Radiation: emergency reference levels

This document (Documents of the NRPB volume 1 number 4) includes emergency reference levels and information on radon in Devon and Cornwall.


Documents of the NRPB volume 1 number 4: Board statement on emergency reference levels

This file may not be suitable for users of assistive technology. Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email Please tell us what format you need. It will help us if you say what assistive technology you use.


This document includes the following:

  • a statement by the National Radiological Protection Board on principles for the protection of the public and workers in the event of accidental releases of radioactive materials into the environment and other radiological emergencies

  • emergency reference levels of dose for early countermeasures to protect the public: recommendations for the practical application of the Board’s statement

  • radon affected areas: Cornwall and Devon

Published 13 July 2012