about background radiation
TRANSCRIPT
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Background Radiation
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What is Back Ground Radiation?
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Background Radiation is all around us.
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We can do little to avoid it.Most background radiation comes from natural sources.
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These Natural Sources Are
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Cosmic RaysWhich is radiation that gets to
the earth from outer space.
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AnimalsAnimals to produce natural
levels of Radiation
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Rocks Some rocks give away
radioactive radon gas.
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Soil and Plants The radioactive materials from
rocks absorbed by soil and therefore on to plants
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While most artificial radiation comes from medical examinations such as X-ray photographs.
Artificial Radiation
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How Do Rocks Contain Radioactivity
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Some rocks contain radioactive substances that produce a radioactive gas called radon.
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The pie chart shows the % of the different sources of background radiation that the public are exposed to.
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What Is Radon?
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Radon is a natural radioactive gas.
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It comes from an extremely small amount of uranium that
is naturally found in all rocks + soil
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What is Radon Detector?
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A radon detector is a machine used to detect the presence of
radon gas.
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Facts about Background Radiation
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Is Radon Present in AllParts of Italy?
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Yes Radon is present in all parts of Italy, but the gas disperses outside so the
levels of radon is normally very low.
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2. Is Radon bad in our Lungs
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The air we breathe also contains small amounts of
isotopes which are one of two atoms having the same
atomic number but a different mass number.
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This produces radioactivity in our lungs
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3. Is career conected to background Radiation?
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There is lots of career connected to B.R. for example;
there is lots of physics and science for example
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They are…
Building Materials and Background Radiation
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Ionizing Radiation
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Maximum Work Environment Exposure