United States Nuclear Regulatory Commission - Protecting People and the Environment

Californium-250

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)
98 Californium-250 W, see 244Cf 1E+0
Bone surf
9E-3
Bone surf
4E-12 - - -
(2E+0) (2E-2) - 3E-14 3E-8 3E-7
Y, see 244Cf - 3E-2 1E-11 4E-14 - -
Page Last Reviewed/Updated Thursday, July 10, 2014