United States Nuclear Regulatory Commission - Protecting People and the Environment

Neptunium-236m (22.5 h)

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)
93 Neptunium-236m
(22.5 h)
W, all compounds 3E+3
Bone surf
3E+1
Bone surf
1E-8 - - -
(4E+3) (7E+1) - 1E-10 5E-5 5E-4
Page Last Reviewed/Updated Thursday, July 25, 2013