What does radon cause?

It might be possible for radon exposure to cause leukemia, but it is much more likely to cause lung cancer if you are looking for negative effects from exposure to radon.

Radon can cause lung cancer. About 10% of the lung cancer cases in USA are attributed to radon.

Radon is a cause of lung cancers, not for bronchitis.

No, radon is a cause of lung cancers.

It doesn't cause air pollution, it is air pollution. It's a radioactive decay product (of radium) that occurs in granite. Not a problem unless you have a stone cellar in your house, if you do, radon...