United States Nuclear Regulatory Commission - Protecting People and the Environment

Tin-121m

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)
50 Tin-121m D, see 110Sn 3E+3
LLI wall
9E+2 4E-7 1E-9 - -
(4E+3) - - - 5E-5 5E-4
W, see 110Sn - 5E+2 2E-7 8E-10 - -
Page Last Reviewed/Updated Thursday, July 10, 2014