Convert Becquerels per kilogram to Femtobecquerels per kilogram
Convert Becquerels per kilogram (Bq/kg) to Femtobecquerels per kilogram (fBq/kg) instantly and accurately.
Conversion Formula
fBq/kg = Bq/kg × 1000000000000000
About Becquerels per kilogram
The becquerel per kilogram (Bq/kg) is the SI derived unit of specific activity. It is the primary unit in food safety regulations worldwide: the EU, Japan, and Codex Alimentarius set ¹³⁷Cs limits in Bq/kg for foodstuffs; soil ¹³⁷Cs contamination from Chernobyl and Fukushima fallout is mapped in Bq/kg. 1 Bq/kg = 1 s⁻¹ kg⁻¹ = 1 mBq/g.
About Femtobecquerels per kilogram
The femtobecquerel per kilogram (fBq/kg) equals 10⁻¹⁵ Bq/kg. Used in accelerator mass spectrometry (AMS) to quantify cosmogenic radionuclide concentrations (¹⁰Be, ³⁶Cl) in ice cores, sediments, and geological minerals where activities per unit mass are at the femto-level. Ultra-clean radiochemistry purity assessments for solar neutrino detectors also reach fBq/kg sensitivities. 1 fBq/kg = 10⁻¹⁵ Bq/kg.
Quick Reference Table
| Becquerels per kilogram (Bq/kg) | Femtobecquerels per kilogram (fBq/kg) |
|---|---|
| 1 Bq/kg | 1 × 1015 fBq/kg |
| 2 Bq/kg | 2 × 1015 fBq/kg |
| 5 Bq/kg | 5 × 1015 fBq/kg |
| 10 Bq/kg | 1 × 1016 fBq/kg |
| 25 Bq/kg | 2.5 × 1016 fBq/kg |
| 50 Bq/kg | 5 × 1016 fBq/kg |
| 100 Bq/kg | 1 × 1017 fBq/kg |