Comparative Study of Heavy Metal Pollution of Sediments in Odo-Owa and Yemoji Streams, Ijebu-Ode Local Government Area, Sw Nigeria

摘要: This study aims at determining the elemental concentrations of Cu, Zn, Cr, Pb, Ni, Co and Cd in sediment samples from Odo-Owa Yemoji streams Ijebu-Ode Local Government Area (L.G.A), South Western (SW) Nigeria, using Atomic Absorption Spectrophotometer comparing concentration these metals two with other studies acceptable values for water. There was no detectable any samples; however all contained a amount one or more interest. The trend heavy sediments stream is Zn>Pb>Cu>Cr (151.3 mg/kg, 17.74 6.16 2.30 mg/kg) while Zn>Cr>Pb>Cu (3.63 2.37 1.67 1.43 mg/kg). Statistical analysis t-test showed great significant difference (p<0.05) among downstream except Cr. Except Zn metal (downstream), mean were below obtained within set by National Oceanic Atmospheric Administration (NOAA) limits (SQGs Zn-150 Cu-34 Cr-81 Pb-46.7 mg/kg), so not considered to be cause toxicology concern.