The Health Physics Society published “Perspectives and Recommendations on Indoor Radon”—its initial position statement on indoor radon—in October 1990. Since that time, the National Academy of Sciences has reevaluated the epidemiological data on underground miners and reviewed indoor radon epidemiological studies. The Academy published its findings in 1999 in its BEIR VI Report, “Health Effects of Exposure to Radon.” The U.S. Environmental Protection Agency
(EPA) reevaluated its risk assessment in 2003. In addition, a significant amount of new information on residential radon studies has become available in the past few years.
HPS’s full statement: http://hps.org/documents/radon_position_statement.pdf