Background Radiation

What is Back Ground Radiation?

Background Radiation is all around us.

We can do little to avoid it.Most background radiation comes from natural sources.

These Natural Sources Are

Cosmic RaysWhich is radiation that gets to

the earth from outer space.

AnimalsAnimals to produce natural

levels of Radiation

Rocks Some rocks give away

radioactive radon gas.

Soil and Plants The radioactive materials from

rocks absorbed by soil and therefore on to plants

While most artificial radiation comes from medical examinations such as X-ray photographs.

Artificial Radiation

How Do Rocks Contain Radioactivity

Some rocks contain radioactive substances that produce a radioactive gas called radon.

The pie chart shows the % of the different sources of background radiation that the public are exposed to.

What Is Radon?

Radon is a natural radioactive gas.

It comes from an extremely small amount of uranium that

is naturally found in all rocks + soil

What is Radon Detector?

A radon detector is a machine used to detect the presence of

radon gas.

Facts about Background Radiation

Is Radon Present in AllParts of Italy?

Yes Radon is present in all parts of Italy, but the gas disperses outside so the

levels of radon is normally very low.

2. Is Radon bad in our Lungs

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.

This produces radioactivity in our lungs

3. Is career conected to background Radiation?

There is lots of career connected to B.R. for example;

there is lots of physics and science for example

They are…

Building Materials and Background Radiation

Ionizing Radiation

Maximum Work Environment Exposure