II, Tumbler-Snapper (Spring 1952)
B.
"---An ad hoc committee composed of authorities in the fields of medicine and roentgenology has given careful study to the exposures which
may be safely received by the public as a result of nuclear test
detonations. This committee advised the United States Atomic Energy
Commission that a total dose of 3 roentgens in any period of 10 weeks
would not exceed safe levels. The dose of 3 roentgens may be received
as @ result of a single exposure or a number of successive, smaller
exposures, but the total exposure during the 10 weeks should not exceed
3 roentgens.-———"
nA maximum permissible air concentration for mixed fission products
following a nuclear detonation has been established by the United
States Atomic Energy Commission upon the recommendation of an advisory
panel of experts. This concentration is 100 microcuries per cubic
meter of air, averaged over a 24-hour period.—--"
_ "---It is estimated that water containing total fission product activity
amounting to 0.005 microcurie per milliliter 3 days after the fission
products were formed could be used safely for any period of time.---"
Atomic Energy Commission's 13th Semi-Annual Report to Congress, July-
December 1952, pp. 113-116.
"---the Commission has adopted a policy of limiting exposures whenever
possible tc 2 total of not more than 3.9 roentgens over a period of 13
“2eks, appriximately the length of the 1953 test period."
Gmic Eserzy Commission's 14th Semi-Annual Report to Congress, Janv-
BUS exposure standurd chewld be 3.90/13 weeks, vith the Test a
wir ctor autcorize’ to approve exceptions if required.
“Site exposure standerd shoul: be 3.9r/yr, the figure being one
of actual gamma
exposure es measured by a reliable indicator of total
body irradiation and corrected by a factor to reflect the effects of
shielding and weathering."
|
Committee to Study Nevada Proving Ground, Spring 1954.