Evaluation of Heavy Metal Concentrations in Surface and Ground Water Collected from River Challawa, Kumbotso Tannery Dumpsite and their Vicinity, Kano State, Nigeria.

Abstract

A study was conducted to determine the concentration of heavy metals in surface and ground water collected from river Challawa and Kumbotso tannery dumpsite. The samples were analyzed for the levels of Co, Ni, Pb, Cr, Cu, Cd, Zn, and Fe using Atomic Absorption Spectroscopy (AAS). The result showed that all the metals exceeded the standard limit in the water. The estimated metal levels in the water were compared with the safe limits laid down by the World Health Organization (WHO).

Keywords: AAS, Challawa Industrial Area Effluents, Heavy Metals, Tannery