Half life 3 20166/1/2023 ![]() ![]() In a nuclear accident large amounts of radioactive iodine-131 are released and this was certainly the case for Fukushima, especially in the early days. The thyroid gland requires iodine to function. Iodine-131, a radioactive isotope, is primarily taken up by the thyroid gland. (REM does not specifically reference an infant dose) Thus, the projected government dose of 4 REM was 80% of the suggested evacuation rate. Department of Health and Human Services division of Radiation Emergency Medical Management division (REMM), a child’s dose of 5 REM is immediate grounds for evacuation and prophylactic measures. Nuclear Regulatory Commission ( NRC) officials calculated an annual thyroid dose of 40,000 microsieverts (or 4 REM) for infants under one year of age in California.
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