Hafnium-178m

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	Table 3 Releases to Sewers
			Oral Ingestion ALI (µCi)	Inhalation		Air (µCi/ml)	Water (µCi/ml)	Monthly Average Concentration (µCi/ml)
			Oral Ingestion ALI (µCi)	ALI (µCi)	DAC (µCi/ml)	Air (µCi/ml)	Water (µCi/ml)	Monthly Average Concentration (µCi/ml)
72	Hafnium-178m	D, see ¹⁷⁰Hf	3E+2	1E+0 Bone surf	5E-10	–	3E-6	3E-5
		D, see ¹⁷⁰Hf	–	(2E+0)	–	3E-12	–	–
		W, see ¹⁷⁰Hf	–	5E+0 Bone surf	2E-9	–	–	–
		W, see ¹⁷⁰Hf	–	(9E+0)	–	1E-11	–	–

Page Last Reviewed/Updated Wednesday, March 24, 2021