Potential Human Health Risk Assessment and Evaluation of Heavy Metals Contamination in Seafood from River Niger Across Ndoni Town in Onelga, Rivers State

Anthropogenic Sources tend to elevate level of heavy metals in the water bodies. The seafood bio accumulates these metals often times within their body system. This study evaluated the quantities of Lead (Pb), Cadmium (Cd), Chromium (Cr), Nickel (Ni), Copper (Cu), Iron (Fe), Zinc (Zn) and Mn from seafood specifically Periwinkle, Shrimp and Crab obtained from River Niger across Ndoni town in Rivers State. The result obtained was employed in assessing the human health risk. Ninety six samples comprising of Periwinkle, Shrimp and Crab were digested and tested using Flame (F-AAS).The result reflected that the levels of Pb, Cd, Cr, Ni, Cu, Fe, Zn, and Mn ranged from 0.040 ± 0.002to 0.817 ± 0.001 mg/kg; 0.002 ± 0.001 to 0.064 ± 0.001 mg/kg; 0.386 ± 0.005 to 3.422 ± 0.011 mg/kg; 0.670 ± 0.008 to 4.760 ± 0.015 mg/kg; 2.154 ± 0.003 to 9.108 ± 0.003 mg/kg; 5.120 ± 0.012 to 512.31 ± 0.006 mg/kg; 6.137 ± 0.009 to 18.337 ± 0.020 mg/kg; and 2.476 ± 0.029 to 8.322 ± 0.026 mg/kg correspondingly. The concentration of Cr surpassed the permissible values. The results of the human health risk assessment pointed out that it is safe and free from non-carcinogenic carcinogenic risks. However, Cr should be checked to prevent impending health risk from its accumulation in the body.