Catman-do

Are you referring to possible presence of existence of Radon? Are you talking abut some other form of radioactive fallout from someone unknown event or source ?

Do you live in a Radon-prone area?
What are your thoughts and/or proof of any fallout in your home? Who ran the tests and how long were the tests run to detect any radiation?

Due to recent world events (middle east especially ) I am worried of pending nuclear war breaking out. That being said, I am concerned about my furnace allowing fallout coming into my basement. Thoughts on how to solve this?