United States Nuclear Regulatory Commission - Protecting People and the Environment

Strontium-90

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)
38 Strontium-90 D, see 80Sr 3E+1
Bone Surf
2E+1
Bone Surf
8E-9 - - -
(4E+1) (2E+1) - 3E-11 5E-7 5E-6
Y, see 80Sr - 4E+0 2E-9 6E-12 - -
Page Last Reviewed/Updated Thursday, July 25, 2013