Radioactive Bananas

Radioactive Bananas

Because a small percentage of potassium consists of an unstable isotope, bananas are technically a radioactive food. However, you would have to eat around five million bananas to experience radiation sickness.


Key Facts In This Video

  • 1

    If the human body is exposed to more than two sieverts of ionizing radiation at once, it will die. (0:50)

  • 2

    As an airplane gains altitude, the level of radiation inside the plane increases. (5:07)

  • 3

    The lungs of smokers are exposed to more ionizing radiation than people living near Fukushima, radiation workers, and astronauts. (9:57)

See all

Radioactive Decay




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