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The top documents tagged [pcil zone]
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A Brief History of Radon 1879xs lung cancer rate among underground miners 1896Henri Becquerel discovers natural radioactivity 1924link between radon and
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Lesson 3 How does radon enter a home?. Slide 3-1 Predicted average indoor radon levels (U.S.) This map cannot be used to determine the radon level of
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Take in a Deep Breath! Blow It Out!!! Typical Annual Radiation Exposure... 360 mrem/yr
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