maintenance entered my apt today and told me the building has been found to have radon. Should I be concerned? He installed a device and said he'd turn it on next week..he didn't know how high the level was but said can find out by calling the company..should I?

I was told it causes lung cancer--2nd cause of lung cancer..my dad had lung cancer and their seems to be a family genetic thing with the lugs (of course these relatives had smoked ) I quit my 3 packs a day habits 30 years ago.

Cancer runs in the family and I had cancer and radiation treatments--in fact, more radiation than normal, I had to be given..does this radon put me at greater risk of health problems..and does my background make it worse or is it no big deal..I have lived here 2 years.  Thanks.

Summarized question: Does radon gas exposure cause lung cancer?