I.
HUOSTORY OF RADIOLOGICAL SAFETY CRITERIA FOR THE
NEVADA TEST SITE
Below are pertinent abstracts and condensations from past deliberations
on the radiological safety criteria relating to nuclear weapons tests.
I.
Ranger (January-February 1951)
"It had been previously agreed that exposures up to 3.0 r would be
|
permitted for the Operation (20r for individuals planning to participate
in Operation Greenhouse) .”
WI-204_Qperation Ranger Vol. 5 Program. Reports -
Operational.
[faere was no statement on off-site exposures/
Buster Jangle (Fall 1951)
"l. “The external dose to non-participating inhabitants, ef radia-
tion from gamma rays, shall not exceed the accepted international
permissible dose level of 300 mr/wk (1.8 mr/hr).
At eny point oP man habitation, the activity of radioactive
4-hour sverage radicactivity per cubic meter of air, due to
nded rerticies having diameters in the range 0.5 micron to
Mw
om
am p ho a 4.
13!
particles in the atmosphere, averaged over a period of 24 hours,
1b
imited to one microcurie per cubic meter of air (cor-
feos cre
‘
et Ga
hg
(D
oO
microns, $2311 not exceed 10°"
microcurieég; nor is it desir-
that any ixaividual particle in this size range have an
microcuries calculated to h hours after
Ltnst the nartioiuate watter com-
Wa
Qct
Dr
wo
ty
ivity greater than 107
= Ciast.
0a
"2.
°
A.
{aa
II.
dlowable activivty of one microcurie
meter of air will have a norwal distribution of particle sizes ranging from a few tenths
of a micron to rossibly several mdared microns.
(See Appendices TI and TIL.”
Meeting Jangle Feasibility Committee, Washington, D. C., May 21
and 22, 1951.