摘要
１ＩｎｔｒｏｄｕｃｔｉｏｎＡｃｔｉｎｇａｓｒｅｐｏｓｉｔｏｒｙｏｒｓｏｕｒｃｅｏｆｖａｒｉｏｕｓｃｏｎｔａｍｉｎａｎｔｓｕｎｄｅｒｄｉｆｅｒｅｎｔｃｏｎｄｉｔｉｏｎｓ，ｐｒｏｂｌｅｍｓｅｄｉｍｅｎｔｓｍａｙｔｈｒｅａｔｅｎｔｈｅａｑｕａｔｉｃｏｒｇａ...
Equilibrium partitioning(EqP) approach was selected to establish the sediment quality criteria(SQC) in the Le An River near Dexing Copper Mine. Both freshwater quality criteria (WQC) for some heavy metals regulated by USEPA and national quality standards of surface water recommended by CNEPA were used as protective levels of aquatic organisms in this study. Meanwhile, the partitioning coefficients were derived directly from measured data. Comparison between SQC in this region and concentrations of contaminants in situ clearly indicated the distribution characteristics of metal contamination along the river. And the results also illustrated that measures of some metals exceeded their SQC levels in different degree, especially Cu.
