By Canadian Radon Data Team · Sourced from official open data

Direct municipal data

Radon Levels in Charlottetown

In Charlottetown, average indoor radon is 210 Bq/m³ (above the Prince Edward Island average of 140 Bq/m³). 25% of tested homes exceed Health Canada's 200 Bq/m³ reference level. Local geology (Sedimentary) contributes to regional variation.

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Radon risk category
High
Health Canada reference: 200 Bq/m³
Mean indoor radon
210 Bq/m³
Prince Edward Island avg: 140 Bq/m³
Homes above 200 Bq/m³
25%
Provincial avg: 14%

Geology note

Charlottetown 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.

Charlottetown vs Prince Edward Island

Charlottetown mean radon210 Bq/m³
Prince Edward Island provincial average140 Bq/m³
Health Canada reference level200 Bq/m³
Homes above 200 Bq/m³25%

Mitigation recommended

Average indoor radon in this area exceeds Health Canada's 200 Bq/m³ reference level. If your home tests high, hire a C-NRPP certified mitigator.

  • 1Confirm levels with a long-term test kit (minimum 3 months)
  • 2If results exceed 200 Bq/m³, contact a C-NRPP certified professional
  • 3Sub-slab depressurization typically reduces levels by 80–90%
  • 4Retest after mitigation to verify the system works

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.

Browse test kits on Amazon.ca →

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Source · Health Canada Cross-Canada Radon Survey (seed). Last updated 2025. Refreshed on the site's automated schedule.
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