Radon comes from the radioactive breakdown of naturally occurring radium found in most Florida soils, and in most earthen material used in the building process. In the vast majority of buildings with radon problems, the largest source of radon is soil gas entering the building through small openings in the foundation.
Symptoms of nasal cavity cancer and paranasal sinus cancer include chronic congestion, recurring infections of the sinuses, headaches and recurring nosebleeds, according to Cancer.net.
Deviated septum and sinus infections. A deviated septum will not usually cause problems with pain or vision; however a sinus infection can. The symptoms of a sinus infection are facial or sinus pain, headache, nasal drip, post nasal drip, stuffiness, and fever. It can also cause infections of the orbital or eye socket and the ears.