United States Nuclear Regulatory Commission - Protecting People and the Environment

Protactinium-230

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)
91 Protactinium-230 W, see 227Pa 6E+2
Bone Surf
5E+0 2E-9 7E-12 - -
(9E+2) - - - 1E-5 1E-4
Y, see 227Pa - 4E+0 1E-9 5E-12 - -
Page Last Reviewed/Updated Thursday, July 10, 2014