Report an Error

Found something wrong — a statistic, a source, a map figure, a translation? We want to know. Email support@radontest.ca with the subject "Error report" and include: the page address, the claim or number in question, and (if you have one) the source that contradicts it. We acknowledge reports within two business days, verify against primary sources, and correct verified errors with a note on the affected page. Data corrections that affect the Canada Radon Map are applied in the next data release and recorded in the map's change log.