United States Nuclear Regulatory Commission - Protecting People and the Environment

Neptunium-237

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-237 W, all compounds 5E-1
Bone surf
4E-3
Bone surf
2E-12 - - -
(1E+0) (1E-2) - 1E-14 2E-8 2E-7
Page Last Reviewed/Updated Thursday, July 10, 2014