of all the metals with the exception of Cu exceeded different soil guideline values with which they were compared. Most sampling stations are polluted with heavy metals, the contamination factor of the heavy metals exceeded unity in most sampling sites. The Pollution Load Index (PLI) of stations A and C are 4.03 for each, respectively, they were ranked as moderately polluted to highly polluted and they are the most polluted sampling stations. It was also observed that sampling stations nearer the steel plant are more polluted than others.
  Samuel O. Akporido and Percy C. Onianwa
  Water samples from Esi river were analyzed for hydrocarbons and heavy metals to assess the impact of petroleum prospecting activities on the environment of the Western Niger Delta. Important results obtain are for O and G (11600±8600 μg L-1), TPH (4270±3000 μg L-1), Pb (39±33 μg L-1), Cd (2.4±3.1 μg L-1), Cr (42±17 μg L-1), Cu (16.1±7.4 μg L-1) and Zn (107±7.9 μg L-1), showing high concentrations of O and G and TPH. The nickel-vanadium ratio of 1.71 revealed that the measured oil residue had its source from oil drilled in the area. The concentration of Pb was also high relative to Nigerian and International guideline values for drinking water. The water is polluted and not fit for drinking.
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