Convert Microcuries per cubic metre to Disintegrations per minute per cubic metre
Convert Microcuries per cubic metre (µCi/m³) to Disintegrations per minute per cubic metre (dpm/m³) instantly and accurately.
Conversion Formula
dpm/m³ = µCi/m³ × 2220000
About Microcuries per cubic metre
The microcurie per cubic metre (µCi/m³) equals 3.7 × 10⁴ Bq/m³ = 37 kBq/m³. Used in US occupational radiation protection; NRC 10 CFR Part 20 DAC values for moderately radiotoxic nuclides are in the µCi/m³ range; air activity inside nuclear plant buildings after small sealed source incidents is assessed in µCi/m³. 1 µCi/m³ = 3.7 × 10⁴ Bq/m³.
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
| Microcuries per cubic metre (µCi/m³) | Disintegrations per minute per cubic metre (dpm/m³) |
|---|---|
| 1 µCi/m³ | 2220000 dpm/m³ |
| 2 µCi/m³ | 4440000 dpm/m³ |
| 5 µCi/m³ | 11100000 dpm/m³ |
| 10 µCi/m³ | 22200000 dpm/m³ |
| 25 µCi/m³ | 55500000 dpm/m³ |
| 50 µCi/m³ | 111000000 dpm/m³ |
| 100 µCi/m³ | 222000000 dpm/m³ |