- Statutory reference value for the annual average radon concentration in the air in indoor spaces and at workplaces: 300 Bq/m³
- Preventative measures against the ingress of radon into buildings should be undertaken in accordance with the general rules of technology. (*Norm SIA 180/2014: Wärmeschutz, Feuchteschutz und Raumklima in Gebäuden, Wegleitung Radon, 2019)
- The radon concentration in the soil gas may vary between regions and seasons.
- Radon experts help to determine the radon level and position the appropriate measuring devices (exposimeters). Following this they also provide assistance with defining necessary measures.
- Radon is the second most frequent cause of lung cancer after smoking.
- The radioactive noble gas blends with the ambient air outdoors and gets diluted. Therefore it is not dangerous.
- Everyday tip: Aerating thoroughly and regularly reduces the radon concentration.
(Source: Strahlenschutzverordnung (StSV))