among tha

people who have raceived radiation,

they would be no different

thoae that appear in other people around the world.

that a

radioactive element

that aame

The soientists have found

from the atomic

canoer in tha throat. (in the thyroid).

from

bomb testa oan cause

This radioactive material remains only

@ faw months, 30 that jt ia gone from Bikini Atoll today.
Among tha paople of any country there arn children born with diseases and
infirmities

that

are

inherited,

Some of

‘malformations, mental retardation, ete.

thesa

area:

deafness,

blindness,

These kinds of defects occurred in

the Marshall Islands before the atomic bomb tests and they continue to oceur
today.

In a commmi ty in which peaple have received radiation, there might be

m™m inerease in the number of children born with defects.

THE WAYS THAT SCLENTISTS KNOW THE AMOUNT OF RADIATION A PERSON RECELVES

Everybody

in

the

world

has

some

radioactive

materials

People cannot know by themselves how much radiation
Lhelr bodies beaause

it.

they cannot see

Only instruments can roveal

things

that

measuring

are

the

radioactive

radiation

in

that

jit, hear it,

this.

amell

instruments

the

goil

and

in

comes

from

the

soil.

their

body.

is in any thing or

taste it,

There are

itn

:

food;

there

jn

{t, or feel

for measuring
are

Seilantists

those
use

for,

these

insteudenta to gat information in order to be able to estimate the amount of
radiation that

people can

receiva

{f they

live

tn an

area containing

radioactive things.

The picture at

the

left

shows

the

inasteument

that

sefentists

use

to

Measure the anount of gamma radiation that comes from radioactive materials in

8

Select target paragraph3