Half-life, biological

scroll

The period during which a biological system, for instance a human being or animal, naturally excretes half of the absorbed quantity of a certain substance from the body or a specific organ. For adults the following biological half-lives apply:

• Tritium (whole body): 10 days,

• Caesium (whole body): 110 days,

• Iodine (thyroid gland): 80 days,

• Plutonium: 20 years (liver), 50 years (skeleton).

back

11 - 15 March 2018
Munich, Germany

30 September - 04 October 2018
Prague, Czech Republic