Research and analysis

Ambient gamma radiation dose rates across the UK

Data received from fixed and mobile monitors measuring the ambient (background) gamma radiation dose rate across the UK.

• From: Department for Energy Security and Net Zero
• Published: 22 January 2013
• Last updated: 16 May 2025 — See all updates

Documents

April 2025: ambient gamma radiation dose rates across the UK from fixed monitors

CSV, 23.1 MB

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April 2025: ambient gamma radiation dose rates across the UK from mobile monitors

CSV, 31.8 MB

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March 2025: ambient gamma radiation dose rates across the UK from fixed monitors

CSV, 24 MB

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March 2025: ambient gamma radiation dose rates across the UK from mobile monitors

CSV, 33 MB

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February 2025: ambient gamma radiation dose rates across the UK from fixed monitors

CSV, 22.4 MB

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February 2025: ambient gamma radiation dose rates across the UK from mobile monitors

CSV, 29.4 MB

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January 2025: ambient gamma radiation dose rates across the UK from fixed monitors

CSV, 26.3 MB

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January 2025: ambient gamma radiation dose rates across the UK from mobile monitors

CSV, 33 MB

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2024: ambient gamma radiation dose rates across the UK, fixed and mobile monitor readings

ZIP, 41.5 MB

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2023: ambient gamma radiation dose rates across the UK, fixed and mobile monitor readings

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2022: ambient gamma radiation dose rates across the UK, fixed and mobile monitor readings

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2021: ambient gamma radiation dose rates across the UK, fixed and mobile monitor readings

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2020: ambient gamma radiation dose rates across the UK, fixed and mobile monitor readings

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2019: ambient gamma radiation dose rates across the UK, fixed and mobile monitor readings

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2018: ambient gamma radiation dose rates across the UK, fixed and mobile monitor readings

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2017: ambient gamma radiation dose rates across the UK, fixed and mobile monitor readings

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2016: ambient gamma radiation dose rates across the UK, fixed and mobile monitor readings

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2015: ambient gamma radiation dose rates across the UK

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2014: ambient gamma radiation dose rates across the UK

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2013: ambient gamma radiation dose rates across the UK

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2012: ambient gamma radiation dose rates across the UK

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2011: ambient gamma radiation dose rates across the UK

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2010: ambient gamma radiation dose rates across the UK

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Details

This data is received from fixed and mobile gamma radiation dose rate monitors and measures the ambient (or background) gamma radiation dose rate across the UK on an hourly basis.

From September 2022 onwards, dose rates are being made available from the Radiological Response and Emergency Management System (RREMS).

Dose rates from 2010 to September 2022 were available from the earlier Radioactive Incident Monitoring Network (RIMNET).

Elevated readings

The elevated readings, identified by red type in the ‘Max’ column of these files, are at a level which requires investigation. Each has been investigated and no specific reason found.

It is not unusual to have a small number of slightly elevated readings, often referred to as anomalies, which could be due to weather or power related factors, though the cause is often unknown. As no fault or reason was found, there is no justification for amending the readings on the RREMS database.

Published 22 January 2013

Last updated 16 May 2025 + show all updates

1. 16 May 2025

   Published the ambient gamma radiation dose rates across the UK from fixed and mobile monitors for April 2025.

2. 4 April 2025

   Published ambient gamma radiation dose rates across the UK from fixed and mobile monitors for March 2025.

3. 11 March 2025

   Added ambient gamma radiation dose rates across the UK from fixed and mobile monitors for February 2025.

4. 7 February 2025

   Added ambient gamma radiation dose rates across the UK from fixed and mobile monitors for January 2025.

5. 3 January 2025

   Added ambient gamma radiation dose rates across the UK from fixed and mobile monitors for December 2024.

6. 6 December 2024

   Added ambient gamma radiation dose rates across the UK from fixed and mobile monitors for November 2024.

7. 5 November 2024

   Added ambient gamma radiation dose rates across the UK from fixed and mobile monitors for October 2024.

8. 8 October 2024

   Added ambient gamma radiation dose rates across the UK from fixed and mobile monitors for September 2024.

9. 3 September 2024

   Added 'August 2024: ambient gamma radiation dose rates across the UK from fixed and mobile monitors'.

10. 14 August 2024

    Added ambient gamma radiation dose rates across the UK from fixed and mobile monitors for July 2024.

11. 9 July 2024

    Added ambient gamma radiation dose rates across the UK from fixed and mobile monitors for May and June 2024.

12. 14 May 2024

    Added ambient gamma radiation dose rates across the UK from fixed and mobile monitors for April 2024.

13. 10 April 2024

    Added ambient gamma radiation dose rates across the UK for fixed and mobile monitors, March 2024.

14. 19 March 2024

    Added February 2024: ambient gamma radiation dose rates across the UK from fixed and mobile monitors.

15. 15 February 2024

    Added January 2024 ambient gamma radiation dose rates across the UK from fixed and mobile monitors.

16. 18 January 2024

    Added December 2023: ambient gamma radiation dose rates across the UK from fixed and mobile RREMS monitors.

17. 11 December 2023

    Added November 2023: ambient gamma radiation dose rates across the UK from fixed and mobile RREMS monitors.

18. 7 November 2023

    Added October 2023: ambient gamma radiation dose rates across the UK from fixed and mobile RREMS monitors.

19. 12 October 2023

    Added ambient gamma radiation dose rates for fixed and mobile monitors, July to September 2023.

20. 4 August 2023

    Added ambient gamma radiation dose rates for fixed and mobile monitors April to June 2023.

21. 26 April 2023

    January, February and March fixed and mobile monitor rates added.

22. 13 March 2023

    Added July to December 2022 ambient gamma dose rate readings for mobile and fixed monitors.

23. 9 February 2023

    RIMNET has been replaced by the Radiological Response and Emergency Management System (RREMS).

24. 21 July 2022

    Added April to June 2022 ambient gamma dose rate readings for mobile and fixed monitors.

25. 26 April 2022

    Added: January-March 2022: ambient gamma radiation dose rates across the UK from fixed monitors January-March 2022: ambient gamma radiation dose rates across the UK from mobile monitors

26. 7 October 2021

    Added July to September 2021 ambient gamma dose rate readings for mobile and fixed monitors.

27. 3 August 2021

    Added April to June 2021 ambient gamma dose rate readings for mobile and fixed monitors.

28. 23 April 2021

    Added: January-March 2021: ambient gamma radiation dose rates across the UK from fixed monitors January-March 2021: ambient gamma radiation dose rates across the UK from mobile monitors

29. 21 January 2021

    October to December 2020 ambient gamma dose rate readings added for mobile and fixed monitors.

30. 9 October 2020

    July-September 2020 ambient gamma dose rate readings added for mobile and fixed monitors.

31. 14 July 2020

    April-June 2020 ambient gamma dose rate readings added for mobile and fixed monitors.

32. 16 April 2020

    RIMNET mobile data, January to March 2020 added.

33. 30 December 2019

    July to September 2019 mobile and fixed RIMNET data added.

34. 16 July 2019

    2019 Quarter 2 data for fixed and mobile monitors added.

35. 4 April 2019

    2019 Q1 data for fixed and mobile monitors added.

36. 10 January 2019

    2018 Quarters 3 and 4, 'Ambient gamma radiation dose rates across the UK' added

37. 23 July 2018

    Quarterly data for April to June 2018 (quarter 2 2018) published.

38. 18 June 2018

    Quarterly data for January to March 2018 published.

39. 19 October 2017

    Data for Q1 and Q2 2017 published.

40. 10 January 2017

    Q4 2016 ambient gamma radiation dose rates across the UK.

41. 22 January 2013

    First published.