United States Nuclear Regulatory Commission - Protecting People and the Environment

Iridium-190

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)
77 Iridium-190 D, see 182Ir 1E+3 9E+2 4E-7 1E-9 1E-5 1E-4
W, see 182Ir - 1E+3 4E-7 1E-9 - -
Y, see 182Ir - 9E+2 4E-7 1E-9 - -
Page Last Reviewed/Updated Thursday, July 10, 2014