United States Nuclear Regulatory Commission - Protecting People and the Environment

Iodine-120m

Atomic
No.
Radionuclide Class Table 1
Occupational Values
Table 2
Effluent Concentrations
Table 3
Releases to
Sewers
Col. 1 Col. 2 Col. 3 Col. 1 Col. 2
Oral
Ingestion
ALI
(µCi)
Inhalation Air
(µCi/ml)
Water
(µCi/ml)
Monthly
Average
Concentration
(µCi/ml)
ALI
(µCi)
DAC
(µCi/ml)
53 Iodine-120m2 D, all compounds 1E+4
Thyroid
2E+4 9E-6 3E-8 - -
(1E+4) - - - 2E-4 2E-3
Page Last Reviewed/Updated Thursday, July 10, 2014