What is radon?

Radon is a naturally occurring radioactive gas that can be present in high concentrations indoors, for example in homes and workplaces. The gas is produced by the natural radioactive decay of uranium and can therefore be found in all types of rock and soil. Radon can also occur in certain building materials, such as concrete and brick. Radon levels vary geographically. For example, high radon levels are typically found in Scandinavia and Austria, while countries such as Australia have much lower levels. However, it is important to remember that radon levels can still be high in homes or offices built over sedimentary soils if ventilation is poor.

Why should radon be measured continuously?

Radon is one of the leading causes of lung cancer

Radon is estimated to contribute to 3% to 14% of all lung cancer cases in a country affected by radon. The exact proportion depends on factors such as the national average radon level and the prevalence of smoking in the population. At long-term average radon concentrations, the risk of lung cancer increases by approximately 16% per 100 Bq/m3.

Radon levels in buildings range from 10 Bq/m3 to 10,000 Bq/m3

In buildings such as homes, schools and offices, radon levels can vary considerably, ranging from as low as 10 Bq/m3 to more than 10,000 Bq/m3. Due to the properties of radon, people living or working in these buildings may unknowingly be exposed to very high radon levels.

Radon levels vary from hour to hour

Radon levels vary considerably between neighboring buildings and even within a building, from day to day and from hour to hour. Because of these variations, it is recommended that indoor radon concentrations be measured continuously.

There are many ways to reduce radon levels in buildings

Some common ways to lower radon levels in existing buildings are:

• Improving ventilation in the building.
• Preventing radon from passing from the basement into living areas.
• Sealing walls and floors.

Radon sensor

Our radon sensor is well suited for controlling ventilation due to its frequent data collection. It can also be used to calculate long-term averages that can support decisions about radon mitigation measures, since you receive all the data directly in your system.