Research and analysis

Nuclear emergencies: information for the public

How radiation affects people, the consequences of a nuclear accident and the measures used to protect public health in the event of an accident.

• From: UK Health Security Agency
• Published: 1 November 2013
• Last updated: 28 September 2026
  Show all updates

  1. 28 September 2026

     UK average annual radiation dose updated from 2.7 mSv to 2.6 mSv.

  2. 25 May 2022

     Updated 'Nuclear emergencies: information for the public' and 'Basic concepts of radiation'.

  3. 1 November 2013

     First published.

Documents

Nuclear emergencies: information for the public

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Basic concepts of radiation

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This information is intended to support the operators of nuclear sites in providing information to the public.