United States Nuclear Regulatory Commission - Protecting People and the Environment

Hafnium-170

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)
72 Hafnium-170 D, all compounds except
those given for W
3E+3 6E+3 2E-6 8E-9 4E-5 4E-4
W, oxides, hydroxides,
carbides, and nitrates
- 5E+3 2E-6 6E-9 - -
Page Last Reviewed/Updated Thursday, July 10, 2014