Update on Linear No-Threshold (LNT) Research-Chapter 2 by Prof. Edward Calabrese, PhD

This is an objection to the toxicologists discussion of possible impacts of low level exposure.

The Linear Non-Threshold (LNT) dose-response model is a commonly used model in radiation protection that predicts the health risks associated with low doses of ionizing radiation. The LNT model assumes that there is no safe threshold dose for radiation exposure and that even very low doses of radiation can increase the risk of cancer and other radiation-related health effects.

The LNT model is based on the idea that radiation-induced DNA damage is cumulative and that any additional damage increases the risk of cancer. The model assumes that the risk of cancer is directly proportional to the amount of radiation received, regardless of the dose level. In other words, the risk of cancer increases linearly with increasing radiation dose, without any threshold dose below which there is no risk.

The LNT model has been used as the basis for setting radiation exposure limits and guidelines for occupational and public radiation protection. However, it is also a topic of ongoing debate and controversy in the scientific community, with some researchers suggesting that the model may overestimate the risks of low-dose radiation exposure.

Critics of the LNT model argue that it is not based on direct evidence and that the risks of low-dose radiation exposure may be overestimated. Some studies have suggested that low doses of radiation may even have a protective effect against cancer, a phenomenon known as radiation hormesis. Nevertheless, the LNT model remains the default model for radiation protection and is widely used by regulatory agencies and researchers in the field.

In short the data is not conclusive and we should not be spending as much on the possible benefits of suspect data.