Question 7: Interpreting the monitoring results: What will the Radon concentrations tell you?

The lower the Radon concentrations in your home the lower your health risk. It is believed that any Radon exposure carries some risk. The best is to bring the Radon concentration level in your home down to the level in the outside air. The WHO recommends to take action if the average Radon concentration in your home exceeds 100 Bq/m3.

The Becquerel (symbol Bq) is the SI-derived unit of radioactivity. One Bq is defined as the activity of a quantity of radioactive material in which one nucleus decays per second. The Bq unit is therefore equivalent to an inverse second, s−1.