A Standardized Individual Dose System for Epidemiology of Public and Workers by “Universal Radiation Protection System Hypothesis”

Epidemiologic studies of public or workers at low doses of ionizing radiation based on total effective dose a person receives as a member of public in daily life or as a worker with additional dose in radiation work can provide the necessary basis for estimating consistent human health risks for setting radiation protection standards. Efforts have been in progress over the past few decades by the world radiation protection and epidemiology experts on the estimates of human health risks at low doses of ionizing radiation to support either the linear-no-threshold (LNT) hypothesis or any other models such as hormesis model. Some major epidemiology studies have been performed or in progress such as on public exposure due to environmental natural background (NBG) radiation [1-5] or on occupational exposure from man-made sources for example on the US Million Nuclear Workers Study [6] and on the International Nuclear Worker Study (INWORKS) [7], as well as occupational ionizing radiation risk of basal cell carcinoma in US radiologic technologists (1983-2005) [8].