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Facilitating the End of the Linear No-Threshold Model Era
1Diagnostic Imaging, Fox Chase Cancer Center, Philadelphia, Pennsylvania mohan.doss@fccc.edu.
Summary
The linear no-threshold (LNT) model for radiation risk is challenged by evidence supporting radiation hormesis. A public debate could shift policies, potentially reducing cancer risk and boosting innovation.
Area of Science:
- Radiation biology
- Public health policy
- Risk assessment
Background:
- The linear no-threshold (LNT) model has guided radiation protection policies globally since the 1950s.
- This model posits that any ionizing radiation exposure increases cancer risk.
- Emerging evidence suggests low-level radiation exposure may decrease cancer risk (radiation hormesis).

