At very low doses of radiation, the probability of stochastic effects is considered to be:

At very low doses of radiation, the probability of stochastic effects is considered to be unlikely primarily due to the nature of how these effects manifest. Stochastic effects, such as cancer and genetic mutations, arise randomly and their occurrence is statistically linked to the dose received. At low doses, the likelihood of such effects is significantly diminished because the energy deposited in biological tissues is insufficient to cause the necessary changes in cellular structures or DNA that lead to these outcomes.

The principles of radiation safety and risk assessment acknowledge that as the dose of radiation increases, so does the probability of these stochastic effects. However, at very low levels of exposure, the body's natural repair mechanisms, as well as the low probability of cellular damage, contribute to the assessment that the risk is unlikely. Thus, while even very low doses carry some level of stochastic risk, it is considered relatively small, leading to the conclusion that at these doses, stochastic effects are unlikely to occur. This understanding is fundamental in guiding radiation protection policies and safety standards.