Radiation Exposure from Various Sources



SourceExposure
External Background Radiation60 mrem/yr, US Average
Natural K-40 and Other Radioactivity in Body40 mrem/yr
Air Travel Round Trip (NY-LA)5 mrem
Chest X-Ray Effective Dose10 mrem per film
Radon in the Home200 mrem/yr (variable)
Man-Made (medical x rays, etc.)60 mrem/yr (average)

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