[jjotto]

The article indicates someone making it for medical use had some escape and so far isn’t admitting it.

Some of this stuff isn’t a big deal and is much more common than admitted, but it’s just that now instruments are incredibly sensitive.

[Gaffer]

Thanks....I just don’t know...Just trying to think where from it could be....

[rlmorel]

Agreed. With an 8 day half-life, it wouldn’t last long.

[seowulf]

For all you ‘mericans out there who like ‘merican numbers, 0.5 Bq/m3 is 1.4E-8 uCi/mL.

For reference this is 1.4 times the number where respiratory protection is required (for Co-60 equivalent). Detectible airborne is normally 5E-10 uCi/mL for a 1 m3 sample.

Of course I-131 is not Co-60, so the airborne limit will be different when it is the controlling isotope.