“When Potassium Iodide is taken as directed, it literally “floods” the thyroid with a stabilized iodine, basically saturating the thyroid gland so that the radioactive Iodine 131 particles cannot find a home and is expelled out the normal body waste channels. Potassium Iodide tablets can prevent up to 99% of the damage caused by radioactive nuclear fallout (dust). “
Or so the people who sell it say. Sounds like you dont need to take any unless there’s a major event. This doesn’t include the release of a small amount of gas.
The key (I think - I’m no expert) is knowing the distance from a strike or a meltdown to know what your risks are. I know for example, that I will need to take Potassium Iodide if there is a nuclear event in a city 30 minutes from me, but not necessarily if there is a nuclear event at a city 4 hours away.
“When Potassium Iodide is taken as directed, it literally “floods” the thyroid with a stabilized iodine, basically saturating the thyroid gland so that the radioactive Iodine 131 particles cannot find a home and is expelled out the normal body waste channels. Potassium Iodide tablets can prevent up to 99% of the damage caused by radioactive nuclear fallout (dust). “
This is basically LeChatelier’s Principle. That’s why this works.