HEAVY METAL CONCENTRATIONS IN SURFACE WATER AND SEDIMENT FROM DRINA RIVER, BIH.

In this paper, an analysis of the surface water and sediment of the Drina River was carried out. Samples were taken from different six locations along the course of the Drina River in Bosnia and Herzegovina. Selected heavy metals were determined in the sediment after acid digestion using atomic absorption spectrometry - flame technique. The same method was used to determine Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn in surface water samples. The obtained results indicate that the Drina River in the investigated part of the course meets most of the prescribed metal limit values. The results obtained for the river Drina were compared with the results obtained in the studies of the rivers Bosna, Trstionica, and Spreča in Bosnia and Herzegovina. [ABSTRACT FROM AUTHOR]