Convert Disintegrations per minute per cubic metre to Nanocuries per cubic metre
Convert Disintegrations per minute per cubic metre (dpm/m³) to Nanocuries per cubic metre (nCi/m³) instantly and accurately.
Conversion Formula
nCi/m³ = dpm/m³ × 0.0004504504505
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.
About Nanocuries per cubic metre
The nanocurie per cubic metre (nCi/m³) equals 37 Bq/m³, identical to 1 picocurie per litre (pCi/L). The US EPA indoor radon action level is 4 pCi/L = 148 Bq/m³ ≈ 4 nCi/m³; NRC 10 CFR Part 20 DAC values for several radionuclides are expressed in the nCi/m³ range. 1 nCi/m³ = 37 Bq/m³ = 1 pCi/L.
Quick Reference Table
| Disintegrations per minute per cubic metre (dpm/m³) | Nanocuries per cubic metre (nCi/m³) |
|---|---|
| 1 dpm/m³ | 0.00045045 nCi/m³ |
| 2 dpm/m³ | 0.000900901 nCi/m³ |
| 5 dpm/m³ | 0.00225225 nCi/m³ |
| 10 dpm/m³ | 0.0045045 nCi/m³ |
| 25 dpm/m³ | 0.0112613 nCi/m³ |
| 50 dpm/m³ | 0.0225225 nCi/m³ |
| 100 dpm/m³ | 0.045045 nCi/m³ |