Assessment of Heavy Metals in Ground Water Sources in Agona District in the Central Region of Ghana

Abstract

This study was done to determine the concentration of trace metals in groundwaters in the Agona East district of the Central region of Ghana. Ground water samples were collected from 3 hand dug wells and 15 boreholes in the study area. All samples were analyzed for seven trace metals (Zn, Cu, Cr, Mn, Fe, Cd, Al) using Atomic Absorption spectrophotometer (AAS). The concentrations of the trace metals from the various areas range from 0.824 to 0.1.122 mg/L for Cu; 0.116 to 0.312 mg/L for Zn; <0.002 to 0.364 mg/L for Cr; <0.006 to 0.065 mg/L for Mn; 0.156 to 1.236 mg/L for Fe; <0.002 to 0.028 mg/L for Cd and 1.44 to 3.188 mg/L for Al. Four of the trace metals (Cu, Zn, Mn, and Cd) had their concentrations within the WHO standards for drinking water. Aluminium, Iron and chromium had their values above the WHO limits at most of the sampling sites.

Keywords: Atomic Absorption spectrophotometer (AAS), Concentration, Groundwater, Toxicity, Trace Metals


Article Review Status: Published

Pages: 16-24 (Download PDF)

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