Geochemistry of terrigenous sediments in surface water from ore and okitipupa southwest, Nigeria

Elements pollution in water bodies and sediment have becoming increasingly a catholic focus. The knowledge of hydrogeochemical processes affecting water quality is necessary in order to assess the potential changes that occur and identify possible abatement strategy. Fifteen elements were analyzed in the sediment using AMPTEX (R), X-ray fluorescence method. The highest average concentration was recorded for Fe with an average value of 19650 ppm and the lowest average concentration was recorded for Cu with an average value of 10.86 ppm. The average concentration values recorded in this study fell with the purview of the available regulatory limits. The highest enrichment value and geo-accumulation value was recorded for Se and the highest pollution index was recorded for Fe, Mn, K, and Ca correlated well with Ni. The Enrichment values when Titanium (Ti) was used as reference element Se > Zr > As > Zn > V > Ni > Fe > Mn > Cu ≥ Sr > Cr > Rb > K >Ca. For Iron Se > Zr > As > Zn > V > Ni > Ti > Mn > Cu ≥ Sr > Cr > Rb > K >Ca. For Manganese (Mn) was Se > Zr > As > Zn > V > Ni > Ti > Fe > Cu ≥ Sr > Cr > Rb > K > Ca. For Copper Se > Zr > As > Zn > V > Ni > Ti > Fe > Mn > Sr > Cr > Rb > K > Ca. Bangladesh J. Sci. Ind. Res.53(2), 145-154, 2018