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 (see www.epa.gov/radon/health-risk-radon#beir). 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).