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EARTH SCIENCES
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# jsaming the wind velocity is a linear function of the height. Six
m equations were obtained for determining the relative concentration
f” of the particles on the earth's surface, A GIER computer was used
FS forthe mumerical ealculations forthe low yield explosions that
Ps produced clouds in the trophosphere and for the distances covered
_by the local fallout. Curves of the size-distribution of the particles
Es far several distances and explosion yield are presented. Signtilcant differences in the particle size distribution for different ex-
Kploston yields were found. (auth)
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40659: (,| (FRNC-TH-40) RADON AND AEROSOL DIFFUSION IN
; “THE TROPOSPHERE.” Birot, Andre (Toulouse Univ, (France)).
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21;169p.. {in French), Dep, NTIS (U, 5, Sales Only),
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“Phe way in which the naturally radioactive gas, réidon, is used
F. changes, i#fi{scussed. Twocomplementary approaches to the
©
bp problem are”considered: .d theoretical analysis of models based
a =upolia pumerical sotution of the classical diffusion equation and
Pe" in situ experimehtal work. Models corresponding to diverse con-
‘“Syitions ‘are presented e.g:,.geometry of the source and diffusivity
sadvertical wind profiles. (auth) (France) , -,
Ry48660 «+ ITTRI-C-6105-24) SCAVENGING STUDY OF SNOW
aA) NDICE CRYSTALS.” Final Report,
‘Sood, Sudesh K.
(IT Re-
ses¥ch Inst,,;Chicago, M11.) 10 Feb 1971. Contract AT(11-1)§78,°'42p.° sDép, "NTIS, oR my HE
* Scavenging efficiency of naturally precipitating snow and ice
i" eryetals was determined for submicron polystyrene latex and
sodium chloride aerosols. The éffect of crystal habit, dimenF* sions, and particle slzé on shavenging efficiency was established.
F.“Experimental restilts showthe scavenging efficiency to be a
_' dunction of both the crystal and partitle diameter, In addition,
* “data on SO, scavenging by snow and ice cryatals is also in-
eluded. Experimental work on capture of aerosol particles by
| ~ “growing ice crystals was also initlated. Experimental data obP.- tained so far show that the number of particles captured by a
. growing ice crystal is proportional to the mass of the crystal.
e ~dauth) ©
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‘
E « ABEG1: ks {IIT'RI-C-6105-16) “SCAVENGING STUDY OF SNOW
_ ANDICE CRYSTALS, Quarterly Progress Report, May 1, 1971, July 33,1971, Sood, Sudesh K, (IIT Research Inst., Chicago,
f.), Aug 1971, «Contract AT(1L-1)-578, 24p. Dep, NTIS,
oev
.,
Experimental work on aerosol generation was reaumed during
‘
Pr +?
t this report pertod. A vaporization-condengation aerosol genera~
‘tor has been assembled anda number of fluorescent materials
s } have been examined to determine the feasibility of using fluo*' Teacent aerosols during snow scavenging experiments. (auth)
'- (LCA/MS+RAE-3/641) EXPERIMENTSIN CORREKientzel, J. M.; Cambon, P. (Laboratoire
, ‘the Paris area are considered. The experlments demonstrate the
’ Influence of certain factors, Back as the origin of the air masses,
the nature of the cloud layers, and the frequency of precipitation.
+. Ne correlation between the results obtained arid the height of the
tropopangs‘was found. (auth) (France)
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48665
(WASH--11B3) SUMMARY INFORMATION ON ACCIDENTAL RELEASES OF RADIOACTIVE EFFLUENT TO THE
~ ATMOSPHERE FROM UNDERGROUKD NUCLEAR DETONATIONS
DESIGNED FOR CONTAINMENT, AUGUST 5, 1963JUNE 30, 1971,
Allen, Robert E, (Division of Operational Safety (AEC), Wash-
ington, D. C.},
Jun i971,
28p,
GPO $0.35.
Information concerning the 17 nuctear tests that inadvertently
released sufficient radioactivity to the atmosphere to be detected
by ground monitors or ground monitoring equipment off the testing
site is presented, including depth of burial, quantity of radioactivity
released to the atmosphere; types of radionuclides identified in the
release, the highest air concentrations detected in the offsite area;
the highest gamma exposure levels detected in the offsite area; the
highest levels of radioiodine detected in milk; and the thyroid dose
where sufficient radioiodine was detected that could lead to a measurable thyroid dose. {D.H.M.)
48666
PHYSICAL CLIMATOLUGY OF AMCHITKA ISLAND,
ALASKa. Armstrong, Robert H.
(Environinental Science Services Administration, Las Vegas, Nev.). Contract SF-54-351,
Bicscience; 21: No, 12, 607-9(15 Jun 1971),
From twenty-first annual AIBS meeting; Bloomington, Ind.
(26 Aug 1970). See CONF- 700843,
Climatological statistics based on data from the vicinity of the
airfield at the low-level southeast end of the island are presented.
However, these statistics only approximate conditions for the
relatively mountainous areas of the island. (P.C.H.)
438667
Lc/38C RATIO AS AN INDICATOR OF AIR POLLU-
TION, Atkins, Patrick R. (Univ. of Texas, Austin).
Radiat, Technol.; 8: No, 4, 381-5(Summer 1971),
Isotop.
The stable isotopes of several atmospheric constituents possibly
can be used ag natural tracers of pollutants and as indicators of
general levels of pollution. A recent preliminary study is de-
were determined. The results indicate that the @C/C ratio in
atmospheric CO, can provide useful information about the degree—and perhaps the sources--- of pollution that affects a given
area. Freeze-out sampling is less convenient but more reliable,
and probably more accurate, than precipitation. With some technique development and with calibration against freeze-out results,
the precipitation procedure may prove to be usable. (auth)
Mineralogy and Exploration
oe
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.
B> (48663, (SRO-M4-12) WEST VALLEY REPROCESSING "'
.
“PLANT, :PART I," Quafterly Report, January 1, 1971-March 31,
fi«1971, “NuclgarFuel Services,Inc., West Valley, N, Y.j. 20Apr
(JUL-755-PA-RG) URANIUM: SUPPLY AND DE48668
MAND, ANALYSIS AND PROGNOSIS, Dietrich, Guenther;
Schwarz, Helmuth; Voss, Alfred (Kernforschungsanlage, Juelich
j y+ During the feport pefiod, three dnalyses were performed on “*
§36p, (In German).
fe NUSTL, 8p! Gea, NTIG, “FO eR oe et
"West Germany). Institut fuer Reaktorentwicklung), Apr 1971.
. jlllk from the NPS farm. The ‘4, gonventrationa determined. + ~
Bd y in the milk were all below 6 ¥.10~* wCl/ml. Thirty-five samples |,
Dep, NTIS (U. S, Sales Only),
a
Pregent world reserves of uranium, their exploration, and
special aspects In regard to supply for West Germanyare dis-
,° ~ Were obtained from the perimeter monitoring stations and ana- "cussed. The most tmportant uranium deposits are diacussed aa
‘lyzed for aipba ‘and bets activity, The alpha activities were all “>.” | well as possibilities of their enlargement through prospecting.
Growth of ore processing capacity ia outlined. Based on the , = below 1.15 x 1074 pCi/eo. The beta activity ranged from 5.49 x |
. 19-
ms
BCi/ml to 7.09 x Lor# #Ci/ ml with an overall average of st
.
projected use of uranium, the theoretical point of exhaustion
E 3.18 x 29"SyCl/al. The amounts of radioactivity discharged
|” is calculated. For West Germany, nuclear energy applicationg
> from the plant lagoons during thld period and their relationship to
are projected with respect to both power production and process
+ the mgximum permissible concentration (MPC) in the Cattaraugus © “* heat, It is concluded that reduction of known uranium reserves
Ee ¥ Creek ara brlnted. Effluent data not previouslyavailable ares. encourages prospectingthrough which, thus far, new deposits
. 2 &lso prepenicd, ‘The amount of particulateradioactivity dig4)
‘: were discovered. Therefore, limitation of uranium supply should
4,charged via the plant atack and relationships of “xr and1 to fy
not present a serlous concern. (H.B.G.)
_” their release limits inechnical apecifications are shown tabu48669
URANIUM CONTENT AND ABUNDANCE IN DEEP-, larly.- Data ara also Included on gurvetliance of facilities and
- ZONE ROCKS OF THE EARTH CRUST AND UPPER MANTLE,
» , quipment including filters. WR.D.) 0 ae oe - pl.
, Borzina, I. G.; Lutts, B. G.; Akimov, A. P. Inv, Akad. Nauk
SSSR, Ser, Geol.; No. 1, 14-24(Jan 1971). (in Russian}.
P * 48664 oe (UCRI+-79270) PRODUCTION OF TRITIUM BY NU- | ~
Results are given for: the determination of the urantum content,
(California Univ,, Liver
Ve "CLEAR WEAPONS. 3 Miskel, Ichi A,
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sion weapons is negligible, whether they were tested in the atmo-
aphere or underground; the contribution from the thermonuclear
tests that were conducted in the atmosphere is large. The present
inventory ts approximately 45 times the natural background as a
result of weapons testing and, even in the absence of further atmospheric tests, will be a significant (>10%) perturbation on the
natural background for about 100 yr; and the underground testing
of thermonuclear weapons has not contributed significantty to the
atmospheric burden, even when the containment has been imper-
scribed in which CO, samples were collected by freeze-out and
-: Central de I'Armement, Arcueil (France)), -Jan1971. 67p, (In
', ; French), "Dep. NTIS (U.S. Sales Only),
.
, _,, Radioactivity measurements taken over a three year perlodin
,
The effects of nucitear weapons tests on the current world tritium
inventory can be summarized as follows: the contribution from fis-
precipitation procedures and the "C/C ratios of the samples
oe LATING THE RADIOACTIVITY OF THE AIR AND PRECIPITA‘TONS AT GROUND LEVEL WITH VARIOUS METEOROLOGICAL
PARAMETERS,
more, Lawrence Radiation Lab.). 30 Jun 1971. 12p. (CONF710809--3). Dep. NTIS.
From Tritlum symposium; Las Vegas, Nev, (30 Aug 1971),
fect. (auth)
‘gudy atmogpheric physics, in particular, tropospheric ex-
- * 48662
4777
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