The American Nuclear Society has put out a one-page worksheet that allows US citizens to calculate their annual dosage of ionizing radiation that they receive from their environment, and non-citizens to calculate the value to within 20%. My mom sent it to me to fill out as a laugh. Here are the calculations. All numbers are in millirem
• ### Where you live:

```Elevation:       mrem:
Sea level-300m:  28
300-600m:        31
600-900m:        35
900-1200m:       41
1200-1500m:      47
1500-1800m:      52
1800-2100m:      66
2100-2400m:      79

2400-2700m:      96
```
1. If you live in a state bordering the Atlantic or gulf coasts, add 16 mrem.
• Home Construction
If you live in a stone, concrete, or masonry building, add 7 mrem
• Power Plants
• Add .01 mrem for every Nuclear power plant within 80 km of your home.
• Add .03 mrem for every Coal-fired power plant within 80 km of your home.

• ### How you live:

• For travel in a jet plane, add .5 mrem per hour in the air.
• If you have porcelain crowns or false teeth, add .07 mrem.
• If you wear a luminous wristwatch, add .06 mrem.
• Every time you go through luggage inspection at the airport, add .002 mrem.
• If you watch TV, add 1 mrem. The worksheet doesn't give a dosage per hour on this or the next item, oddly.
• If you use a computer, add 1 mrem.
• If you have a smoke detector, add .008 mrem.
• If you use a gas camping lantern, add .2 mrem.
• If you have a plutonium-powered pacemaker, add 100 mrem
• ### Medical tests

(Remember, rem is not a measurement of radiation received, but the biological effect of radiation received, so the same physical dose given at different wavelengths, or to different parts of the body will have different rem measurements)
```Procedure:                     mrem/Procedure:
Arm/Hand/Foot/Leg X-Ray        1
Dental X-Ray                   1
Chest X-Ray                    6
Pelvis/Hip X-Ray               65
Skull/Neck X-Ray               20
Barium Enema X-Ray             405
Upper GI X-Ray                 245