Radon + Daughters Lung Cancer Mortality Inhaled Daughters Population Individual Risk 1 WLM 10 cancers in 100,000 1 chance in 10,000 BKG 1pCi/z — 2.5 cancers 2.5 chances (0.25 WLM indoors) (0.005-0.01 WL) 0.03 WL Los Alamos in 100,000 7.5 cancers in 100,000 in 100,000 | 7.5 chances in 100,000