Abstract:
Sequential extraction was found to be the best method to study the pollution level in
sediment compared to normalization and enrichment factor tests. Sediment samples were
collected off the Pahang coastline during pre monsoon and post monsoon period. Five
stations with relatively high clay contents were sampled for sequential extraction studies
of Copper (Cu), Lead (Pb), Zinc (Zn), Manganese (Mn), Iron (Fe) and Aluminium (Al).
The results during both monsoon seasons show a non-anthropogenic of analyze metals
except Cu during post monsoon period. The major accumulation fractions observed for
the heavy metal studied were residual fraction, bound to Fe-Mn hydroxides and bound to
organic matter fraction. In general, the concentrations of metals were higher in the post
monsoon season except for Mn and Fe. This related to the influence of the monsoon
season on sediment.
