Can a nuclear power plant use potassium iodide?

The NRC's regulations on the use of potassium iodide for radiological emergencies requires States (including Tribal governments) that have populations in the 10-mile emergency planning zone (EPZ) of a commercial nuclear power plant to consider including KI in emergency plans as a protective measure.

What is potassium iodide used for?

Potassium iodide, also known by its chemical symbol "KI", is a salt. In fact, it is commonly added to table salt to make it "iodized." In the event of a radiological emergency, if taken properly, KI may reduce how much radioactive iodine the thyroid gland is able to absorb, potentially reducing an increase in the risk of developing thyroid cancer.

Is potassium iodide FDA approved?

FDA has approved potassium iodide as an over-the-counter medication. As with any medication, individuals should check with their doctor or pharmacist before using it. Why is KI only being provided to the 10-mile EPZ around nuclear power plants?

Can potassium iodide extend the shelf life?

For States interested in extending the shelf life of KI, the FDA has published guidance on shelf life extension for the tablet form of potassium iodide. Extending the shelf life of KI tablets is possible due to the inherent stability of the chemical form.

How does potassium iodide protect the thyroid?

Potassium iodide is a special kind of protective measure in that it offers very specialized protection. Potassium iodide protects the thyroid gland against internal uptake of radioiodines that may be released in the unlikely event of a nuclear reactor accident.

Why did the NRC not require use of potassium iodide?

The NRC did not require use of potassium iodide by the general public because the NRC believes that current emergency planning and protective measures--evacuation and sheltering--are adequate and protective of public health and safety.