Radiation safety - radon gas in the workplace

Technical guidance and resources for exposure to naturally occurring radioactive radon gas in the work place (much of this resource will also be of relevance for domestic radon exposure). 

  • Radon gas dose rate calculator

    Published: Jun 27, 2025

    Source: Ionactive Radiation Protection Resources. Calculator programming by Chris Robbins of Grallator, article resource by Ionactive

      Tags:
    • Radon gas
    • Rn-222
    • Radon
    • Radon exposure
    • Radon dose rate
    • Radon gas effective dose
    • Radon risk assessment
    • effective dose
    • equivalent dose
    • Ionising Radiations Regulations 2017
    • IRR17
    • HSE Radon notification
    • UNSCEAR
    • ICRP
    • ICRP 126
    • ICRP 137

    Radon gas measurements in the UK are expressed as activity per unit volume (e.g. Bq per cubic metre of air). It is often useful to express this radon concentration as a dose or dose rate (micro Sv or micro Sv/h), which can then be used to present and compare radon exposure risk with something more tangible (like cosmic radiation during a flight at 40,000 feet). This calculator will do just that. 

    Ionactive radon dose rate calculator widget
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