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Report of the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2022
Since the establishment of the United Nations Scientific Committee on the Effects of Atomic Radiation by General Assembly resolution 913 (X) of 3 December 1955 the mandate of the Committee has been to undertake broad assessments of the sources of ionizing radiation and its effects on human health and the environment. In pursuit of this mandate this report presents the deliberations of the Committee at its Sixty-ninth session (9–13 May 2022).
Sources, Effects and Risks of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2020/2021 Report, Volume IV
The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) established by the General Assembly in 1955 assesses the levels and effects of exposure to ionizing radiation on human health and the environment. This is the last of four volumes of scientific annexes provide the supporting scientific deliberations for the UNSCEAR 2020/2021 report to the General Assembly. Annex D “Evaluation of occupational exposure to ionizing radiation” presents the estimated average annual effective and collective doses to workers for each major work sector and sub-sector involving the use of ionizing radiation; estimated worldwide level of occupational exposure for different sectors involving exposure to natural sources and to human-made sources of radiation; and analysis of temporal trends in occupational exposure. It is based on data provided by United Nations Member States and international organizations as well as peer reviewed literature and national reports on radiation exposure to workers.
Sources, Effects and Risks of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2020/2021 Report, Volume III
The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) established by the General Assembly in 1955 assesses the levels and effects of exposure to ionizing radiation on human health and the environment. This is the third of four volumes of scientific annexes provide the supporting scientific deliberations for the UNSCEAR 2020/2021 report to the General Assembly. Annex C “Biological mechanisms relevant for the inference of cancer risks from low dose and low-dose rate radiation” synthesizes the current knowledge on biological mechanisms of radiation actions at low doses and low-dose-rates and assesses the implications for understanding the processes of cancer development after exposure to ionizing radiation and for dose-response relationships of radiation-induced cancers.
Sources, Effects and Risks of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2020/2021 Report, Volume I
The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) established by the General Assembly in 1955 assesses the levels and effects of exposure to ionizing radiation on human health and the environment. This is the first of four volumes of scientific annexes that presents the supporting scientific deliberations for the UNSCEAR 2020/2021 report to the United Nations General Assembly. Annex A “Medical exposure to ionizing radiation” presents a comprehensive global estimate of the frequencies and doses from medical exposure their distribution and trends in medical categories in the 2009–2018 period. The annex considers four general categories of medical practice using ionizing radiation: (a) diagnostic radiology including dental radiology and computed tomography (b) interventional radiology (image-guided interventional procedures) (c) nuclear medicine and (d) radiation therapy.
Sources, Effects and Risks of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2020/2021 Report, Volume II
The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) established by the General Assembly in 1955 assesses the levels and effects of exposure to ionizing radiation on human health and the environment. This is the second of four volumes of scientific annexes that provides the supporting scientific deliberations for the UNSCEAR 2020/2021 report to the United Nations General Assembly. Annex B “Levels and effects of radiation exposure due to the accident at the Fukushima Daiichi Nuclear Power Station: implications of information published since the UNSCEAR 2013 Report” summarizes all relevant scientific information (peer reviewed literature and monitoring data) available up to the end of 2019. These data relate to the levels and effects of radiation exposure due to the accident at the Fukushima Daiichi Nuclear Power Station. The aim of the report is to provide a summary of all scientific information and an appraisal of the implications of this information for the UNSCEAR 2013 Report.
Sources, Effects and Risks of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2019 Report
Report of the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2018
Since the establishment of the United Nations Scientific Committee on the Effects of Atomic Radiation by General Assembly resolution 913 (X) of 3 December 1955 the mandate of the Committee has been to undertake broad assessments of the sources of ionizing radiation and its effects on human health and the environment. In pursuit of this mandate this report presents the deliberations of the Committee at its Sixty-fifth session (11-14 June 2018).
Sources, Effects and Risks of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2017 Report
The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) assesses the levels and effects of exposure to ionizing radiation. UNSCEAR’s scientific findings underpin radiation risk evaluation and international protection standards. The scientific annexes provide the supporting scientific rationale for UNSCEAR’s 2017 report to the General Assembly. Annex A provides the principles and criteria for ensuring the quality of the Committee's reviews of epidemiological studies of radiation exposures with a focus on the assessment of strengths and limitations of such studies. Annex B evaluates epidemiological studies analysing cancer risk on the basis of individual doses due to exposure to low dose rates from environmental sources including key limitations of such studies (e.g. statistical power dosimetric uncertainty and confounding).
Sources, Effects and Risks of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2016 Report
The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) assesses the levels and effects of exposure to ionizing radiation. UNSCEAR’s scientific findings underpin radiation risk evaluation and international protection standards. This report comprises a report to the General Assembly with two underpinning scientific annexes. The first annex recapitulates and clarifies the philosophy of science as well as the scientific knowledge for attributing observed health effects in individuals and populations to radiation exposure and distinguishes between that and inferring risk to individuals and populations from an exposure. The second annex reviews the latest thinking and approaches to quantifying the uncertainties in assessments of risk from radiation exposure and illustrates these approaches with application to examples that are highly pertinent to radiation protection. The report is a landmark publication in terms of our understanding of the confidence that can be attached to the attribution of health effects in individuals and populations and to the estimation of risks inferred from exposure to ionizing radiation.
Report of the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2015
Since the establishment of the United Nations Scientific Committee on the Effects of Atomic Radiation by General Assembly resolution 913 (X) of 3 December 1955 the mandate of the Committee has been to undertake broad assessments of the sources of ionizing radiation and its effects on human health and the environment. In pursuit of this mandate this report presents the deliberations of the Committee at its Sixty-second session (1-5 June 2015).
Sources, Effects and Risks of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2012 Report
The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) assesses the levels and effects of exposure to ionizing radiation. UNSCEAR’s scientific findings underpin radiation risk evaluation and international protection standards. This report comprises a report to the General Assembly with two underpinning scientific annexes. The first annex recapitulates and clarifies the philosophy of science as well as the scientific knowledge for attributing observed health effects in individuals and populations to radiation exposure and distinguishes between that and inferring risk to individuals and populations from an exposure. The second annex reviews the latest thinking and approaches to quantifying the uncertainties in assessments of risk from radiation exposure and illustrates these approaches with application to examples that are highly pertinent to radiation protection. The report is a landmark publication in terms of our understanding of the confidence that can be attached to the attribution of health effects in individuals and populations and to the estimation of risks inferred from exposure to ionizing radiation.
Report of the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2014
Since the establishment of the United Nations Scientific Committee on the Effects of Atomic Radiation by General Assembly resolution 913 (X) of 3 December 1955 the mandate of the Committee has been to undertake broad assessments of the sources of ionizing radiation and its effects on human health and the environment. In pursuit of this mandate this report presents the deliberations of the Committee at its sixty-first session.
Sources, Effects and Risks of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2013 Report, Volume I
Sources, Effects and Risks of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2013 Report, Volume II
The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) assesses the levels and effects of exposure to ionizing radiation. UNSCEAR’s scientific findings underpin radiation risk evaluation and international protection standards. This is the second of two parts of scientific annexes that provide the supporting scientific assessment for UNSCEAR’s 2013 report to the General Assembly. This scientific annex on “effects of radiation exposure of children” provides a detailed review of scientific material that deals with special aspects of radiation dosimetry in children cancer incidence after radiation exposure in childhood and the direct effects that occur after high doses (deterministic health effects). It examines the differences between the effects occurring after radiation exposure in childhood and those in adulthood.
Sources and Effects of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2008 Report, Volume II
The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) assesses the levels and effects of exposure to ionizing radiation. UNSCEAR's scientific findings underpin radiation risk evaluation and international protection standards. This is the second of two volumes of scientific annexes that provide the supporting scientific assessment for UNSCEAR's 2008 Report to the General Assembly. It contains three scientific annexes. Radiation exposures in accidents aims to provide a sound basis for conclusions regarding the number of significant radiation accidents that have occurred the corresponding levels of radiation exposures and numbers of deaths and injuries and the general trends for various practices. Health effects due to radiation from Chernobyl accident provides updated estimates of exposures of workers and the population and an authoritative review of the early and late health effects observed that are due to radiation exposure.
Report of the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2011
Since the establishment of the United Nations Scientific Committee on the Effects of Atomic Radiation by General Assembly resolution 913 (X) of 3 December 1955 the mandate of the Committee has been to undertake broad assessments of the sources of ionizing radiation and its effects on human health and the environment. In pursuit of this mandate this report presents the deliberations of the Committee at its fifty-eighth session (23-27 May 2011).
Report of the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2010
Official Records of the Report of the United Nations Scientific Committee on the Effects of Atomic Radiation: Fifty-seventh session (16-20 August 2010).
Sources and Effects of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2008 Report, Volume I
Exposure to radiation has origins such as medical diagnosis and therapeutic procedures; nuclear weapons production and testing; as well as occupations that entail increased exposure to artificial or naturally occurring sources of radiation. Since the establishment on of the United Nations Scientific Committee on the Effect of Atomic Radiation the mandate of the committee has been to undertake board reviews of the sources of ionizing radiation and of the effects of that radiation on human health and the environment. The committee last made estimates of radiation levels and trends in its 2000 report. The present report updates and extends those estimates.
Effects of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2006 Report, Volume II
The purpose of this annex is to summarize the literature on non-targeted effects associated with exposure to ionizing radiation and where possible to evaluate how such effects may affect risks associated with radiation exposure the understanding of radiation-induced carcinogenesis and the mechanistic basis for interpreting epidemiological data on radiation effects.
Effects of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2006 Report, Volume I
The wide readership of this book by individuals government officials scientists and medical specialists is due to concern about the possible hazards of natural and man-made sources of radiation. This publication presents the consequences of exposures to radiation by the use of radiobiological research and results of epidemiological studies. It also summarizes and evaluates sources of human radiation exposures discusses principal features of radiation risk perception and gives a brief summary and indication of perspectives. Volume 1 comprises the main text of the 2006 report to the General Assembly and 2 scientific annexes: Annex A - Epidemiological studies of radiation and cancer; and Annex B - Epidemiological evaluation of cardiovascular disease and other non-cancer diseases following radiation exposure.