September 26, 1957
MDT~1045=57
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The reports below are for your information and files.
1. Record of phone call to:
Ge Le Dunham
Div. Biol. & Ked.
AEC, Wash. D.C.
Sterling 3-8000 (per advice of Shute and Barton)
at 1718 9/24/57
"24 hour air sample at UCRL Serkeley ending approximately 0730 Sept 24
exhiblt beta-gamma emitters in excess of 6 fold background after both
i hour and 9 hours decay.
minations very little.
Decrease in counting rate between these deter~
Confirmed by sample from our Livermore lab 45
miles to the east. Based on these data we tentatively conclude unnatural
radioactive pollutant. Will confirm Thursday 26th. Refer our letter
| NBG+266-56 dated Feb, 26, 1956 for technique."
(Above notification made in accordance with addressee's request "to wire
or phone any air sampling or ground level data exceeding 5 times background."
Also notified:
Dan Wilkes (U.C. Public Relations Office at 1730;
at 1920; both 9/2h/57e
E, Nielsen
2. Report of phone eall at 1357 9/26/57 to:
SC. Le Dunham
Div. Biol. & Med.
AEC, Wash, 25, D.C. (Sterling 3-8000)
“Confirming phone of 1718 POT 9/24/57, Berkeley 24 hr air sample ending
O730 exhibits beta-gemma activity slightly in excess of 5 tines snatrasent
background after decay of 48 hours, Substantiated by our Livermore leb
sexple,"
These reports were made by the writer, U.C. Radiation Laboratory, Health
Chemistry Group.
MDT/cg
oes me Patterson, H.Physics
ilkee, U.C. Pub. Relations
» Attn: Re 6. Hughey
BEST COPY AVAILABLE
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