Nova Scotia Cities Ranked by Indoor Radon Levels
Measured averages from Airthings devices across Nova Scotia, Canada. Action level: 200 Bq/m³ — the threshold at which remediation is recommended.
Parrsboro has the highest measured indoor radon in Nova Scotia at 324.5 Bq/m³, based on Airthings measurements across 28 cities.
Updated August 30, 2026
Highest city
324.5Bq/m³
Parrsboro
Nova Scotia city average
116.4Bq/m³
across 28 cities
Above action level
2/ 28
cities
| # | Location | Avg level | vs action level |
|---|---|---|---|
| 1 | Parrsboro | 324.5 Bq/m³ | 1.6× over |
| 2 | Amherst | 254.4 Bq/m³ | 1.3× over |
| ✓ Below EPA action level (200 Bq/m³) | |||
| 3 | Sydney | 198.1 Bq/m³ | 1.0× under |
| 4 | Sydney Mines | 175.1 Bq/m³ | 0.9× under |
| 5 | Bridgewater | 167.7 Bq/m³ | 0.8× under |
| 6 | Chester | 154.5 Bq/m³ | 0.8× under |
| 7 | Halifax | 141.9 Bq/m³ | 0.7× under |
| 8 | Dartmouth | 135.9 Bq/m³ | 0.7× under |
| 9 | Hantsport | 130.9 Bq/m³ | 0.7× under |
| 10 | Windsor | 129.9 Bq/m³ | 0.6× under |
| 11 | Lunenburg | 125.1 Bq/m³ | 0.6× under |
| 12 | Wolfville | 119.2 Bq/m³ | 0.6× under |
| 13 | Kentville | 93.9 Bq/m³ | 0.5× under |
| 14 | New Glasgow | 92.5 Bq/m³ | 0.5× under |
| 15 | Pictou | 91.0 Bq/m³ | 0.5× under |
| 16 | Oxford | 88.2 Bq/m³ | 0.4× under |
| 17 | Truro | 84.2 Bq/m³ | 0.4× under |
| 18 | Cole Harbour | 83.9 Bq/m³ | 0.4× under |
| 19 | Berwick | 81.5 Bq/m³ | 0.4× under |
| 20 | Princeville | 81.5 Bq/m³ | 0.4× under |
| 21 | Yarmouth | 78.4 Bq/m³ | 0.4× under |
| 22 | Glace Bay | 77.7 Bq/m³ | 0.4× under |
| 23 | Digby | 67.8 Bq/m³ | 0.3× under |
| 24 | Middleton | 67.7 Bq/m³ | 0.3× under |
| 25 | Port Hawkesbury | 67.2 Bq/m³ | 0.3× under |
| 26 | Greenwood | 56.3 Bq/m³ | 0.3× under |
| 27 | Antigonish | 54.5 Bq/m³ | 0.3× under |
| 28 | Shelburne | 36.4 Bq/m³ | 0.2× under |