Convert Becquerels per cubic metre to Disintegrations per minute per cubic metre
Convert Becquerels per cubic metre (Bq/m³) to Disintegrations per minute per cubic metre (dpm/m³) instantly and accurately.
Conversion Formula
dpm/m³ = Bq/m³ × 60
About Becquerels per cubic metre
The becquerel per cubic metre (Bq/m³) is the SI derived unit of activity concentration. The WHO indoor radon reference level is 100 Bq/m³; EU Directive 2013/59/Euratom sets 300 Bq/m³ for residential radon in dwellings; normal outdoor ²²²Rn averages 5-15 Bq/m³ globally. 1 Bq/m³ = 1 s⁻¹ m⁻³.
About Disintegrations per minute per cubic metre
The disintegration per minute per cubic metre (dpm/m³) equals exactly 1/60 Bq/m³ ≈ 16.7 mBq/m³. Used in legacy US nuclear industry and older radiochemistry literature for low-level airborne radioactivity; some historical derived air concentration (DAC) limit publications cite values in dpm/m³. 1 dpm/m³ = 1/60 Bq/m³ ≈ 16.7 mBq/m³.
Quick Reference Table
| Becquerels per cubic metre (Bq/m³) | Disintegrations per minute per cubic metre (dpm/m³) |
|---|---|
| 1 Bq/m³ | 60 dpm/m³ |
| 2 Bq/m³ | 120 dpm/m³ |
| 5 Bq/m³ | 300 dpm/m³ |
| 10 Bq/m³ | 600 dpm/m³ |
| 25 Bq/m³ | 1500 dpm/m³ |
| 50 Bq/m³ | 3000 dpm/m³ |
| 100 Bq/m³ | 6000 dpm/m³ |