United States Nuclear Regulatory Commission - Protecting People and the Environment

Gadolinium-153

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)
64 Gadolinium-153 D, see 145Gd 5E+3 1E+2
Bone surf
6E-8 - 6E-5 6E-4
- (2E+2) - 3E-10 - -
W, see 145Gd - 6E+2 2E-7 8E-10 - -
Page Last Reviewed/Updated Thursday, July 25, 2013