Eric Walker added Radioactivity is blowing in the air | The Independent Barents Observer to Svalbard, Russia and Iodine-131

Eric Walker added Radioactivity is blowing in the air | The Independent Barents Observer to Iodine-131, and added Iodine-131 to Iodine

Eric Walker added Silver iodide and Iodine-131 and Has there been any measurable increase in Goiters as sea salt becomes more popular? : askscience to Iodine, and added Iodine to Chemical elements