Radioactivity – concentration/activity conversion

Simple conversion between radionuclide activity in water [Bq/L] and mass concentration [µg/L] using the specific activity of the selected isotope.

Radioactivity – mass/activity conversion

Select a radionuclide and enter either activity in water [Bq/L] or mass concentration [µg/L]. The calculator computes the other quantity using the specific activity of the isotope.

Isotope

Activity in water [Bq/L]

Mass concentration of nuclide [µg/L]

To perform the conversion, select an isotope and enter at least one of the values (activity or concentration).

This calculation is indicative and uses a simplified formula for the specific activity of 1 g of nuclide. For radiation protection assessments always refer to applicable legislation and standards.

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