Transport and Bioavailability of Cu, Pb, Zn and Ni in Surface Sediments of Daliao River Watersystem
大辽河水系表层沉积物中重金属的迁移特征及生物有效性研究

To understand the transport and bioavailability of heavy metals in the surface sediment of Daliao River system,nine samples of surface sediment were collected.Clay content,pH,and Eh of these sediment samples were measured.Total contents and chemical speciation of Cu,Pb,Zn and Ni in the sediment were determined.In addition,the concentrations of Cu,Pb,Zn and Ni in the pore water of the sediment were determined separately by DGT(diffusive gradient in thin film) method and traditional centrifuge method.The tota...