ML24011A019
| ML24011A019 | |
| Person / Time | |
|---|---|
| Issue date: | 01/11/2024 |
| From: | Office of Public Affairs |
| To: | |
| References | |
| Download: ML24011A019 (1) | |
Text
Where you live 1.
Cosmic radiation at sea level (from outer space) 2.
Select the number of millirems for your elevation (in feet) up to 1000 ft. = 2 1000-2000 ft. = 5 2000-3000 ft. = 9 3000-4000 ft. = 9 4000-5000 ft. = 21 5000-6000 ft. = 29 6000-7000 ft. = 40 7000-8000 ft. = 53 8000-9000 ft. = 70 add this number:
3.
Terrestrial (from the ground):
If you live in states that border the Gulf or Atlantic Coast, add 23 If you live in the Colorado Plateau area (around Denver), add 90 If you live in middle America (rest of the U.S.), add 46 4.
House construction:
If you live in a stone, brick, or concrete building, add 7 What you eat and drink 5.
Internal radiation (in your body):*
From food and water From air (radon)
Other sources 6.
Weapons test fallout (less than 1):**
7.
Jet plane travel:
For each 1,000 miles you travel, add 1 8.
If you have porcelain crowns or false teeth, add 0.07 9.
If you use gas lantern mantles when camping, add 0.003
- 10. If you wear a luminous wristwatch (LCD), add 0.006
- 11. If you use luggage inspection at airports (using typical x-ray machine), add 0.002
- 12. If you watch TV**, add 1
- 13. If you use a video display terminal**, add 1
- 14. If you have a smoke detector, add 0.008
- 15. If you wear a plutonium-powered cardiac pacemaker, add 100
- 16. If you have had medical exposures:*
Diagnostic X-rays (e.g., upper and lower gastrointestinal, chest), add 40 If you have had nuclear medical procedures (e.g., thyroid scans), add 14
- 17. If you live within 50 miles of a nuclear power plant (pressurized water reactor), add 0.0009
- 18. If you live within 50 miles of a coal-fired electrical utility plant, add 0.03 My total annual mrems dose:
1 200 40 26 Elevation of some U.S. cities (in feet): Atlanta, 1050; Chicago, 595; Dallas, 435; Denver, 5280; Las Vegas, 2000; Minneapolis, 815; Pittsburg, 1200; Salt Lake City, 4400; Spokane, 1890; Washington, DC, 25.
Some of the radiation sources listed in this chart result in an exposure to only part of the body. For example, false teeth result in a radiation dose to the mouth. The annual dose numbers given here represent the "effective dose" to the whole body.
- These are yearly average dose.
- The value is actually less than 1.