Determination of Some Heavy Metals from Ground Water Samples Obtained from Selected Motor Parks in Kaduna, Nigeria

Abstract

: This study is aimed at ascertaining the levels of pollution of borehole and well water of selected motor parks in Kaduna, Nigeria. Borehole and well water samples from Abuja junction, Sabo garage, Television garage, Shaba modern market park, Kawo garage, Mando park were collected and analyzed for lead, cobalt, nickel and cadmium using Atomic Absorption Spectrophotometric technique. Results showed varying concentrations based on location. The results obtained were compared with WHO/NSDWQ standards. Lead was found in excessive levels above the recommended safe limit in the range of 0.04-0.07 mg/l. Nickel and cobalt were within the recommended safe limit in the range of 0.01-0.02 mg/l and 0.002-0.05 mg/l. Cadmium was found in high concentration above safe limits in the range of 0.002-0.012 mg/l. High levels of metals might be associated to the mechanical activities, high vehicle exhaust, municipal waste and other anthropogenic activities within the busy motor parks. The results indicate that most of the samples are contaminated with abnormal levels of lead and cadmium capable of causing health hazards to consumers of the water; this suggests that water found in motor parks require further treatment before consumption.