Sources: Earth and rock beneath home; well water; building materials.
Health Effects: No acute symptoms. Estimated to cause about ten percent of lung cancer deaths. Smokers are at higher risk of developing radon induced lung cancer.
Steps to reduce Radon exposure: Test your home for radon; Get professional advice before planning and carrying out radon reduction measures; Seal cracks and other openings in the basement floor; Ventilate crawl space; Treat radon contaminated well water by aerating or filtering through granulated activated charcoal.