Thorium-228

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)
90 Thorium-228 W, see 226Th 6E+0
Bone Surf
1E-2
Bone Surf
4E-12 - - -
(1E+1) (2E-2) - 3E-14 2E-7 2E-6
Y, see 226Th - 2E-2 7E-12 2E-14 - -

Page Last Reviewed/Updated Thursday, March 25, 2021