In the wake of the still ongoing March 2011 Fukushima disaster, governments in Europe and Canada began implementing more pro-active radiological disaster plans — including pre-distribution of potassium iodide (KI) in reactor emergency planning zones (EPZs). Potassium iodide is now directly delivered in advance to populations around nuclear plants throughout Europe, including Belgium, Finland, France, Germany, Lithuania, Luxembourg, Netherlands, Romania, Slovakia, Sweden, and Switzerland. However, no such program exists in the United States.

KI is a safe, stable form of iodine and is commonly used to iodize table salt. If ingested in prescribed doses in time when a nuclear accident occurs, it saturates the thyroid and blocks the absorption of radioactive iodine-131. Exposure to iodine-131 has been definitively linked to increased rates of thyroid cancer, most demonstrably after the 1986 Chernobyl nuclear disaster in the former Soviet Ukraine, and the 2011 Fukushima disaster in Japan.

However, KI works only to block absorption by the thyroid of radioactive iodine-131, a rapidly mobile radioactive gas released during a nuclear accident and one of the first hazards to arrive.  KI is by no means a […]

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