Mobility and distribution of some selected trace metal was carried out using Tessier et al 1979sequential extraction method and the results obtained shows from dumpsite A, samples taken from 0 – 5cm the result ranges from 0.56 – 21.56%, 0.34 – 40.66%, 1.34 – 29.18%, 0.06 to 45.91% and 0.37 – 12.95% for the exchangeable, Fe – Mn oxide, organic carbonate and residual fractions respectively. For the samples taken from 10 – 15cm at dumpsite A, the results of the fractions are 0.42 – 13.63%, 0.03 – 18.48%, 1.01 – 25.34%, 0.03 – 35.19% and 0.27 – 9.31% for exchangeable, Fe – Mn oxide, organic, carbonate and residual fractions. The results of dumpsite Bare 0.48-27.36%, 0.28-40.07%, 2.93-31.15%, 3.87-42.50% and 0.84-30.67% for exchangeable, Fe-Mn oxide, Organic, carbonate and residual fractions for sample taken from 0-5cm while for samples taken from 10 – 15cm the results show 0.32 – 36.38%, 0.23 – 16.49%, 0.53 – 15.83%, 1.53 – 34.88% and 0.04 – 5.27% for exchangeable Fe – Mn oxide, carbonate and residual fractions respectively. The dumpsite C has the concentration of the various fractions ranging from 0.25 – 18.34%, 2.73 to 15.58, 4.02 – 23.28%, 0.07 – 45.25% and 1.57 – 37.43% for exchangeable, Fe – Mn oxide, organic, carbonate and residual for samples taken from 0 – 5cm while for samples taken between 10 – 15cm the concentrations are 0.42 – 12 .62% 0.80 – 11.59%, 2.16 – 17.33%, 9.86 – 34.48% and 0.99 – 32.99% respectively.
Heavy metals, Mobility, Distribution, Toxicity and Speciation
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