United States Nuclear Regulatory Commission - Protecting People and the Environment

Neodymium-149

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)
60 Neodymium-1492 W, see 136Nd 1E+4 3E+4 1E-5 4E-8 1E-4 1E-3
Y, see 136Nd - 2E+4 1E-5 3E-8 - -
Page Last Reviewed/Updated Thursday, July 25, 2013