I —
—_
te very nature of t.e weat ering factor maces Cis a difficclt paramter
to evalvate.
the pro ability of oecurre.ce of precipitation and/or winds avd
to what degres “as to ive eatinated ag well as their effects on radiation
levels,
Leaching effects were studied on soils a out 130 miles from ground
sero where fallout cad occurred during Opxiot-“not ole,
Dose rate readings
were insignificantly lower than tose predicted ty radiological decay according
One exarple of tie effects
to t72+2 arter a period of morg tan one ycar,
of winds whe. was o. served during Epshot-Knoticle,
The fallout from the
Kare. 17, 1953 detonation was in @ long narrow pattern to tie east of ground
sero,
The second day after fallout a@ rather stron surface wind tlew almost
at right angles across the area, for g out a period of a day.
Tose rate
readings were taken on t-e first and fourt> days at te same locations and
t:en were Gomered,
T 6 fourt: day dose rates were less, ‘y factors of tiree
to six, tian tiose to ‘e expected from t.e first days readiics, Lased on
rate of decay of t~1-2, (Otrer fallout measuresents indicated tiat the
rate of decay of tis fallout material was not significantly different
roc
“tas.
.
/S