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ABSTRACT
A comparative study of the concentration of the heavy metals Chromium, Cadmium, Nickel, Lead, arsenic and mercury were undertaken in two dumpsites of Calabar municipality and Oban. This was to determine the levels of concentration of those heavy metals and to also ascertain the level of their contributory pollution effect to 14 the environmental in and around the dumpsites. A total of thirty six (36) soil samples were collected from and around the two dumpsites in Calabar Municipality and Oban at depths of 0 – 15cm and 15 – 30cm. the atomic Absorption Spectrometer (ARS) was used for the analysis; the results obtained were subjected to statistical treatment at P < 0.05 at 95% confidence level. In comparison, the highest concentrations of the heavy metals Chromium, Lead, Arsenic and Mercury were obtained from the Oban dumpsites, while the concentrations of Cadmium and Nickel were higher at Calabar Municipality dumpsites. The overall results shows that the concentration values for the two dumpsites were below the limits for Canada adopted for this work, except for Cadmium whose concentration was higher than the adopted limit,Indicating the un suitability of the soil at the dumpsite and its environ for agricultural, residential and industrial purposes.
