| Relative Risks for Radon and Lung Cancer* |
| Exposure
Level |
in
pCi/L |
Lung Cancer
Excess Deaths/1000 |
Comparable
Lung Cancer Risk |
| |
>100 |
200+ |
Uranium miner of the 1960's |
| Maximum permissible in mines now |
65 |
140-400 |
3-4 packs/day, 50 years |
| Long-terms accumulation |
20 |
45-180 |
1.5 packs/day, 50 years |
| EPA Action Level |
10 |
22-90 |
Light smoker |
| Average indoor level |
4 |
10-45 |
150 chest X-rays/year |
| Average outdoor |
1.5 |
3-16 |
Passive smoking |
| Fertile woman (with respect to fetus) |
0.2 |
0.8-2 |
15 Chest X-rays/year |
*Adapted from A Citizens Giude to Radon. Numerical risks values were reduced by 25%.
The maximum permissible value for miners appears high because they are exposed only 40 hours per week |
Newsletter
RSS Feeds
Print This Page
Text Size
