Abstract: The status of heavy metal pollutants of the River Niger within the vicinity of the Ajaokuta Iron and Steel Industrial complex was determined. The concentration levels of the metals- Cr, Pb, Fe, Co, Mn, V, Zn, Cu, Ni and Cd were determined in water, fish, soil and plant using Atomic Absorption Spectrophotometer. The results show that the concentrations of these heavy metals were higher in the plant samples (Eichhornia crassipes) than in other samples analysed. The heavy metal concentrations in the plant sample was in the order Fe > Mn > Zn > Cu > Ni > Cr > Co, while the other metals were not detected. Heavy metal concentration in the other samples were found to be low and mostly at undetectable levels.