Welcome to the UNSCEAR
United Nations
Scientific Committee on the Effects of Atomic Radiation
Evaluating Science for Informed Decision Making
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Fourth Committee adopts draft resolution on the effects of atomic radiation
UNSCEAR chair S. Baatout presents the Scientific Committee’s work to the UN General Assembly; Resolution on Effects of Atomic Radiation adopted unanimously.
2025-12-05
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70th anniversary of UNSCEAR
2025-12-03
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Committee and observers convene for the 72nd Session
Over 160 experts of the Committee and observers are convening in Vienna for the 72
nd
Session to review progress on evaluations of cancer epidemiology, diseases of the circulatory system, nervous system effects, data collection and future programme of work.
2025-06-17
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UNSCEAR at the 2024 European Radiation Research Society
UNSCEAR Chair (S Baatout) and Vice-Chair (A. Auvinen) successfully presented the ongoing and future programme of work of the Committee at the 2024 European Radiation Research Society conference in Portugal
2024-09-18
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Upcoming events
27/04/2026
ICRP Webinar: Lessons for radiological protection from the Chornobyl NPP and Fukushima
Daiichi accidents
03/12/2025
70th Anniversary of UNSCEAR
Mandate
Annual Sessions
The Scientific Committee
Areas of Work
UNSCEAR Global Surveys
Publications
Latest Publications
12/02/2026
UNSCEAR 2024 Report Volume II
The
UNSCEAR 2024 Report Volume II
is comprised of the main text of the 2024 report to the
General Assembly
(A/79/46) and one scientific annex.
Annex B:
Evaluation of public exposure to ionizing radiation
30/05/2025
UNSCEAR 2024 Report Volume I
The
UNSCEAR 2024 Report Volume I
is comprised of the main text of the 2024 report to the
General Assembly
(A/79/46) and one scientific annex.
Annex A:
Second primary cancer after radiotherapy
30/08/2022
UNSCEAR 2020/2021 Report Volume IV
The
UNSCEAR 2020/2021 Report Volume IV
is comprised of one scientific annex.
Annex D -
Evaluation of occupational exposure to ionizing radiation
04/05/2022
UNSCEAR 2020/2021 Report Volume I
The
UNSCEAR 2020/2021 Report Volume I
is comprised of the main text of the 2021 report to the
General Assembly
(A/76/46) and one scientific annex.
Annex A:
Evaluation of medical exposure to ionizing radiation
Latest News
12/02/2026
UN scientific report confirms natural background radiation remains the dominant source
of public exposure worldwide
03/12/2025
70th Anniversary of UNSCEAR
12/06/2025
PRESS RELEASE - UN report highlights long-term cancer risks following radiotherapy
25/03/2025
31st Conference of the Nuclear Societies in Israel, INS31
24/11/2024
6th International Conference on Radioecology & Environmental Radioactivity (ICRER
2024) in Marseille, France
21/10/2024
Presentation of the Committee’s report at the 79th UNGA, 21 Oct 2024, New York
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