Guide for Radon Measurements in Public Buildings

9. Time Frame to Remediate

Time Frame to Remediate

Radon Concentration	Recommended Remedial Action Time
Greater than 600 Bq/m3	In less than 1 year
Between 200 Bq/m3 and 600 Bq/m3	In less than 2 years
Less than 200 Bq/m3	No action required

The responsibility for remediation, and for its associated costs, rests with the owner of the building. Further information can be found in the document, Radon: A Guide for Canadian Homeowners (ISBN 0-662-25909-2).