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One-half of the

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=
Qo.
my
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Qa

nn

oO
—
mw
ct
4.
oOo
S

mw

The amount of radio- 4.
active atoms of cesium

that will produce
radiation equal to the

radiation standard

‘1974

YERR

Time when people left Bikini Atoll

Time when people were measured for
cesium

°

ces ium

Time when people were measured for

—— |. |__|

cesium

Time when people were measured for

cesium

Time when people were measured for

cesium

Time when people were measured for

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