Estimate Your Dose From All Natural Sources

Source	Parameters	Your Average Annual Dose (mrem)
Cosmic radiation at sea level (from outer space)		26
What is the elevation (in feet) of your town?	0-1000 1000-2000 2000-3000 3000-4000 4000-5000 5000-6000 6000-7000 7000-8000 8000+	2
Terrestial (from the Ground:)
What region of the US do you live in?	Elsewhere in the US Gulf Coast Atlantic Coast Colorado Plateau	46
Internal Radiation:
From food and Water (Potassium)		40
From air (Radon)		200
Do you have a Plutonium powered pacemaker?	No Yes	0
Do you have a porcelian crowns or false teeth?	No Yes	0
Travel Related Sources:
How many miles do you travel by jet?		0
Are X-Ray equipment used at your airport?	No Yes	0
Do you use gas lantern mantles when camping?	No Yes	0
Miscellaneous Sources:
Weapons Fallout		1
House Construction: Do you live in a stone, brick, or concrete building?	No Yes	0
Do you wear a luminous watch (LCD)	No Yes	0
Do you watch TV using a CRT Monitor?	No Yes	0
Do you use a computer with a CRT Monitor?	No Yes	0
Do you smoke a 1/2 pack of cigarettes per day	No Yes	0
Do you have a smoke detector in your home?	No Yes	0
How many medical X-Rays do you have per year (40 mrem)?		0
How many nuclear medical procedures do you receive per year? (14 mrem)		0
Do you live within 50 miles of a nuclear power plant?	No Yes	0
Do you live within 50 miles of a coal fired power plant?	No Yes	0

Notes:

• The amount of radiation exposure is usually expressed in a unit called millirem (mrem). In the United States, the average person is exposed to an effective dose equivalent of approximately 360 mrem (whole-body exposure) per year from all sources (NCRP Report No. 93).]
• 5000 mrem is the annual deep dose limit established by the Nuclear Regulatory Commission.
• The dose calculator is based on the American Nuclear Society's brochure, "Personal Radiation Dose Chart". The primary sources of information we relied on are the National Council on Radiation Protection and Measurements Reports 92-95, and 100. Please remember that the values used in the calculator are general averages and do not provide precise individual dose calculations.