picocurie
Radioactivityexact by definition
The picocurie is 0.037 Bq exactly, since the curie is defined as exactly 3.7 × 10¹⁰ Bq. It survives in North America almost entirely for one reason: radon in indoor air is regulated in pCi/L, and the US action level of 4 pCi/L is the most widely quoted radiological number in the country.
Watch out: The rest of the world writes the same limit as 148 Bq/m³, and the two look nothing alike. The conversion is 1 pCi/L = 37 Bq/m³, combining the curie factor with the litre-to-cubic-metre one.
| 1 | 0.037 |
One picocurie in every radioactivity unit
| 37 | millibecquerel (mBq) | |
| 2.22 | disintegration per minute (dpm) | |
| 1 | picocurie (pCi)this unit | |
| 0.037 | becquerel (Bq) | |
| 0.037 | disintegration per second (dps) | |
| 0.001 | nanocurie (nCi) | |
| 0.000037 | kilobecquerel (kBq) | |
| 0.000001 | microcurie (μCi) | |
| 3.70000e-08 | megabecquerel (MBq) | |
| 3.70000e-08 | rutherford (Rd) | |
| 1.00000e-09 | millicurie (mCi) | |
| 3.70000e-11 | gigabecquerel (GBq) | |
| 1.00000e-12 | curie (Ci) | |
| 3.70000e-14 | terabecquerel (TBq) | |
| 1.00000e-15 | kilocurie (kCi) | |
| 3.70000e-17 | petabecquerel (PBq) |
Solvers that use radioactivity