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Regulations (NRC, 10 CFR)
Part Index
Radionuclides
Praseodymium-142m
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)
59
Praseodymium-142m
2
W, see
136
Pr
8E+4
2E+5
7E-5
2E-7
1E-3
1E-2
Y, see
136
Pr
-
1E+5
6E-5
2E-7
-
-
Page Last Reviewed/Updated Wednesday, March 24, 2021