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Radon
Radon is an invisible gas that can be present in homes and water. The only way to detect it is by measuring.
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What is radon?
Radon is a gas formed when the element radium breaks down. It has no smell, color, or taste. The gas breaks down into so-called radon daughters, which can attach to dust and smoke particles in the air.
Radon can enter a home in three ways:
- from the ground,
- from building materials, especially blue lightweight concrete used between 1929 and 1975,
- from drinking water, mainly from private wells.
Health risks
When air containing radon is inhaled, it can cause changes in cells that may develop into lung cancer. In Sweden, radon is estimated to cause around 500 cases of lung cancer each year, especially among smokers.
Measuring radon levels
The only way to find out the radon level in your home is to measure it.
- Radon levels must not exceed 200 Bq/m³ of air.
- Measurements should be carried out for at least two months during the heating season (October 1–April 30).
- The most common method is track film measurement, where small detectors are placed in at least two rooms, such as the bedroom and the most frequently used living room.
Do you live in an apartment building?
If you live in a rental property or a housing cooperative, the property owner, landlord, or housing association is responsible for carrying out radon measurements.
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Citizen Service
E-mail: kommunen@boden.se
Phone: +46 921 620 00