The low levels of radioactive uranium that are found in natural deposits are plainly too low to cause any health problems. And the uranium is already there anyway. It’s just not being mined, so you’d think if there were problems, then they would already be apparent.
I was watching a documentary recently where a nuclear engineer was commenting on the danger of uranium. He stated that even one of the more highly enriched pellets of uranium that they use in a nuclear power plant is not so highly enriched that it is dangerous to handle. He stated that you could hold it with your bare hand to inspect it.
Actually, a uranium mine is pretty safe in that the rock is generally really hard and cave-ins are rare with even fairly good engineering (unlike coal mining, which has accidents no matter what people do or spend on safety).
Uranium mines have to be ventilated a LOT, though. Radon.
Well, I know that this is just anecdotal but I knew a uranium miner, he died of cancer when he was in his early 40s and everyone he worked with is now dead but I don’t know how many or how old they were.
He would have been 59 now, he came from a huge family with no history of cancer, and he didn’t drink or smoke ever.