{"id":383481,"title":"Radon / Thoron Survey in Canadian Metropolitan Areas - Canada.ca","sourceCode":"hc","sourceName":"Health Canada","language":"en","captureDate":"2026-04-13","captureTimestamp":"2026-04-13T00:20:58.571000+00:00","jobId":6,"originalUrl":"https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/radon-thoron-survey-canadian-metropolitan-areas.html","snippet":"Radon / Thoron Survey in Canadian Metropolitan Areas Radon and thoron are radioactive gases that occur naturally when uranium and thorium in soil and rock break down through radioactive decay. They are invisible, odourless and tasteless. When released from the ground into the…","rawSnapshotUrl":"/api/snapshots/raw/383481","browseUrl":"https://replay.healtharchive.ca/job-6/20260413002058/https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/radon-thoron-survey-canadian-metropolitan-areas.html#ha_snapshot=383481","mimeType":"text/html","statusCode":200,"captureBackend":"browsertrix","captureFidelity":"high"}