United Nations Scientific Committee on the Effects of Atomic Radiation

President: Santiago Makoszay Castañón

Chair: Bruno González Aguirre, Rodrigo Arroyo Oropeza y Ximena Bretón de la Torre

Topic A) Measures to ensure radiation protection in case of a nuclear reactor accident. A study based on novel information on the effects and risks of radiation exposure due to the accident at the Fukushima Daiichi nuclear power station

Topic B) Assessment of the biological mechanisms relevant to the inference of cancer risk after exposure to low-dose radiation




Committee's outline and faculties

Established in 1955 by the General Assembly, the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) is to the task of assessing and reporting levels and effects of exposure to ionizing radiation. As such, national governments and institutions rely on the Committee’s scientific determinations regarding radiation risk to authorize protective measures. In order to fulfill its objectives, the General Assembly designated 27 countries to provide the scientists that will research the information submitted by Member States and both, international and non-governmental organizations. Each year the Secretariat, whose siege is in Vienna linked to UN Environment, organizes the sessions and manages the documents that will be scrutinized. 


Representing a world authority on global levels and effects of ionizing radiation, UNSCEAR reviews new information and synthesizes it in a coherent report useful for policymakers and other stakeholders. Within its mandate, the committee is requested to:

  • Receive and assemble in a useful form reports on levels of ionizing radiation present in the environment, as well as reports on the effects.

  • Recommend uniform standards in regards to procedures for collection and counting of radioactive material in sample analysis.

  • Make yearly progress on conclusions obtained from the reports received on levels and effects of ionizing radiation in humans and their environment, as well as transmitting them for publication.