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A member asked:
What is the half-life of iodine 131?
5 doctors weighed in across 2 answers
Long: Although you excrete most in your urine, feces, sweat... After 3 days, the rest remains in iodine avid tissue for 2-3weeks exposure to others after 1w safe, request you do not expose yourself for min 3-4 d after receiving dose.
Answered 12/5/2012
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8 days: Iodine-131 has a radioactive decay half-life of about 8 days!
Answered 3/17/2023
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