... sediment using the wet chemical method (ICP- OES) The comparison of the seasonal distribution of Mn, Zn, Cu, Ni, Fe, and Co in the sediments by the ICP- OES and EDXRF techniques is presented in Fig ... increase of metal flux towards the sediment Acknowledgements Conclusions The comparison of the seasonal distribution of Mn, Zn, Cu, Ni, Fe, and Co in the sediments, using the ICP- OES and EDXRF techniques, ... collected in October/1999 (5), April/2000 (11), and September/1999 (4); and group C clusters the samples collected in the remaining months The variables with the highest loadings for PC1, setting the...