What does the Linear Non-Threshold Hypothesis assume?

The Linear Non-Threshold Hypothesis posits that any amount of exposure to ionizing radiation carries some level of risk for causing harmful biological effects, such as cancer. This concept suggests that risks increase linearly with the dose of radiation, without any threshold below which no risk exists. In essence, the hypothesis implies that even very low levels of exposure can contribute to potential health effects, although the risk may be significantly low.

This understanding is crucial in radiation protection and safety practices, as it emphasizes the importance of minimizing exposure to radiation as much as possible. It supports the principle of keeping doses as low as reasonably achievable (ALARA), guiding decision-making regarding radiation use in various fields, including medicine and industry.

In contrast, the other options suggest a notion of safety or harmlessness at certain levels of exposure, which contradicts the essence of the Linear Non-Threshold Hypothesis.