Alberta Cities Ranked by Indoor Radon Levels
Measured averages from Airthings devices across Alberta, Canada. Action level: 200 Bq/m³ — the threshold at which remediation is recommended.
Rocky Mountain House has the highest measured indoor radon in Alberta at 256.3 Bq/m³, based on Airthings measurements across 70 cities.
Updated August 16, 2026
Highest city
256.3Bq/m³
Rocky Mountain House
Alberta city average
143.9Bq/m³
across 70 cities
Above action level
6/ 70
cities
| # | Location | Avg level | Monitors | vs action level |
|---|---|---|---|---|
| 1 | Rocky Mountain House | 256.3 Bq/m³ | 19 | 1.3× over |
| 2 | Rimbey | 248.6 Bq/m³ | 14 | 1.2× over |
| 3 | Sylvan Lake | 239.8 Bq/m³ | 33 | 1.2× over |
| 4 | Sundre | 224.4 Bq/m³ | 8 | 1.1× over |
| 5 | Black Diamond | 207.8 Bq/m³ | 55 | 1.0× over |
| 6 | Nanton | 206.0 Bq/m³ | 6 | 1.0× over |
| ✓ Below EPA action level (200 Bq/m³) | ||||
| 7 | Crossfield | 196.8 Bq/m³ | 12 | 1.0× under |
| 8 | Olds | 185.3 Bq/m³ | 18 | 0.9× under |
| 9 | Claresholm | 184.6 Bq/m³ | 6 | 0.9× under |
| 10 | Picture Butte | 179.6 Bq/m³ | 6 | 0.9× under |
| 11 | Pincher Creek | 176.7 Bq/m³ | 20 | 0.9× under |
| 12 | Three Hills | 175.5 Bq/m³ | 18 | 0.9× under |
| 13 | Lacombe | 175.3 Bq/m³ | 22 | 0.9× under |
| 14 | Blackfalds | 175.2 Bq/m³ | 11 | 0.9× under |
| 15 | Edson | 174.2 Bq/m³ | 61 | 0.9× under |
| 16 | Cochrane | 173.9 Bq/m³ | 445 | 0.9× under |
| 17 | Vulcan | 171.4 Bq/m³ | 7 | 0.9× under |
| 18 | Hinton | 169.6 Bq/m³ | 19 | 0.8× under |
| 19 | Two Hills | 167.8 Bq/m³ | 6 | 0.8× under |
| 20 | High River | 160.4 Bq/m³ | 45 | 0.8× under |
| 21 | Camrose | 157.8 Bq/m³ | 9 | 0.8× under |
| 22 | Bonnyville | 156.5 Bq/m³ | 23 | 0.8× under |
| 23 | Beaverlodge | 155.5 Bq/m³ | 7 | 0.8× under |
| 24 | Airdrie | 153.2 Bq/m³ | 306 | 0.8× under |
| 25 | Calmar | 151.9 Bq/m³ | 21 | 0.8× under |
| 26 | Carstairs | 151.5 Bq/m³ | 30 | 0.8× under |
| 27 | Coalhurst | 150.6 Bq/m³ | 26 | 0.8× under |
| 28 | Whitecourt | 150.3 Bq/m³ | 13 | 0.8× under |
| 29 | Barrhead | 148.4 Bq/m³ | 14 | 0.7× under |
| 30 | Spruce Grove | 146.2 Bq/m³ | 103 | 0.7× under |
| 31 | Drayton Valley | 145.7 Bq/m³ | 22 | 0.7× under |
| 32 | Ponoka | 145.2 Bq/m³ | 10 | 0.7× under |
| 33 | Vegreville | 144.9 Bq/m³ | 11 | 0.7× under |
| 34 | Elk Point | 141.4 Bq/m³ | 17 | 0.7× under |
| 35 | Penhold | 137.4 Bq/m³ | 18 | 0.7× under |
| 36 | Cold Lake | 134.3 Bq/m³ | 54 | 0.7× under |
| 37 | Okotoks | 134.0 Bq/m³ | 732 | 0.7× under |
| 38 | Devon | 132.2 Bq/m³ | 240 | 0.7× under |
| 39 | Beaumont | 131.0 Bq/m³ | 233 | 0.7× under |
| 40 | Calgary | 130.9 Bq/m³ | 4854 | 0.7× under |
| 41 | St. Albert | 129.8 Bq/m³ | 516 | 0.6× under |
| 42 | Morinville | 129.2 Bq/m³ | 44 | 0.6× under |
| 43 | Slave Lake | 128.1 Bq/m³ | 10 | 0.6× under |
| 44 | Red Deer | 126.8 Bq/m³ | 107 | 0.6× under |
| 45 | Strathmore | 126.4 Bq/m³ | 32 | 0.6× under |
| 46 | Chestermere | 126.1 Bq/m³ | 350 | 0.6× under |
| 47 | Edmonton | 125.9 Bq/m³ | 1648 | 0.6× under |
| 48 | Tofield | 124.3 Bq/m³ | 13 | 0.6× under |
| 49 | Fort Saskatchewan | 124.1 Bq/m³ | 51 | 0.6× under |
| 50 | Stony Plain | 123.9 Bq/m³ | 59 | 0.6× under |
| 51 | Westlock | 121.5 Bq/m³ | 8 | 0.6× under |
| 52 | Leduc | 121.3 Bq/m³ | 114 | 0.6× under |
| 53 | Canmore | 121.1 Bq/m³ | 78 | 0.6× under |
| 54 | Brooks | 119.0 Bq/m³ | 9 | 0.6× under |
| 55 | Lethbridge | 117.3 Bq/m³ | 99 | 0.6× under |
| 56 | Irricana | 116.9 Bq/m³ | 17 | 0.6× under |
| 57 | Medicine Hat | 115.1 Bq/m³ | 76 | 0.6× under |
| 58 | Peace River | 114.6 Bq/m³ | 12 | 0.6× under |
| 59 | Sherwood Park | 112.7 Bq/m³ | 267 | 0.6× under |
| 60 | Stettler | 109.7 Bq/m³ | 12 | 0.5× under |
| 61 | Wainwright | 107.3 Bq/m³ | 10 | 0.5× under |
| 62 | Coaldale | 106.9 Bq/m³ | 13 | 0.5× under |
| 63 | Jasper Park Lodge | 103.4 Bq/m³ | 10 | 0.5× under |
| 64 | Athabasca | 94.4 Bq/m³ | 17 | 0.5× under |
| 65 | Grande Prairie | 92.2 Bq/m³ | 63 | 0.5× under |
| 66 | Wetaskiwin | 90.3 Bq/m³ | 18 | 0.5× under |
| 67 | Wembley | 89.5 Bq/m³ | 6 | 0.4× under |
| 68 | Lac La Biche | 84.8 Bq/m³ | 8 | 0.4× under |
| 69 | Fort McMurray | 65.4 Bq/m³ | 77 | 0.3× under |
| 70 | Lamont | 60.4 Bq/m³ | 7 | 0.3× under |