EPA Risk Assessment (1992)

• Radon-Related Lung Cancer Risk:

  • Lifetime Risk at 4 pCi/L Action Level:
    • 1:100 (10-2) for Smokers
    • 1:1000 (10-3) for Non-Smokers
  • Central risk estimate:
    • 14,000 lung cancer deaths/year
    • Uncertainty Range: 7,000 to 30,000 deaths/year

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