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What did the National Academy of Sciences have to say about radon?

The National Academy of Sciences (NAS) published its latest analysis of health research on radon, the Biological Effects of Ionizing Radiation (BEIR VI) Report in 1999. This is the most comprehensive review effort to date. The Committee was charged with:

reviewing all current miner and residential data, as well as all existing cellular-biological data,
comparing the dose per unit exposure effects of radon in mines and homes, and
examining: 1) interactions between radon exposure and smoking, and 2) any exposure-rate effect (alteration of effect by intensity of exposure).

Learn more by visiting Health Risk of Radon and reading the Biological Effects of Ionizing Radiation (BEIR) VI Report: "The Health Effects of Exposure to Indoor Radon.