Radon map of Switzerland

Languages

Service navigation

Search

Contact information

Radon map of Switzerland

The radon map indicates the probability [%] of exceeding the reference value of the radon concentration of 300 Bq/m3 in a building. Carry out the radon-check in order to determine the urgency for a radon measurement in your building.

Radon map and radon-check

Probability [%] of exceeding the reference value:

Source: Federal Office of Public Health, 2018

The radon map is available in an interactive form on the geocatalog of Swisstopo. Click on that map to obtain the probability for a specific site (zoom in strongly to select a single pixel of 1x1 km). The confidence index (high, medium, low, very low) indicates the reliability of the estimated probability.

Carry out the radon-check in order to determine the urgency for a radon measurement in your building

Address
Please start by enetering the postcode/place or street

To carry out a recognised measurement of radon levels, you should contact one of the measurement services, listed below:

List of measuring laboratories (PDF, 633 kB, 17.05.2023)

Documents

List of cantonal officials responsible (PDF, 81 kB, 23.05.2023)

Radon map (high resolution) (ZIP, 3 MB, 28.08.2019)

Recommendations for new buildings (in French) (PDF, 220 kB, 25.10.2019)

Last modification 20.12.2019

Top of page

Contact

Federal Office of Public Health FOPH
Division of Radiological
Radiological Risk Section
Schwarzenburgstrasse 157
3003 Bern
Switzerland
Tel. +41 58 464 68 80
E-mail

Print contact

https://www.bag.admin.ch/content/bag/en/home/gesund-leben/umwelt-und-gesundheit/strahlung-radioaktivitaet-schall/radon/radongebiete-ch.html