This report summarizes the results to date of various invusti gations

undertaken by the Health and Safety Laboratory on Project GINS HWE.

The basic purpose of this report is to present new data on theldistribu-

tion of Strontium-90 and this, to the best of our ability, we

ave dons,

However, data are only useful when they serve ag the basis forfinterpreta~
tions and conclusions. We are compelled to point out that theldata are
as yet relatively few and the conclusions muut therefore be regarded as

tentative, more so in some areas of the report than in others,
SOOPE OF WORK AND PRINCIPAL FINDINGS

The specific questions which the Laboratory attempted to ansver
mathods of study and the principal findings can be sunmarized

the

followss

1. DO DATA FROM THE GIMMED PAPER NETVORK ENABLE A SATISFACTOUY ESTIMATS

OF Sr89~90 FALLOUT TO THE EARTH'S SURFACE?
Methed of Study

Principal Findinrs

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five locations in the
United States wers
analyzed for radioactive
Strontium. The results
wero compared with the
amounts of radioactive

otrontium predicted by
our fallout measurements,

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