Name
Date
What is your yearly radiation exposure?
Radiation source
Cosmic Radiation
Town: ___________________ Elevation: __________
Less than 1000 ft… 28 mrem 3000-3999 ft………… 41 mrem
6000-6999 ft……….. 66 mrem
1000-1999 ft………… 31 mrem 4000-4999 ft………… 48 mrem
7000-7999 ft……….. 79 mrem
2000-2999 ft……….. 35 mrem 5000-5999 ft……….. 55 mrem
More than 8000 ft…96 mrem
Ground Radiation
Atlantic/Gulf Coast Region…… 23 mrem Gulf of Mexico ………. 23 mrem
Colorado Plateau……………………… 90 mrem Pacific Coast ………….. 46 mrem
Midwest …………………………………… 46 mrem
Home Construction
If your home is made of stone, brick or concrete………add 7 mrem
If your home is made of wood …………………………………………add 2 mrem
Indoor Air
If your home tests positive for Radon Gas………………….add 200 mrem
Radionuclides in the Body (Water/Food) Carbon-14 & Potassium-40
Medical Diagnosis (Multiply # of treatments in the past year by values below)
_____Dental X-Ray………....55mrem each _____Pelvis/Hips X-Ray……………………..…65 mrem each
_____Chest X-Ray…………….8 mrem each _____Skull/Head/Neck X-Ray…………….20 mrem each
_____CAT scan………………110 mrem each _____Mammogram…………………………………139 mrem each
_____PET scan……………2000 mrem each _____Upper GI series…………………………244 mrem each
_____Barium Enema…….406 mrem each _____Nuclear(radioactive dye, etc.)..430 mrem each
Airplane Travel (# of hours in the past year)
____ # of hours in flight from _______________ to ______________ and back
____ # of hours in flight from _______________ to ______________ and back
____ # of hours in flight from _______________ to ______________ and back
Add 0.5 mrem per hour of travel + 0.002 for each security x-ray
Consumer Products (Used during the past year)
__Gas Stove…………………………………2 mrem
__TV (flat screen = 0 mrem)………………1 mrem
__Eyeglasses…………………………… 0.4 mrem __Porcelain Crown or Dentures………… 0.1 mrem each
__LCD Watch………………………… 0.06 mrem __Computer (flat screen = 0 mrem)… 0.1 mrem
__Smoke Detector………………0.008 mrem each
Energy Waste
If you live within 60 miles of a Nuclear Power Plant ………….add .009 mrem
If you live within 60 miles of Coal-Fired Power Plant …………..add .03 mrem
Man-made “environmental” radiation
Radioactive Waste Disposal and leftover fallout from nuclear weapons testing
Cigarette Smoke
Exposed to cigarette smoke ……………add 75 mrem per hour of exposure every day
Cigarettes smoked per day ………………add 500 mrem for every half pack smoked per day
TOTAL ANNUAL RADIATION DOSE
Yearly
exposure
40 mrem
1 mrem
The US average is 360 mrem/year. My annual radiation exposure is ___ times the US average.