DISTRIBUTION OF HEAVY METALS IN SOIL FROM SELECTED DUMPSITES IN PORT HARCOURT METROPOLIS, RIVERS

Using an atomic absorption spectrometer, composite samples were obtained from the six trash dumpsites and examined for heavy metal contents (AAS VGB 210 system). The heavy metal concentrations in (mg/Kg) were in the following order: Fe>Mn>Cu>Zn>Ni>Co>Cd>V>Pb. The concentrations of heavy metals found in the dumpsites were lower than the comparable average in shale. The values from the various dumpsites, on the other hand, demonstrated a link to industrial operations. The highest values were recorded in regions of Port Harcourt where there is a significant presence of industrial operations in each of the metals. The contamination factor (CF) found that the dumpsite soils were not contaminated with any heavy metals and do not appear to be a threat at this time. As a result, greater regulatory efforts by relevant organisations should be implemented in order to prevent future accumulations that could endanger the environment.

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