Radon in Roskilde
Zealand, Denmark
Geological Context
Location and surrounding area
No official radon classification is available for this municipality.
What the regulations require
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 in Roskilde
Radon Measurement Companies
Companies performing radon measurement under Sundhedsstyrelsen protocols
Radon Reduction Companies
Contractors specializing in radon remediation including depressurization and barriers
Building Consultants (Radon in New Construction)
Engineers or architects specializing in radon-safe building design
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.
FAQ
What does the radon potential classification mean?▾
The radon potential indicates the likelihood that buildings in this area will have elevated radon levels, based on geological and measurement data from official authorities. It does not predict the level in any individual building.
Is measurement mandatory here?▾
It depends on the national regulations and the type of building. In priority action zones, measurement is often mandatory for workplaces and public buildings. For dwellings, measurement is generally recommended. Check the obligations section above for details specific to this country.
What should I do if the level is above the reference level?▾
If your long-term measurement exceeds the national reference level, mitigation measures such as sub-slab depressurization, sealing or improved ventilation can reduce radon levels significantly. Contact a qualified radon professional.