[Features of radiation carcinogenesis in man at low doses and low dose rates]

The accepted linear no-threshold (LNT) dose response for stochastic effects is not valid even for the cellular level. Published data on the human radiation carcinogenesis demonstrate now the radiation hormesis or the absence of effects or its reduction in the whole low dose interval when a dose rate is decreased. This is demonstrated for leukemia and for lung, breast, thyroid, bone, skin and liver solid cancers, for such organs, which are responsible in the more, than 1/2 of cancer detriment postulated by the ICRP. It is possible valid for the whole of solid cancers and for nontumorogenic death.