Every figure on Radon411 comes from a named public agency. When a figure, a piece of guidance or a directory listing is wrong, out of date or does not match its source, we want to hear about it. This page has the form to tell us, and sets out what happens next.
What to report
- A number that does not match the agency's own publication, or is out of date.
- Guidance that is inaccurate or that no longer matches the agency it summarizes.
- A broken link, or a page or tool that does not work.
- A professional listing with the wrong name, contact details, service area or certification.
Send a report
This form is the way to reach Radon411. Each report is stored for review, and an email address is optional unless you are making a privacy request. Include the page, the figure or sentence you believe is wrong, what you believe is correct, and a source for it if you have one. A link to the agency document is the fastest thing to check against.
For a professional listing, the "Report incorrect information" form on that listing's own profile page works too. It files the report against that listing.
What happens next
- The report is checked against the agency's own publication, not against memory.
- Where the error is confirmed, the page is corrected and its "last updated" date changes to reflect it.
- Where the page already matches its source, it stays as the source published it. If the source itself looks wrong, the right place to raise that is the publishing agency, which the page names.
What we do not do
We do not quietly delete a page instead of fixing it, and we do not leave a known error live because it is inconvenient to change. A correction never replaces a sourced figure with an unsourced one: where the right number is not available from a source we can cite, the page says the data is not available rather than showing a guess.
Checking a figure first
Most figures on Radon411 come from government and scientific publishers, listed with their coverage, licence and the date each was last checked on the data sources page. What each kind of number means is on the methodology page. Checking those first often shows whether an error is ours or sits in the published source.