Role of colloids in the discharge of trace elements and rare earthn elements from coastal groundwater to the ocean

摘要

The concentrations of both the total dissolved (<0.45 mu m) and colloidal (10 kDa-0.45 mu m) phases of trace elements and rare earth elements (REEs) in coastal groundwater were measured to evaluate the role of colloids in transporting trace elements and REEs to the ocean through submarine groundwater discharge (SGD). Samples were collected from two different hydrogeological conditions, Hampyeong Bay in the southwestern coast of Korea and Jeju Island, Korea. The average colloidal proportions of A