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Cancer Risk

The EPA chart below outlines the possible lung cancer risk per 1000 people at 4 different radon levels.

Risk per 1000 people

pCi/L =  picoCuries per liter

RN222 level Non Smoker Smoker
10 pCi/L 18 people 150 people
8 15 120
4 7 62
2 4 32

 

Radon Levels

Here are some radon levels to know about:

  • Average Radon level in Air = 0.4 pCi/L
  • Average Radon in US homes: 1.3 pCi/L
  • EPA Action Level: at 4.0 pCi/L or above the EPA recommends mitigation.
  • WHO (World Health Organization) Action Level: 2.7 pCi/L
  • Mitigation brings homes below: 2.0 pCi/L