Nebraska Administrative Code
Topic - HEALTH AND HUMAN SERVICES SYSTEM
Title 180 - CONTROL OF RADIATION
Chapter 4 - STANDARDS FOR PROTECTION AGAINST RADIATION
Appendix 4-G - CONCENTRATION AND ACTIVITY LIMITS OF NUCLIDES FOR DISPOSAL IN A CITY OR COUNTY LANDFILL DISPOSAL FACILITY

Universal Citation: 180 NE Admin Rules and Regs ch 4-G
Current through March 20, 2024

(For use in 180 NAC 4-038)

Nuclides

Concentration Limits (Ci/m3)

Annual Generator Disposal Limit (Ci/yr)

F-18

3E-1

8

Si-31

1E-2

3E+3

Na-24

9E-4

2E-2

P-32

2

5E+1

P-33

10

3E+2

S-35

9

2E+2

Ar-41

3E-1

8

K-42

2E-2

5E-1

Ca-45

4

1E+2

Ca-47

2E-2

5E-1

Sc-46

2E-3

5E-2

Cr-51

6E-1

2E+1

Fe-59

5E-3

1E-1

Co-57

6E-2

2

Co-58

1E-2

3E-1

Zn-65

7E-3

2E-1

Ga-67

3E-1

8

Se-75

5E-2

1

Br-82

2E-3

5E-2

Rb-86

4E-2

1

Sr-85

2E-2

5E-1

Sr-89

8

2E+2

Y-90

4

1E+2

Y-91

4E-1

10

Zr-95

8E-3

2E-1

Nb-95

8E-3

2E-1

Mo-99

5E-2

1

Tc-99m

1

3E+1

Rh-106

1

3E+1

Ag-110m

2E-3

5E-2

Cd-115m

2E-1

5

In-111

9E-2

2

In-113m

9

2E+2

Sn-113

6E-2

2

Sn-119

2E+1

5E+2

Sb-124

2E-3

5E-2

Te-129

2E-1

5

I-123

4E-1

1E+1

I-125

7E-1

2E+1

I-131

4E-2

1

I-133

2E-2

5E-1

Xe-127

8E-2

2

Xe-133

1

3E+1

Ba-140

2E-3

5E-2

La-140

2E-3

5E-2

Ce-141

4E-1

1E+1

Ce-144

1E-3

3E-2

Pr-143

6

2E+2

Nd-147

7E-2

2

Yb-169

6E-2

2

Ir-192

1E-2

3E-1

Au-198

3E-2

8E-1

Hg-197

8E-1

2E+1

TI-201

4E-1

1E+1

Hg-203

1E-1

3

In any case where there is a mixture in waste of more than one radionuclide, the limiting values for purposes of this Appendix must be determined as follows:

For each radionuclide in the mixture, calculate the ratio between the quantity present in the mixture and the limit established in Appendix 004-G for the specific radionuclide when not in a mixture. The sum of such ratios for all the radionuclides in the mixture may not exceed "1" or "unity".

Examples: If radionuclides a, b, and c are present in concentrations Ca, Cb, and Cc, and if the applicable concentrations are CLa, CLb, and CL c respectively, then the concentrations shall be limited so that the following relationship exists:

(Ca/CLa ) + (C b/CL b ) + (Cc/CLc) < 1

If the total curies for radionuclides a, b, and c are represented Aa, Ab, and Ac, and the annual curie limit for each radionuclide is ALa, ALb, and ALc, then the generator is limited to the following:

(Aa/AL a) + (Ab/AL=) + (A c/ALc) < 1

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