Low dose radiation cancer 2x worse than predicted by LNT model

In a multinational cohort study, researchers evaluated the risk of cancer mortality after protracted low dose exposure to ionising radiation in workers in France, the UK, and the US. The study included 309,932 workers with a total follow-up of 10.7 million person years. They found that the rate of mortality due to solid cancer increased by 52% per gray (Gy) of radiation dose, lagged by 10 years. The study also suggested that the association between low dose exposure and solid cancer mortality is larger than currently estimated. These findings can inform radiation protection measures for low dose exposures in various settings.


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