TABLE 2.

Restrictive Annual Limit on Intake Values for Select α-Emitting Radionuclides and Radionuclides in Common Medical Use

RadionuclideDecay modeRestrictive annual limit on intake (MBq)
18Fβ1,850
99mTcIT2,960
131Iβ1.11
223Raα0.026
225Acα0.011
227Thα0.011