>You're more at risk from ingesting/inhaling bits of it.
This is the vaaaast majority of the risk profile for radioactive anything.
The half life doesn't really tell you the whole story, Pu-239 mostly decays into alpha particles which is what makes it "safe", it's still not good for you, and very bad if ingested, but externally alpha radiation doesn't really penetrate deep enough into the body to be a big problem.
This is the vaaaast majority of the risk profile for radioactive anything.
The half life doesn't really tell you the whole story, Pu-239 mostly decays into alpha particles which is what makes it "safe", it's still not good for you, and very bad if ingested, but externally alpha radiation doesn't really penetrate deep enough into the body to be a big problem.