Radionuclide Disposal Table

Allowable Disposal Amount of Radioactive Materials

Table 1 indicates the chemical form which is to be used for selecting the appropriate ALI or DAC value. The ALIs and DACs for inhalation are given for an aerosol with an activity median aerodynamic diameter (AMAD) of 1 ?m and for three classes (D,W,Y) of radioactive material, which refer to their retention (approximately days, weeks or years) in the pulmonary region of the lung. This classification applies to a range of clearance half-times of less than 10 days for D, for W from 10 to 100 days, and for Y greater than 100 days. The class (D, W, or Y) given in the column headed "Class" applies only to the inhalation ALIs and DACs given in Table 1, columns 2 and 3.

Table 2 provides concentration limits for airborne and liquid effluents released to the general environment.

Table 3 provides concentration limits for discharges to sanitary sewer systems.

Notation

The values in Tables 1, 2, and 3 are presented in the computer "E" notation. In this notation a value of 6E-02 represents a value of 6x10-2 or 0.06, 6E+2 represents 6x102 or 600, and 6E+0 represents 6x100 or 6.

Tables provided by the U.S. Nuclear Regulatory Commission:

Arsenic-73 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 (?Ci) Inhalation Air (?Ci/ml) Water (?Ci/ml) Monthly Average Concentration (?Ci/ml) ALI (?Ci) DAC (?Ci/ml) 33 Arsenic-73 W, all compounds 8E+3 2E+3 7E-7 2E-9 1E-4 1E-3 Cadmium-109 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 (?Ci) Inhalation Air (?Ci/ml) Water (?Ci/ml) Monthly Average Concentration (?Ci/ml) ALI (?Ci) DAC (?Ci/ml) 48 Cadmium-109 D, see 104Cd 3E+2 Kidneys 4E+1 Kidneys 1E-8 - - - (4E+2) (5E+1) - 7E-11 6E-6 6E-5 W, see 104Cd - 1E+2 Kidneys 5E-8 - - - - (1E+2) - 2E-10 - - Y, see 104Cd - 1E+2 5E-8 2E-10 - -

Calcium-45

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 (?Ci)	Inhalation		Air (?Ci/ml)	Water (?Ci/ml)	Monthly Average Concentration (?Ci/ml)
				ALI (?Ci)	DAC (?Ci/ml)
20	Calcium-45	W, all compounds	2E+3	8E+2	4E-7	1E-9	2E-5	2E-4

Carbon-14

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 (?Ci)	Inhalation		Air (?Ci/ml)	Water (?Ci/ml)	Monthly Average Concentration (?Ci/ml)
				ALI (?Ci)	DAC (?Ci/ml)
6	Carbon-14	Monoxide	-	2E+6	7E-4	2E-6	-	-
		Dioxide	-	2E+5	9E-5	3E-7	-	-
		Compounds	2E+3	2E+3	1E-6	3E-9	3E-5	3E-4

Cesium-137

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 (?Ci)	Inhalation		Air (?Ci/ml)	Water (?Ci/ml)	Monthly Average Concentration (?Ci/ml)
				ALI (?Ci)	DAC (?Ci/ml)
55	Cesium-137	D, all compounds	1E+2	2E+2	6E-8	2E-10	1E-6	1E-5

Chlorine-36

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 (?Ci)	Inhalation		Air (?Ci/ml)	Water (?Ci/ml)	Monthly Average Concentration (?Ci/ml)
				ALI (?Ci)	DAC (?Ci/ml)
17	Chlorine-36	D, chlorides of H, Li, Na, K, Rb, Cs, and Fr	2E+3	2E+3	1E-6	3E-9	2E-5	2E-4
		W, chlorides of lanthanides, Be, Mg, Ca, Sr, Ba, Ra, Al, Ga, In, Tl, Ge, Sn, Pb, As, Sb, Bi, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Tc, and Re	-	2E+2	1E-7	3E-10	-	-

Phosphorus-32

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 (?Ci)	Inhalation		Air (?Ci/ml)	Water (?Ci/ml)	Monthly Average Concentration (?Ci/ml)
				ALI (?Ci)	DAC (?Ci/ml)
15	Phosphorus-32	D, all compounds except phosphates given for W	6E+2	9E+2	4E-7	1E-9	9E-6	9E-5
		W, phosphates of Zn2+, S3+, Mg2+, Fe3+, Bi3+, and lanthanides	-	4E+2	2E-7	5E-10	-	-

Phosphorus-33

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 (?Ci)	Inhalation		Air (?Ci/ml)	Water (?Ci/ml)	Monthly Average Concentration (?Ci/ml)
				ALI (?Ci)	DAC (?Ci/ml)
15	Phosphorus-33	D, see 32P	6E+3	8E+3	4E-6	1E-8	8E-5	8E-4
		W, see 32P	-	3E+3	1E-6	4E-9	-	-

Rubidium-86

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 (?Ci)	Inhalation		Air (?Ci/ml)	Water (?Ci/ml)	Monthly Average Concentration (?Ci/ml)
				ALI (?Ci)	DAC (?Ci/ml)
37	Rubidium-86	D, all compounds	5E+2	8E+2	3E-7	1E-9	7E-6	7E-5

Selenium-75

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 (?Ci)	Inhalation		Air (?Ci/ml)	Water (?Ci/ml)	Monthly Average Concentration (?Ci/ml)
				ALI (?Ci)	DAC (?Ci/ml)
34	Selenium-75	D, see 70Se	5E+2	7E+2	3E-7	1E-9	7E-6	7E-5
		W, see 70Se	-	6E+2	3E-7	8E-10	-	-

Sulfur-35

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		Monthly Average Concentration (?Ci/ml)
			Oral Ingestion ALI (?Ci)	Inhalation		Air (?Ci/ml)	Water (?Ci/ml)
				ALI (?Ci)	DAC (?Ci/ml)
16	Sulfur-35	Vapor	1E+4 LLI wall	6E-6	2E-8	-	-
			(8E+3)	-	-	-	1E-4	1E-3
		W, elemental sulfur,	6E+3	-	-	-	-	-
		sulfides of Sr, Ba, Ge, Sn, Pb, As, Sb, Bi, Cu, Ag, Au, Zn, Cd, Hg, W, and Mo. Sulfates of Ca, Sr, Ba, Ra, As, Sb, and Bi	-	2E+3	9E-7	3E-9	-	-

Zinc-65

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 (?Ci)	Inhalation		Air (?Ci/ml)	Water (?Ci/ml)	Monthly Average Concentration (?Ci/ml)
				ALI (?Ci)	DAC (?Ci/ml)
30	Zinc-65	Y, all compounds	4E+2	3E+2	1E-7	4E-10	5E-6	5E-5