Radon in Denmark

Official radon data, regulations and resources

National reference level

100 Bq/m³

Competent authority

Danish Health Authority (Sundhedsstyrelsen)

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.

Learn how to test

Regardless of where you live, testing for radon is easy and affordable. A long-term measurement with

Hire a professional

Professionals near you→

Mitigation options

Radon mitigation is the set of building techniques used to reduce indoor radon concentrations. Prope

Regulations & obligations

Dwellings

Reference level of 100 Bq/m³ as an annual average, valid in all buildings. In homes built before 2010, simple improvements are recommended between 100 and 200 Bq/m³ and more effective measures above 200 Bq/m³.

Workplaces

Reference level of 100 Bq/m³. Above it the employer must optimise exposure and run a radiological surveillance programme accepted by the Danish Health Authority.

Public buildings & schools

The 100 Bq/m³ reference level applies to premises open to the public, schools and kindergartens included.

New construction

Limit value of 100 Bq/m³: every building constructed under the Building Regulations of 2010 or later must stay below it (BR18).

Professional services

Radon Measurement Companies

Testing & Measurement

Companies performing radon measurement under Sundhedsstyrelsen protocols

Accredited by: Sundhedsstyrelsen

Professionals near you

Radon Reduction Companies

Mitigation & Remediation

Contractors specializing in radon remediation including depressurization and barriers

Professionals near you

Building Consultants (Radon in New Construction)

Consulting & Engineering

Engineers or architects specializing in radon-safe building design

Professionals near you

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 test

Radon in Denmark

What should you do?

Learn how to test

Hire a professional

Mitigation options

Regulations & obligations

Dwellings

Workplaces

Public buildings & schools

New construction

Professional services

How to test for radon yourself

Major Cities

Official resources