Radon is measured in becquerels per cubic meter of air (Bq/m³).
Health Canada recommends that corrective measures be taken when the average annual radon concentration exceeds 200 Bq/m³ in occupied spaces of a home. However, it is up to each owner to determine if a rate less than 200 Bq/m³ is an acceptable level of risk to their health and family.
To reliably measure the radon concentration in a building or to determine if the installation of a mitigation system is required, it is first necessary to install a long-term measuring device, 90 days minimum.
Although it is possible for you to install the measuring device yourself, it is strongly recommended that you hire a professional certified by the National Radon Proficiency Program in Canada (PNCR-C), like us.