Copyright 2009
Enright Construction
Radon Testing and Mitigation
760-937-2287
247 Pearson Road, Crowley Lake, CA 93546   760-937-2287
Note: If you are a former smoker, your risk may be higher.
pCi/L (pico Curies per Liter)
* Lifetime risk of lung cancer deaths from EPA Assessment of Risks from Radon in Homes (EPA
402-R-03-003).
Greg Enright, General Contractor, California License 912082
NEHA NRPP Certified Residential Radon Measurement Provider  #105316RT
NEHA NRPP Certified Residential Radon Mitigation Provider #105401RMT
Radon Health Effects
Radon is a cancer causing radioactive gas.  In fact, radon is listed as a Class A
carcinogen, meaning it is known to cause cancer.  EPA estimates that about
21,000 annual lung cancer deaths are radon related, and the Surgeon
General warns that radon is the second leading cause of lung cancer in the
United States.  The State of California Department of Public Health estimates
that 1500 lung cancer deaths in the state each year are attributable to radon.

Radon gas decays into radioactive particles that can get trapped in your lungs
when you breathe.  As they break down further, these particles release small
bursts of energy that can damage lung tissue and lead to lung cancer.  Not
everyone exposed to elevated levels of radon will develop lung cancer, but
the chances of getting lung cancer depend mostly on how much radon is in
your home, how much time you spend in your home, and whether you are a
smoker or have ever smoked.
Radon levels
If 1,000 people who smoked were exposed to this level over a
lifetime
20 pCi/L
About 260 people could get lung cancer
10 pCi/L
About 150 people could get lung cancer
8 pCi/L  
About 120 people could get lung cancer
4 pCi/L
About 62 people could get lung cancer
2 pCi/L
About 32 people could get lung cancer
1.3 pCi/L       
  
About 20 people could get lung cancer (Average indoor radon
level)
0.4 pCi/L
About 3 people could get lung cancer (Average outdoor radon
level)
Radon risk if you smoke
Note: If you are a former smoker, your risk may be lower.
pCi/L (pico Curies per Liter)
* Lifetime risk of lung cancer deaths from EPA Assessment of Risks from Radon in Homes (EPA
402-R-03-003).
Radon Risk If You've Never Smoked
Radon Level
If 1,000 people who never smoked were exposed to this level
over a lifetime
20 pCi/L
About 36 people could get lung cancer
10 pCi/L
About 18 people could get lung cancer
8 pCi/L        
About 15 people could get lung cancer
4 pCi/L
About 7 people could get lung cancer
2 pCi/L  
About 4 people could get lung cancer
1.3 pCi/L  
About 2 people could get lung cancer (Average indoor radon
level)
0.4 pCi/L
(Average outdoor radon level)