Antinuclear

Australian news, and some related international items

New research backs the Linear No Threshold theory of ionising radiation

 

 Implications of recent epidemiologic studies for the linear nonthreshold model and radiation protection https://www.researchgate.net/publication/326387649_Implications_of_recent_epidemiologic_studies_for_the_linear_nonthreshold_model_and_radiation_protection

Article in Journal of Radiological Protection ·
Article in Journal of Radiological Protection · July 2018   Roy ShoreHarold Beck Jr. John D. Boice Lawrence Dauer        DOI: 10.1088/1361-6498/aad348
Abstract
The recently published NCRP Commentary No. 27 evaluated the new information from epidemiologic studies as to their degree of support for applying the linear nonthreshold (LNT) model of carcinogenic effects for radiation protection purposes [1].
The aim was to determine whether recent epidemiologic studies of low-LET radiation, particularly those at low doses and/or low dose rates (LD/LDR), broadly support the LNT model of carcinogenic risk or, on the contrary, demonstrate sufficient evidence that the LNT model is inappropriate for the purposes of radiation protection.
An updated review was needed because a considerable number of reports of radiation epidemiologic studies based on new or updated data have been published since other major reviews were conducted by national and international scientific committees. The Commentary provides a critical review of the LD/LDR studies that are most directly applicable to current occupational, environmental and medical radiation exposure circumstances.
This Memorandum summarizes several of the more important LD/LDR studies that incorporate radiation dose responses for solid cancer and leukaemia that were reviewed in Commentary No. 27. In addition, an overview is provided of radiation studies of breast and thyroid cancers, and cancer after childhood exposures. Non-cancers are briefly touched upon such as ischemic heart disease, cataracts, and heritable genetic effects.
To assess the applicability and utility of the LNT model for radiation protection, the Commentary evaluated 29 epidemiologic studies or groups of studies, primarily of total solid cancer, in terms of strengths and weaknesses in their epidemiologic methods, dosimetry approaches, and statistical modeling, and the degree to which they supported a LNT model for continued use in radiation protection. Recommendations for how to make epidemiologic radiation studies more informative are outlined. The NCRP Committee recognizes that the risks from LD/LDR are small and uncertain.
The Committee judged that the available epidemiologic data were broadly supportive of the LNT model and that at this time no alternative dose-response relationship appears more pragmatic or prudent for radiation protection purposes.

Implications of recent epidemiologic studies for the linear nonthreshold model and radiation protection | Request PDF. Available Implications of recent epidemiologic studies for the linear nonthreshold model and radiation protection | Request PDF. Available from: https://www.researchgate.net/publication/326387649_Implications_of_recent_epidemiologic_studies_for_the_linear_nonthreshold_model_and_radiation_protection [accessed Jul 20 2018].

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July 20, 2018 - Posted by | General News

3 Comments »

  1. Reblogged this on AGR Daily 60 Second News Bites.

    Comment by A Green Road Daily News | July 20, 2018 | Reply

  2. Thank you for this post.
    I noticed this related comment deadline which may be of interest: http://www.icrp.org/page.asp?id=391

    Comment by miningawareness | July 21, 2018 | Reply


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