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Disposal of Radioisotopes

Disposal limits for radioisotopes ensure that no member of the public is exposed to any significant quantity of radioisotope. All waste is to be brought to the Environmental Safety Facility (ESF) located at ESC Rm. 150

Liquid Waste

  1. Liquid waste is to be separated according to isotope, placed in a 4L Jug supplied by the Environmental Safety Facility (ESF).
  2. Containers must not be more than 80% full.
  3. No solid waste in the containers.
  4. Containers are to be marked with a Radioactive Waste Label. 

Solid Waste

  1. Solid waste is to be separated according to isotope, placed in a 20 L Pails lined with a 6 mil poly bag supplied by the Environmental Safety Facility (ESF).
  2. Remove or deface any radioactive Warning Labels on waste.
  3. Place sharps(needles, razors etc.) in a separate Sharps contaner.
  4. Containers must be closed tightly.
  5. No liquid waste in the containers.
  6. Containers are to be marked with a Radioactive Waste Label. 
  7. Solid waste less than limits listed in table below may be disposed of in regular garbage.

Scintillation Vials

  1. Scintillation vials are to be placed in 20 L Pails lined with a 6 mil poly bag supplied by the Environmental Safety Facility (ESF). Vials can be of any isotopes.
  2. Pails must be closed tightly.
  3. Containers are to be marked with a Radioactive Waste Label. 

Radionuclide

Disposal Limits

Solid Waste
MBq/kg

Solid Waste
uCi/kg

Liquid Waste
MBq/L

 Liquid Waste
uCi/L

C-14

3.7

 100

 100

 2700

Cr-51

3.7

 100

1

 27
Fe-59 0 0 0 0

H-3

37

 1000

1000

 27000

I-125

0.037

 1

1

 27

I-131

0.037

 1

1

 27

P-32

0.37

 10

0.01

 0.27

P-33

1

 27

1

 27

S-35

0.37

 10

100

 2700