The National Academy of Sciences estimates that Radon causes 15,000 to 22,000 lung cancer deaths in this country each year. The primary source of high levels of Radon in homes is the surrounding soil. The EPA estimates that one in 15 homes across the United States has elevated levels of Radon and no area of the country is free from risk. When choosing a Radon inspector be sure that they are properly certified and have adequate experience to do this type of work. The EPA has established a set of inspection and remediation guidelines to be followed when properly completing this type of work.