United States Nuclear Regulatory Commission - Protecting People and the Environment

Lanthanum-138

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)
57 Lanthanum-138 D, see 131La 9E+2 4E+0 1E-9 5E-12 1E-5 1E-4
W, see 131La - 1E+1 6E-9 2E-11 - -
Page Last Reviewed/Updated Thursday, July 25, 2013