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Articles by U.C. Chijioke
Total Records ( 1 ) for U.C. Chijioke
  A.O.Ubalua , U.C. Chijioke and O.U. Ezeronye
  Levels of lead (0.064 Fg L-1), iron (0.81 Fg L-1), zinc (4.82 Fg L-1), copper (0.19 Fg L-1), arsenic (0.05 Fg L-1), manganese (0.03 Fg L-1), chromium (0.005 Fg L-1) and mercury (0.01 Fg L-1) were determined in the water and in some fish and shellfish from Aba river. They were found to be below the maximum allowable levels set by the United states Environmental Protection Agency(USEPA), except for lead, iron and mercury. This implies that waste assimilation capacity of the river is high, a phenomenon that could be ascribed to dilution, sedimentation and continuous water exchange. Emperical evidence shows that the metals were at low levels in the organisms. However, when compared with levels determined in fish from a rural river, relative enrichment in the Aba river fish, ranging from 0.01 for lead to1.5 for zinc were observed. This is an indication that urban and industrial wastes discharged into the Aba river had significant effect on the ecological balance of the river.
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