- Conference date: 15–18 September 2009
- Location: Karlsruhe (Germany)
This study is aimed to analyze and assess the existence of heavy metal pollution in the surface soils along Subin River in the Kumasi metropolis using X‐Ray Fluorescence (XRF) analysis. Twenty (20) soil samples were collected along the River at regular interval of 5 m (covering entire area of about ), with the aid of a core sampler. The samples were suitably packaged and conveyed into the laboratory for sample preparation and analysis. The concentration of heavy metals (Cr, Cu, Pb, Hg, Ni, Zn, Tl, V and Cd) were measured and quantified after the elemental analysis using XRF spectrometry, and their respective average concentrations ( and were attained. According to these results, the presence of heavy metals such as (Pb, Cd and Hg) present in the soil, were highly recorded above their threshold limit values (TLVs) by an amount of and respectively. These metals are highly toxic even in very low concentrations and their toxicity and poisoning in living organisms often occur through exchange and co‐ordination mechanisms in the soft tissues. These high excess concentration values alarmingly depict that, the study site is highly polluted with those metals, and the Subin river‐body and the inhabitants who reside closely to the polluted river, are at serious risk. The extent to which the study area is polluted, was successfully and statistically analyzed from the standard deviation (σ) and difference between the average concentration values recorded, and the TLVs.
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