akagt
Bough the cooperation of several éther U. 3.
Meenciea, the falleut sonitering pregrem hes
yan essentially world-wide ceverage embracing
‘a additienal 40 stations.
(See map). Im fact, thie net-
werk has collected fallout oa
paper fer the
t
feur years: As stated below
les ef many materials
have
collected on a world-wide basis aad analysed
fer radieactivity.
net enly
These data have provided essential information
for the United States but will aleo be nate
available to the United Batiens Seientifie Commi
streatius-90.
When taken into the bedy it is selectivelge™
deposited in the bones and coatinues te irradiate the
surroundiag tissue for long perieds of time since it has
a half-life of 27.7 years
ithe time of the iset
te lose
ene-half of its radioactivity). Massive doses
etrent ium-90
administered to laboratory animals have impaired the blood
forming processes taking place ia the bone “AL
bene tumors.
preduced.
fe in the case of other raediesctive substences
taken intermally, the potential hasards fren streatius-90
ere eveluated in terns of maximum
permissible amounts in
the bedy—quantities considered safe. "or strontius-90
this has been set at one microcurie for sdultes (a unit
that indicates the degree of rajieactiviiy and also the
pene of the isetepe).
iz
Ye ascertain and evaluate the strontium-90
feed by nuclear weapons testing, the Atomic Znergy
feeten has organised a major. program of collecting
and analysing samples froa all ever the world.
(see map)
Samples have been taken of soile, plants, animals, and
water, sea water, rain, emow, ice, air in the upper aad
lower regions, gas, milk, cheese, wine, penguins,
plankton polar bears, fish, etc. Human sasples have
en collected from the fetal atage through old age.
(more)
a)
ee
One of the factors of principal eangern
leng reage effects of fallout is em isotepe called * SaRaae
wes, Ci\dthen ne neta
Stroniume90
PR. Baas RRR,BorRRREP ETN +
whieh is ecellecting data om the effeets of ioni
rediation on man.