Linking Selenium Sources to Ecosystems: Depth-Specific Gradients at Three Reservoir Monitoring Sites at Lake Koocanusa

Graph showing depth-specific gradients across three reservoir monitoring sites at Lake Koocanusa in 2017 (south of Elk River inflow, at the international boundary, and at the forebay).   A, for dissolved selenium concentrations; B, for suspended particulate material selenium concentrations; C, for environmental partitioning factor (Kd) values (that is, partitioning factor between the dissolved phase and particulate phase).