Figure 5
From: A call for refining the role of humic-like substances in the oceanic iron cycle
Black shapes show the relationship between the concentrations of dissolved iron (DFe) and humic substances (eHS, from this study, filled, and published values12, open) compared to the typical relationship between DFe and the ligand pool (L, open coloured shapes, this study and literature-derived values, slope 0.76 ± 1.3, not shown. See Methods for references). The line represents 1:1 complexation of DFe with the concentration of total ligand or eHS expressed as nanomolar iron binding equivalent, which for eHS is based on the maximum reported potential binding capacity (32 nM Fe per mg/L HA13). Figure generated using Matlab software.
