The plutonium sample is reported to be something similar to this,
https://carlwillis.wordpress.com/2017/02/07/analysis-of-sovi... ("Analysis of Soviet smoke detector plutonium" (2017))
https://carlwillis.wordpress.com/2017/02/07/analysis-of-sovi... ("Analysis of Soviet smoke detector plutonium" (2017))
Nobody should be eating that many bananas.