dr. cynthia wolff from mercy medical center is here to tell us more. is radon lurking in your home? mercy medical center and the siouxland district health department are joining forces to increase consumer awareness of the dangers of radon gas. radon is an odorless, colorless, tasteless gas that causes no immediate health symptoms, but exposure is the second leading cause of lung cancer in the u. s. most alarming, iowa has the highest percentage of homes with elevated radon levels in the nation. each year, more than 20,000 americans lose their lives because of radon. radon is a breakdown product of uranium found in soil, rocks and water and seeps into homes from around a home. it can also enter through cracks in the foundation, floor or walls, through hollow- around floor drains, pipes and sump pumps. radon doesn't discriminate; it can be found in new homes, old homes and in homes with or without basements. the most effective way to family is with a available for only $5 at siouxland district health in sioux city. the and easy to use >>> breaking news tonight. with just three days u