Category Archives: LNT

Radiation, ecology and the invalid LNT Model: The evolutionary imperative

(Sep. 27, 2006) Metabolic and energetic efficiency, and hence fitness of organisms to survive, should be maximal in their habitats. This tenet of evolutionary biology invalidates the linear-nothreshold (LNT) model for the risk consequences of environmental agents. Continue reading

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Radiation, Ecology and the Invalid LNT Model: The Evolutionary Imperative

(September 27, 2006) Metabolic and energetic efficiency, and hence fitness of organisms to survive, should be maximal in their habitats. This tenent of evolutionary biology invalidates the linear-nothreshold (LNT) model for the risk consequences of environmental agents. Continue reading

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NCRP Report No. 136 – How to ignore data that contradict the LNT hypothesis

(Jun. 14, 2006) The International Commission for Radiological Protection (ICRP) adopted the linear nonthreshold model of radiation risk to simplify the administration of radiation protection. (ICRP 1977) At that time there were already several good epidemiological studies that contradicted the assumption. It had been known since 1973 (Frigerio, et. al.) that the 7 western U.S. states with the highest background radiation have cancer death rates 15% lower than the average for the 48 contiguous states (P<10-5). Continue reading

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NCRP Report No. 136 – How to ignore data that contradict the LNT hypothesis

(June 14, 2006) The International Commission for Radiological Protection (ICRP) adopted the linear nonthreshold model of radiation risk to simplify the administration of radiation protection. (ICRP 1977) At that time there were already several good epidemiological studies that contradicted the assumption. Continue reading

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DOE’s Letter of Concern About BEIR 7 Report

(July 15, 2005) “..between the BEIR 5 Report of 1990 and last year, new and exciting biological research has been published demonstrating that cell in tissues respond very differently to radiation than isolated cells in culture and that cellural responses to low doses of radiation are very different from responses to high doses of radiation.” Continue reading

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DOE’s letter of concern about BEIR 7 report

(Jul. 15, 2005) “..between the BEIR 5 Report of 1990 and last year, new and exciting biological research has been published demonstrating that cell in tissues respond very differently to radiation than isolated cells in culture and that cellural responses to low doses of radiation are very different from responses to high doses of radiation.” Continue reading

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Nuclear shipyard worker study (1980–1988): a large cohort exposed to low-dose-rate gamma radiation

(June 2, 2005) A summary of the 1991 Final Report of the Nuclear Shipyard Worker Study (NSWS), a very comprehensive study of occupational radiation exposure in the US. The NSWS compared three cohorts: a high-dose cohort of 27,872 nuclear workers, a low dose cohort of 10,348 workers, and a control cohort of 32,510 unexposed shipyard workers. Continue reading

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