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Radiation

What is Radiation?

Radiation is energy in the form of waves and particles. It is a natural phenomenon that has existed since the beginning of time and exists everywhere.

Exposure to radiation is measured in millirems. The average person receives approximately 360 millirem per year from all sources of natural and man-made radiation. We are exposed to naturally occurring background radiation every day of our lives from the earth, cosmic rays, radon gas, naturally radioactive foods such as bananas, buildings made of naturally radioactive materials such as granite, and even each other. The greatest single source of background exposure (an average of 200 millirem per year) comes from radon gas(radon gas comes from uranium in the earths crust). We are also exposed to man-made radiation from dental x-rays, medical procedures, and televisions. Certain activities increase our exposure to radiation such as smoking (cigarette smoke contains radioactive particles) or airline travel (radiation exposure is higher at higher elevations).

For more information on radiation, please refer to www.epa.com or the short film on dose calculations on the video page.

Schematic: RADIATION: RISKS AND REALITIES
United States Environmental  Protection Agency

TYPICAL BACKGROUND RADIATION LEVELS

Location   Dose

U.S. National Average 300 millirem/year

Connecticut 284 millirem/year

Colorado (Denver) 364 millirem/year

France (near Radon Springs) 1,600 millirem/year

India (parts of) 1, 140 millirem/year

Brazil (parts of) 17,500 millirem/year

Note: An individual's exposure to radiation dose is measured in  "rem."

    Most radiation dose is so small that it is measured in millirem (1/1,000 or  .001 rem).

    Naturally Occurring Background Radiation in Connecticut Varies by More Than 50 Millirems/yr

     

    TOWNS

    Wethersfield

    Stonington

    East Lyme

    Manchester

    Hartford

    Portland

    Wethersfield

    East Haddam

    Marlborough

    Manchester

    Meriden

    Chester

    Haddam Neck

    Ledyard

    Haddam

    Old Wethersfield

    Madison

    Killingworth

    West Hartford

    Old Saybrook

     

    GENERAL LOCATION

    The Commons at the Cove

    Lantern Hill

    Rocky Neck State Park

    Buckland Hill Mall water tower

    State Capitol Union Memorial Arch

    Residential backyard

    Barn at the Cove

    Devil's Hopyard

    Marlborough Tavern

    Buckland Hill Mall south

    Castle Craig State Park

    Airport

    Fire Station

    Foxwoods

    Haddam Meadows State Park

    Motor Vehicle Department

    Hammonassett State Park

    Chatfield Hollow State Park

    West Farms Mall garage

    Dock & Dine parking lot

     

    BACKGROUND
    RADIATION EXPOSURE
    (for 24 hrs/day, 365 days)(in millirems/year)
     

    110

    95

    95

    87

    84

    80

    79

    79

    78

    77

    70

    70

    69

    68

    67

    65

    63

    60

    53

    43

     

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