Radon and Thoron Data From Canadian Homes

Radon and Thoron Data From Canadian Homes is an open dataset from Health Canada with 14 files (DOCX, HTML, TXT, CSV, XLSX); catalogue record updated 2025-11-12. On CanQuery you can open 2 CSV or Excel files as tables, filter, chart and export up to 10,000 rows as CSV and follow the original downloads. Files are available in English and French.

Radon (Rn-222) is the second leading cause of lung cancer after tobacco smoking. It can easily move through small spaces in soils and other materials, allowing it to enter buildings and accumulate to levels that can pose a health risk. Health Canada recommends that all Canadians test their home for radon and remediate if levels are higher than 200 becquerels per cubic meter (Bq/m³). In order to better understand the risk to Canadians from exposure to radon and thoron, the National Radon Program (NRP) conducted an indoor residential measurement survey in 2012-2013 to gather information on radon and thoron levels across the Census Metropolitan Areas (CMA) in Canada.

Publisher

Health Canada

Resources

14

Catalogue metadata updated

2025-11-12