Convert Becquerels per cubic metre to Femtobecquerels per cubic metre
Convert Becquerels per cubic metre (Bq/m³) to Femtobecquerels per cubic metre (fBq/m³) instantly and accurately.
Conversion Formula
fBq/m³ = Bq/m³ × 1000000000000000
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 Femtobecquerels per cubic metre
The femtobecquerel per cubic metre (fBq/m³) equals 10⁻¹⁵ Bq/m³. Used in ultra-sensitive environmental monitoring - noble gas activities of cosmogenic nuclides (³⁶Cl, ¹⁰Be) in deep Antarctic ice cores; air purity screening for underground rare-event physics experiments (dark matter searches, neutrinoless double-beta decay) reaches fBq/m³ sensitivities. 1 fBq/m³ = 10⁻¹⁵ Bq/m³.
Quick Reference Table
| Becquerels per cubic metre (Bq/m³) | Femtobecquerels per cubic metre (fBq/m³) |
|---|---|
| 1 Bq/m³ | 1 × 1015 fBq/m³ |
| 2 Bq/m³ | 2 × 1015 fBq/m³ |
| 5 Bq/m³ | 5 × 1015 fBq/m³ |
| 10 Bq/m³ | 1 × 1016 fBq/m³ |
| 25 Bq/m³ | 2.5 × 1016 fBq/m³ |
| 50 Bq/m³ | 5 × 1016 fBq/m³ |
| 100 Bq/m³ | 1 × 1017 fBq/m³ |