Introduction to Radon & Health Risk
The Fundamentals of Radon & Radioactivity
Radon Occurrence & Behavior
Radon Measurement & Devices
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EPA Citizens Guide Risk Tables

Figures 1-7 and 1-8 are risk tables with recommendations for smokers and non-smokers and are part of the EPA’s Citizens Guide to Radon. Source: U.S. Division of Radiation Safety.

Figure 1-7 Radon Risk for Smokers
Source: EPA
Figure 1-8 Radon Risk for Never Smokers
Source: EPA