Actinium-228

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)
89	Actinium-228	D, see ²²⁴Ac	2E+3	9E+0 Bone surf	4E-9	–	3E-5	3E-4
		D, see ²²⁴Ac	–	(2E+1)	–	2E-11	–	–
		W, see ²²⁴Ac	–	4E+1 Bone surf	2E-8	–	–	–
		W, see ²²⁴Ac	–	(6E+1)	–	8E-11	–	–
		Y, see ²²⁴Ac	–	4E+1	2E-8	6E-11	–	–

Page Last Reviewed/Updated Wednesday, March 24, 2021