Cobalt-55

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)
27 Cobalt-55 W, all compounds except those given for Y 1E+3 3E+3 1E-6 4E-9 2E-5 2E-4
Y, oxides, hydroxides, halides, and nitrates 3E+3 1E-6 4E-9

Page Last Reviewed/Updated Wednesday, March 24, 2021