[bitL]

Enjoy your ignorance:

https://ratical.org/radiation/CNR/CHfIP1975.pdf

[tzahola]

Nowhere in this document do they state that inhaling 5000 particles increases lung cancer risk by 1%.

I recommend revisiting high school chemistry, especially the topic of molar mass. (Hint: Plutonium is about 250 g/mol. One mol is 6x10^23 particles.)