Radon is a naturally occurring, radioactive noble gas, which can seep into buildings through the ground. Switzerland is particularly affected by this problem due to its geology. The current radon protection strategy is set out in the 2012-2020 action plan.   

What is radon?

Radon is a naturally occurring, radioactive noble gas, which forms in the soil.

How radon enters buildings

Radon infiltrates houses from the soil, which can lead to a pollution of the indoor air.

Radon causes lung cancer

Radon is the primary cause for lung cancer after smoking.

Legal dispositions concerning radon

Legal values have been defined for the radon concentration indoors.

Measuring the radon concentration

It is easy and cheap to measure the radon level in a building.

Advice by radon consultants

Radon consultants with an education approved by the FOPH provide advice regarding appropriate protection measures against radon.

Constructional measures against radon

It is possible to protect a building from high radon levels by adopting simple measures.

Radon map of Switzerland

Based on the performed measurements all communities in Switzerland have been classified according to their radon risk.

Further information

Radon action plan 2012-2020

In the year 2011 the Swiss federal council has passed the national action plan regarding the protection against radon in residential and common rooms.

Last modification 29.08.2018

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