Problems with Cobalt-60
All ionizing radiation, including that of cobalt-60, is known to cause cancer. Therefore, exposures to gamma radiation from cobalt-60 result in an increased risk of cancer. Because it emits such strong gamma rays, external exposure to cobalt-60 is also considered a significant threat. The magnitude of the health risk depends on the quantity of cobalt-60 involved and on exposure conditions:
- length of exposure
- distance from the source (for external exposure)
- whether the cobalt-60 was ingested or inhaled
Other Problems include:
- There are radioactive waste materials produced during the process of producing Cobalt-60
- It is difficult to dispose of spent Cobalt-60 because it has a half life of 5.3 years.
- Arguments say it does not always kill all the harmful bacteria but does destroy vitamins
- External exposure to large sources of Cobalt-60 can cause skin burns, radiation sickness or death. Most Co-60 that is ingested is excreted in the feces; however, a small amount is absorbed by the liver, kidneys, and bones.
- Prolonged exposure to airborne particles may result in coughing, gasping, and respiratory sensitivity.