EFFECTS OF RADIATION ON LIVING ORGANISMS
The human body has a certain degree of resistance
power of recuperation from radioactivity.
to and
Too much radiation is
harmful
to
health.
following The
table
the shows
current
internationally
accepted
effects
of
on radiation
living
organisms:
Dosage
Effect on Living Organisms
<0.1 Sv
No effect
0.1 0.25
0.25 Sv
0.5 Sv
0.5
1 Sv
No clinical effects have been observed
May lead to changes in the
serious injury
blood, but no
Some injury from changes in the blood, but no feeling of fatigue
1
1
2 Sv
2
4 Sv
4.5 Sv
Injury, may
experience
lack of
throughout the body
be constitutions
fatal
to people
exposed
to such levels
strength
> 6 Sv
Injury, lack of strength throughout the body. May
with
weak
have
a
50%
Those chance of dying within 30 days. The remainder however, with have a 50% chance of recovery, some permanent damage. Fatal
*
Total body radiation, the dosage being received in exposure within a short space of time
****
0.09 Sv is the total dosage of natural background received during a lifetime (approximately 1.25 mSv/yr)
at
а single
radiation
This shows that the human body can take 0.25 Sv of radiation
one time without injury.
health of
However, in order to protect
China has
the
formulated these
and residents, workers
"permitted doses".
Persons working with radioactivity Residents
0.05 Sv/yr
0.05 Sv/yr
After many years of measurements in several countries
relatively developed nuclear power electricity
generating,
with
the
radiation doses received by residents near nuclear power stations
30