Abstract

Indoor radon is a natural radioactive gas that enters homes through cracks in the foundations. It is one of the leading causes of lung cancer. Although radon can be detected with an indoor radon test and can be mitigated by means of either ventilation or professional measures, testing and mitigating rates of the at-risk population remain insufficient. The objective of this study is to systematically review the current level of evidence regarding the design and effectiveness of mass media campaigns to address the health risks of indoor radon to homeowners. The results show that informative tone of voices prevailed, other components, such as emotional or social components, were often not included. Furthermore, the focus was mostly on intention and less on behavior itself, and on testing instead of mitigation. Further research is needed to test effective and innovative communication strategies to increase protective behavior concerning indoor radon.