The LNHB coordinates the European metrology project on radon, RadonNET (23IND07). In compliance with Directive 2013/59/Euratom, member states are required to mitigate ²²²Rn activity concentration in public and private buildings, where levels regularly exceed the reference threshold of 300 Bq·m⁻³. Authorities are mandated to implement mitigation strategies that adhere to basic safety standards, ensuring the protection of citizens from ionising radiation exposure caused by ²²²Rn progenies.

This project addresses the challenge of quantifying ²²²Rn activity concentrations indoors, particularly in large buildings designed for future cities, with an emphasis on connected, low-energy consumption structures. The development of methods and sensors for detecting radon activity concentrations, along with the creation of a quality-assured sensor network, will enhance on-site ²²²Rn metrology and provide essential support to the European radiation protection industry.

• Link to RadonNet website: http://radon-network.eu/
• Link to EURAMET webpage: https://www.euramet.org/research-innovation/search-research-projects/details/project/radon-metrology-sensor-networks-for-large-buildings-and-future-cities