United States Nuclear Regulatory Commission - Protecting People and the Environment

Praseodymium-144

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-1442 W, see 136Pr 3E+4
St. wall
1E+5 5E-5 2E-7 - -
(4E+4) - - - 6E-4 6E-3
Y, see 136Pr - 1E+5 5E-5 2E-7 - -
Page Last Reviewed/Updated Thursday, July 25, 2013