By Canadian Radon Data Team · Sourced from official open data
Direct municipal dataRadon Levels in Lethbridge
In Lethbridge, average indoor radon is 126 Bq/m³ (below the Alberta average of 166 Bq/m³). 10% of tested homes exceed Health Canada's 200 Bq/m³ reference level. Local geology (Sedimentary) contributes to regional variation.
Geology note
Lethbridge sits on Sedimentary bedrock or surficial deposits. Radon enters homes through cracks in foundations, sump pits, and utility penetrations. Geology explains regional averages, but individual home levels depend on construction, ventilation, and soil contact.
Lethbridge vs Alberta
Testing strongly advised
10% of tested homes in this area exceed 200 Bq/m³. Individual homes vary — the only way to know your level is to test.
- 1Order a Health Canada approved long-term test kit
- 2Place the detector on the lowest occupied level for 3+ months
- 3Send the kit to the lab and compare results to 200 Bq/m³
- 4Retest every 2 years or after major renovations
Order a long-term radon test kit
Health Canada recommends a minimum 3-month test during heating season. Long-term kits give a more accurate picture than short 2-day charcoal tests.
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