Radon metrology for use in climate change observation and radiation protection at the environmental level

Short Name: traceRadon, Project Number: 19ENV01
Image showing concept of radon danger
Danger of radon - concept image

Radon is a naturally occurring radioactive gas that can help locate the source of greenhouse gases

Radon gas is the main source of natural radiation exposure to the public and its environmental distribution must be known. It is emitted almost evenly from ice-free land allowing its use as a tracker for quantifying and pin-pointing the sources of greenhouse gas (GHG) emissions using the Radon Tracer Method (RTM). Improved quantification measurements are required to locate Radon Priority Areas (RPA) and for validating GHG emission models.


The project has developed traceable measurements for low-level atmospheric radon along with a reference-standard radon monitor, with results validated using long-term, field-based inter-comparisons. For the first time, a standard methodology for the RTM has been developed together with a validated, high-resolution radon flux map. RPAs will also be identified which has never been attempted before due to a lack of quality data.

The results will support radiation protection measures and GHG emission models, leading to increased safety and a better identification of the sources of damaging pollutants.


Project website
Inter-comparison of commercial continuous radon monitors responses

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Outdoor Radon as a Tool to Estimate Radon Priority Areas—A Literature Overview

International Journal of Environmental Research and Public Health

Development of 222Rn Emanation Sources with Integrated Quasi 2π Active Monitoring

International Journal of Environmental Research and Public Health

Intercomparison of Radon Flux Monitors at Low and at High Radium Content Areas under Field Conditions

International Journal of Environmental Research and Public Health

New metrology for radon at the environmental level

Measurement Science and Technology

Other Participants
Centralne Laboratorium Ochrony Radiologicznej (Poland)
IDEAS Science Korlátolt Felelősségű Társaság (Hungary)
INESC TEC - Instituto de Engenharia de Sistemas e Computadores, Tecnologia e Ciência (Portugal)
JRC - Joint Research Centre - European Commission (European Commission)
Lunds Universitet (Sweden)
Oesterreichische Agentur fuer Gesundheit und Ernaehrungssicherheit GmbH (Austria)
Státní ústav jaderné, chemické a biologické ochrany, v.v.i. (Czechia)
Universidad De Cantabria (Spain)
Universitat Politècnica de Catalunya (Spain)
Université de Versailles Saint-Quentin-en-Yvelines (France)
University of Bristol (United Kingdom)