United States Nuclear Regulatory Commission - Protecting People and the Environment

Rhodium-99

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)
45 Rhodium-99 D, see 99mRh 2E+3 3E+3 1E-6 4E-9 3E-5 3E-4
W, see 99mRh - 2E+3 9E-7 3E-9 - -
Y, see 99mRh - 2E+3 8E-7 3E-9 - -
Page Last Reviewed/Updated Thursday, July 10, 2014