This sure sounds like a joke:
- Internationally, a material is not classified as a radioactive material until it has a radionuclide activity concentration of 70 Becquerels/gram.
- In the European Community the unconditional release limit for materials containing radium is 10 Bq/g
- In the United States, levels are much more conservative ... at less than 0.37 Bq/g.
- In Canada, unconditional release limits are among the lowest in the world with unconditional release granted if the activity level is 0.30 Bq/g or less.
Material with up to 1 Bq/g of activity may be acceptable for release if radiological assessments indicate that the way in which it is used will not result in any greater amount of exposure than if it were 0.30 Bq/g or less.
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The coffee you drank this morning?
About 1 Bq/g
Fertilizer on your lawn?
2.2 Bq/g
Your campfire wood?
3.4 Bq/g
The Human Body?
About 4 Bq/g
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If you live in the US or Canada, your kids are worse than radioactive waste!