Zhegao River at the north bank of eastern Chaohu Lake was selected to investigate the sedimentary heavy metal contamination. Thirteen sampling sites(S1-S13) were set from upstream to downstream of the river and the contents of V, Cr, Ni, Cu, Zn, Cd and Pb in the surface sediment were analyzed. Results showed that the heavy metal contents in the surface sediment followed a descending order as: Cd > Cu > Ni >Pb> V > Zn > Cr. The level of Cd and Cu was high in some sites with the maximum values of 173.78 and 1...