1. Radiation can have an effect on
human health
● What are the units to measure the radiation and
the fallout
● Radiation effects on human health
● Major accidents about radiation exposure

2. What are the Units to measure the
radiation and the fallout
● We have the units to measure the radiation.
● It is REM.
● The REM stands for Roentgen Equivalent in
Man.
● This indicates the amount that human is
exposed .
● The fallout is a radioactive dust.
● It is pushed up by the warm atmosphere that is
caused by a nuclear explosion.
● It falls back as the rain to the ground.

3. Radiation effects on human health 1
● Radiation exposure has an effect on human
health immediately. It has some phases.
● In the case of 25 rems, it causes some blood
changes. But it can be found soon.
● When the value is near 100 rems, it isn't
harmful.
● When the value is over 100rems, it causes
some symptoms. There are nausea, vomiting,
headache and loss of white blood cells.

4. Radiation effects on human health 2
● In the case of 300 rems, there is hair loss.
● In addition, there is more dangerous symptoms.
● They are damages of the cells that has relation
to nerve and digestive tracts.
● Decreasing white blood becomes severe and
makes many victims who are exposed persons.
● White blood protects the body from infections.

5. Radiation effects on human health 3
● Due to the radiation, blood plates cannot be
produced in the body.
● This is also serious because they help the
blood to clot.
● When people are exposed in 450 rems, half of
them would die.
● Over 800 rems, all people cannot be alive.

6. Radiation effects on human health 4
● There and fever and diarrhea in any phases. So
people suffer from some diseases.
● The worst thing is that there is not a treatment
for radiation effects.
● When people receive radiation rays over 300
rems, they would die for two to fourteen days.

7. Major accidents about radiation
exposure 1
● Nagasaki and Hiroshima
This accident caused
by nuclear bombs. The
bomb's explosion didn't
kill many people. The
radiation released the
explosion killed them.
The explosion spread
the radiational particle
as fallout.

8. Major accidents about radiation
exposure 2
● Three Mile Island
This happened in the
nuclear power plant.
But nobody was killed
by radiation happily.
● Chernobyl
This is same above
the accident. It is
determined as the
worst accident about
the radiation.