United States Nuclear Regulatory Commission - Protecting People and the Environment

Promethium-147

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)
61 Promethium-147 W, see 141Pm 4E+3
LLI wall
1E+2
Bone Surf
5E-8 - - -
(5E+3) (2E+2) - 3E-10 7E-5 7E-4
Y, see 141Pm - 1E+2 6E-8 2E-10 - -
Page Last Reviewed/Updated Thursday, July 10, 2014