Spinachs contaminated by iodine-131
Spinach grown in north-eastern Japan were contaminated by radioactivity of the Fukushima accident in March 2011. Radioactive dust have deposited iodine-131 atoms on spinach broad leaves, leading to its selling interdiction. Iodine-131 is the most feared radioactive release after a nuclear accident because of its fixation by the thyroid. But - counterpart of its high activity - the amount of iodine-131 is divided by 2 every 8 days, by 2500 every 3 months. After a year no iodine traces remain in food.
Eugene Hoshiko / AP