1. 17th National Radon Conference 2007 International Radon Symposium Sept 9-12, 2007 Jalbert/Pawel/Carter/IED ~ Draft Estimate ~ State Radon-related Lung Cancer Deaths 1-5 Draft Sep-07 These are unofficial preliminary draft estimates, and modest changes are likely as EPA refines the data and methodology. These estimates will be updated periodically. These estimates were derived using a methodology similar to that used in EPAs 2003 risk assessment ( www.epa.gov/radon/risk_assessment.html). www.epa.gov/radon/risk_assessment.html The data, methodology and other factors used in calculating the state estimates will be included in a short paper being prepared now. These estimates are intended to put the state specific risks in context to the national risk estimate (i.e., the 21,100 annual radon-related lung cancer deaths). States should also consider how to use these estimates strategically in their SIRG program and related risk reducing activities. Remember, the SIRG program has three general criteria for making State grant award decisions: (1) degree of risk; (2) funding/match; and (3) measurable results/performance.

2. 17th National Radon Conference 2007 International Radon Symposium Sept 9-12, 2007 Jalbert/Pawel/Carter/IED Estimate of State Radon-related Lung Cancer Deaths 21,385 {Total of EPA State Risk Estimates, Sep 2007, Draft} 21,100 {National EPA Risk Assessment, 2003} Factors/data needed for the calculation: (1) Estimated average radon level for Zone 1, 2 & 3 (2) Estimated average radon level for each State {QAd comparing LBNL High Radon Project to EPA NRRS} (3) State Lung Cancer Death Rates {U.S. - Radon 13.5%} (4) Population by Zone and State 2-5 Draft Sep-07

3. 17th National Radon Conference 2007 International Radon Symposium Sept 9-12, 2007 Jalbert/Pawel/Carter/IED For each State (S) : Where: RD = Lung cancer deaths due to radon exposure in homes RL = Average Radon Level LCR = Lung cancer rate (per 100,000 persons) P = Population 0.135 = Percent lung cancer attributable to radon exposure (13.5%) Estimate of State Radon-related Lung Cancer Deaths 3-5 Draft Sep-07

4. 17th National Radon Conference 2007 International Radon Symposium Sept 9-12, 2007 Jalbert/Pawel/Carter/IED Annual Radon-related Lung Cancer Deaths State 4-5 Draft Sep-07 It takes an estimated 1,542 Mitigations or 5,292 RRNC to save a life

5. 17th National Radon Conference 2007 International Radon Symposium Sept 9-12, 2007 Jalbert/Pawel/Carter/IED Annual Radon-related Lung Cancer Deaths State 5-5 Draft Sep-07 It takes an estimated 1,542 Mitigations or 5,292 RRNC to save a life