This article says the exposure accumulates over time, with symptoms of polonium poisoning within the first two weeks; a lethal dose would take about a month to actually kill. nuclearweaponarchive.org/News/Poloniu...
This article says the exposure accumulates over time, with symptoms of polonium poisoning within the first two weeks; a lethal dose would take about a month to actually kill. nuclearweaponarchive.org/News/Poloniu...
May be different (quicker) with elderly and not so healthy specimen