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The LNT Issue Is About Politics and Economics, Not Safety.

Jerry M Cuttler1

  • 1Cuttler & Associates Inc, Vaughan, Ontario, Canada.

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|September 21, 2020
PubMed
Summary

The Sykes commentary suggests a graded approach to low-dose ionizing radiation protection, advocating for the threshold model over the linear no-threshold (LNT) model. This overlooks historical low-dose therapies and evidence supporting threshold effects, potentially impacting public health and nuclear energy.

Keywords:
LNT modelionizing radiationlow-dose radiation medical therapiesnuclear energyprecautionary principleradiophobia

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Area of Science:

  • Radiation biology
  • Risk assessment
  • Public health policy

Background:

  • The linear no-threshold (LNT) model, linking low-dose ionizing radiation to cancer risk, is widely used in regulatory policy.
  • The Sykes commentary proposes a shift towards a threshold model for radiation protection, urging acceptance of regulatory use.
  • This commentary omits historical context of low-dose radiation therapies and scientific evidence for threshold effects.

Purpose of the Study:

  • To critically evaluate the Sykes commentary's advocacy for a threshold model in low-dose radiation protection.
  • To highlight the historical and scientific evidence disregarded by the commentary, particularly regarding low-dose therapies and established thresholds.
  • To discuss the potential negative consequences of the LNT model's politicization and its impact on public health and nuclear energy.

Main Methods:

  • Literature review of historical low-dose radiation treatments and scientific studies on radiation dose-response.
  • Analysis of the Sykes commentary's arguments, identifying omissions and scientific inaccuracies.
  • Examination of the historical development and impact of the LNT model and radiation scares.

Main Results:

  • Evidence exists for therapeutic applications of low-dose radiation in treating various diseases, including cancers, over the past 120 years.
  • Published data indicate a threshold at 1.1 Gy for radiogenic leukemia and a dose-rate threshold around 0.6 Gy/year for lifespan shortening.
  • The LNT model's origins are linked to politicized science, leading to a 'cancer scare' that damaged public welfare and hindered nuclear energy development.

Conclusions:

  • The Sykes commentary's call for a graded approach and threshold model overlooks significant historical and scientific data on low-dose radiation.
  • The politicization of radiation science, particularly the LNT model, has had detrimental effects on public health, medical treatments, and the nuclear industry.
  • Revisiting the role of low-dose radiation, including its therapeutic potential (e.g., for lung inflammation and COVID-19), is crucial for informed policy and public well-being.