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The Biogeochemistry Of Iodine In Seawater, Lingsu Zhang
The Biogeochemistry Of Iodine In Seawater, Lingsu Zhang
OES Theses and Dissertations
Iodate and iodide are the two major species of iodine in seawater. In comparison to iodate, iodide is thermodynamically unstable in oxic seawater. The conversion (or reduction) of iodate to iodide may be mediated via biological activities. Since biological activities vary with the season, the conversion of iodate to iodide may also vary seasonally. The conversion (or oxidation) of iodide to iodate is thermodynamically feasible, but the mechanism is poorly known. Hydrogen peroxide, which is ubiquitous in surface seawater, may oxidize iodide to iodate.
Water samples were collected in the middle and lower Chesapeake Bay in different seasons between 1990 …