Radon in Belgium
Official radon data, regulations and resources
National reference level
300 Bq/m³
Competent authority
What should you do?
Regardless of the official classification, the only way to know the radon level in a specific building is to measure it. A long-term test (at least 3 months) is recommended. You can either test yourself with passive detectors or hire a certified professional.
Regulations & obligations
Dwellings
Reference level of 300 Bq/m³ as per EU Directive 2013/59/Euratom. Belgium has regional competencies for radiation protection.
Workplaces
Workplaces must comply with 300 Bq/m³ reference level. Regional authorities implement controls.
Public buildings & schools
Public buildings should comply with 300 Bq/m³ reference level under regional supervision.
New construction
Prevention measures required in new buildings in identified radon-prone areas.
Professional services
FANC-Approved Radon Measurement Organizations
FANC-approved and BELAC-accredited (ISO/IEC 17025) organizations for radon measurement
Accredited by: FANC
Approved Radiation Protection Experts
FANC-approved radiation protection experts for workplace radon assessment
Accredited by: FANC
Radon Remediation Companies
Radon remediation companies, primarily active in Wallonia and parts of Flanders
How to test for radon yourself
Regardless of where you live, testing for radon is easy and affordable. A long-term measurement with passive detectors is the most reliable way to know your indoor radon level.
Learn how to testMajor Cities
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