In order to understand the contamination level and ecological risk of heavy metals in surface sediments from the upper reaches of Huaihe River,Cu,Cr,Zn,Cd and Pb in 16 sediment samples were measured by inductively coupled plasma mass spectrometry( ICP-MS)and inductively coupled plasma optical emission spectrometer( ICP-OES). Compared with the background value of soil from Henan Province,Cd was enriched to some extent and followed by Pb. The potential source of heavy metals in sediments from the upper reache...