Abstract
Thresholds are antithetical to the LNT. There is no physical or chemical agent that does not exhibit a toxic threshold in humans, including ionizing radiation. Too little or too much radiation are harmful. Ignoring radiation thresholds and the hormesis dose range is detrimental to health. All alpha, beta and gamma emitting radionuclides have thresholds for cancer induction in animals and humans. The cellular mechanisms of hormesis are similar to those seen for caloric restriction, but very different than mechanisms seen for high radiation doses.
The greatest tragedy of science is the slaying of a beautiful hypothesis by an ugly fact (T.H. Huxley).
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Notes
- 1.
Department of Energy, DOE Low Dose Program, 2014.
- 2.
NCRP-121, 1995.
- 3.
NCRP-136, 2001.
- 4.
French Academy of Medicine, 2001.
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Sanders, C.L. (2017). Thresholds. In: Radiobiology and Radiation Hormesis . Springer, Cham. https://doi.org/10.1007/978-3-319-56372-5_4
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