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Article Title: Bioaccummulation of Lead (Pb) and Chromium (Cr) in the Muscle of Periophthalmus Papillo in Elechi Creek Port Harcourt – Nigeria


This study was focused on the concentration, accumulation and health risk assessment of edible tissue of Periophthalmus papillo in the Elechi Creek complex. Samples of sediment and Periophthalmus papillo were collected monthly for six months from five stations: Station 1 (Eagle Cement water front), Station 2 (Saipem water front), Station 3 (Master energy water front), Station 4 (Agip water front) and Station 5 (Ogbakiri water front). The mean concentration of Pb and Cr in the sediment and fish muscles of the study were determined using GBC Avanta AAS. The Biota Sediment Accumulation Factor (BSAF), Hazard Quotient (HQ) and Hazard Index (HI) were also determined. The mean concentrations of Pb in sediment varied between 0.88 mg/kg - 5.08 mg/kg, and 3.18mg/kg to 18.06mg/kg in the muscle. The mean concentration of Cr in sediment were within the range of 1.87mg/kg - 7.99mg/kg, and 17.01mg/kg - 22.01mg/kg for the muscles. The mean concentrations of Pb and Cr in the muscle of Periophthalmus pappilo in all the stations exceeded the maximum permissible limit of the World Health Organization and therefore pose a health concern to the consuming population. The BSAF of Pb and Cr in all the stations exceeded one (1) implying that there is bioaccumulation and in some stations exceeded five indicating high bioaccumulation. The HQ and HI of Pb in all the stations exceeded the United State Environmental Protection Agency (USEPA, 2012 RfD).