The distribution of particulate iodine in the Atlantic Ocean |
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| Authors: | George TF Wong Peter G Brewer Derek W Spencer |
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| Institution: | Department of Chemistry, Woods Hole Oceanographic Institution, Woods Hole, Mass. 02543, USA |
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| Abstract: | The iodine content of marine suspended matter obtained from thirteen stations in the Atlantic between 75°N and 55°S has been measured. The concentration of particulate iodine is high in the surface, up to 127 ng/kg of seawater being observed. Below the euphotic zone, it drops sharply to 1–2 ng/kg. The iodine-containing particles are probably biogenic. A simple box-model calculation shows that only 3% of the particulate iodine produced in the surface water may reach the deep sea and that the residence time of these particles in the surface water is about 0.1 year. |
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