The Biological and Medical Effects of Radiation
The Biological and Medical Effects of Radiation
The Biological and Medical Effects of Radiation
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Background <strong>Radiation</strong><br />
We are constantly surrounded <strong>and</strong> exposed to low<br />
levels <strong>of</strong> radiation on a daily basis. In the US, we<br />
receive a dose <strong>of</strong> around 100 mrem <strong>of</strong> radiation from<br />
the environment each year. (Although this can very<br />
greatly depending on where you live.) This comes from<br />
a variety <strong>of</strong> sources:<br />
•Cosmic Rays from Space<br />
~44mrem<br />
•Gamma radiation from external<br />
radioactivity ~40 mrem<br />
•Internal radiation ~18 mrem
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