Comparison of methods used for extraction and geochemical distribution of heavy metals in bottom sediments from Sepetiba Bay, R.J.

Abstract

Bottom sediment samples from Sepetiba Bay were analyzed to establish a simple and fast method to assess anthropogenic metal concentrations (Zn, Pb, Cr, Cu, Cd) discharged by the local industrial park and to identify which metals were more available to the local biota. In the present work different acid methods for metal extraction are compared with sequential extraction procedures which are able to liberate metals attached to non‐residual layers of the sediments.