Table 9.
Relative Risks of Different Environmental Exposures176,178,179,184 (These values relate to equivalence of reduced life expectancy)
| Environmental Item | Exposure Equivalent | Exposure Equivalent |
|---|---|---|
| Pilot Flying: New York City-Athens | 4200 microSv/yr | 420 mrem/yr |
| Pilot Flying: Chicago-San Francisco | 2800 microSv/yr | 280 mrem/yr |
| Chest x-ray | 100 microSv | 10 mrem |
| Extremity x-ray | 10 microSv | 1 mrem |
| Dental x-ray | 100 microSv | 10 mrem |
| Head/neck x-ray | 200 microSv | 20 mrem |
| Cervical Spine x-ray | 220 microSv | 22 mrem |
| Lumbar spinal x-rays | 1300 microSv | 130 mrem |
| Smoking a Cigarette | 70 microSv | 7 mrem |
| Fat Person Eating Pie-a-la-mode | 350 microSv | 35 mrem |