Assessment on Heavy Metals Pollution in the Sediment of the Three Rivers of Poyang Lake

At the junction of Le An river,Chang river and Rao river,the surface sediments were collected to be analysed the present situation of heavy metals pollution in these rivers and evaluate the potential ecological risk.The results showed that Sanjiang basin are suffering different degrees pollution of Cu,Zn,Pb and Cd.From the total pollution degree analyse,the order of the pollution degree for each pollutant is:CuZnPbCd and for each sampling point is:Cai jiawan point 2nd Poyang town Zhao jiawan Rao estuary Changjiang Cai jiawan point 1st yaoshan Liujia.From the results of the potential ecological pollution analysis,the order of the pollutants risk to Poyang Lake is:Zn Pb Cd Cu.