Since the Great East Japan Earthquake on 11 March 2011, Iitate Village has continued to be classified as a deliberate evacuation area, in which residents are estimated to receive an annual additional effective radiation dose of >20 mSv. Some companies still operate in Iitate Village, with a special permit from the Cabinet Office Team in Charge of Assisting the Lives of Disaster Victims. In this...

There have been several suggestions of biomarkers that are specific to high LET radiation. Such a biomarker could significantly increase the power of epidemiological studies of individuals exposed to densely-ionising radiations such as alpha particles (e.g. radon, plutonium workers, individuals exposed to depleted uranium) or neutrons (e.g. radiation workers, airline personnel. We discuss here ...

The increasing use of (sealed and nonsealed) beta radiation sources in medicine, industry and research implies the necessity of a metrologically reliable dose measurement in workers exposed to this type of radiation. The value of dose limits to be determined for occupational exposure in beta radiation fields is the equivalent dose on 1 cm2 of the evaluated skin, independently from the radiation...

The current radiation protection framework provides an adequate basis for protecting workers, the public and the environment. Nevertheless, international and national radiation protection organizations are presently engaged in updating, clarifying and enhancing radiation protection principles –and rightly so, given our culture of pursuing excellence in radiation safety through a process of cont...

Background Probability of causation (PC) is a reasonable way to estimate causal relationships in radiation-related cancer. This study reviewed the international trend, usage, and critiques of the PC method. Because it has been used in Korea, it is important to check the present status and estimation of PC in radiation-related cancers in Korea. Methods Research articles and official reports re...

We examined associations between low-level exposure to ionizing radiation and mortality among 14,095 workers hired at the Oak Ridge National Laboratory between 1943 and 1972. Workers at the facility were individually monitored for external exposure to ionizing radiation and have been followed through 1990 to ascertain cause of death information. Positive associations were observed between low-l...

Introduction: Radiation has a negative biologic effect, which depends on the duration of exposure and dose. This study aimed to assess knowledge of the principles of radiation protection among medical staff in educational hospitals in Bandar Abbas University of Medical Sciences. Materials and Methods: This descriptive cross-sectional study was carried out on 105 health workers who were exposed ...

There has been much debate about paternal pre-conceptual exposure to low level ionising radiation and possible increased risk of ill health among the children subsequently conceived. The prevalence of reported learning difficulties was examined in over 16000 children born to UK nuclear industry workers, using fathers' information on exposure from the workers' individual employment and dosimetry...

Some of the problems in determining the cancer risk of low-level radiation from studies of exposed groups are reviewed and applied to the study of Hanford workers by Mancuso, Stewart, and Kneale. Problems considered are statistical limitations, variation of cancer rates with geography and race, the "healthy worker effect," calendar year and age variation of cancer mortality, choosing from long ...