Sources, Effects and Risks of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2019 Report

This publication comprises a report to the General Assembly with two underpinning scientific annexes. The first annex provides an evaluation of selected health effects and inference of risk due to radiation exposure describing five scenarios for risk evaluation. The annex presents quantitative risk estimates based on major recent epidemiological studies and on the effects found among survivors of atomic bombings in Japan. The second annex evaluates lung cancer from exposure to radon and provides information to assess recent developments in risk estimates of lung cancer and radon exposure, and to convey an up-to-date picture of radon dosimetry and of dose conversion factors applied for dose assessment.