Schematic of trace metal inputs in a potential deep-sea mining dewatering waste plume

Schematic of the trace metal inputs in a potential deep-sea mining dewatering waste plume and accidental spills from both the riser pipe and the mining platform. The section plot is dissolved oxygen concentrations along 12° N. Dissolved oxygen data are retrieved from the World Ocean Atlas 2018 annual climatology, and the gray contours are oxygen concentrations. The most enriched trace metals, in comparison to the background seawater concentrations, that are released from the reductive dissolution of Mn nodules are shown as white, curved arrows.