Fhe rate of fall of contamination of ured, then, potatoes, and
meat with Cs was much more sipmitieant tian taater contamua-
gen wath YSr. in .@6u, in COMpParison with tat in Par, tre intake
ef "Sr bs the rortuation of che Soviet Laren decrease! bx oO and
an
:
wae
an
tgs
chat of Cs py alirest 60>. The level of .ntake of
(Sr ov the popuoD
.
+
.
raticmhin LIB amounted to wbout G. and thator bes te dt
1
of the
permissible intake of these isotopes uecording te ihe ) 469 standard
of radiation safety. tauth)
23182
CONSIDERATION OF STABLE IONINE IN THE ENVIRONMENT IN THE EVALUATION OF MARIMCUAL PERMISSIBLE
CONCENTRATIONS FOR SI, Tadmor, Jacob (Soreq Nuclear
Research Centre, Yarne, Israel, Tel-iviv Univ., Israel) Radiol, Health Data Rep.; 12: No, 12, GLi-1litDeec 1971),
An increase in the content of #81 in the atmosphe:e duc to 1e-
tease from nuclear fuel reprocessing plants is predicted, Lased
on projected figures for the expansion of the nuclear industry to
the vear 2000. Itis pointed out that stable iodine is also released
from nuclear fuel reprocessing plants. Consideration of the relationship between the concentration of stabic and radivactive is0topes in an equilibrated environment revealed ‘hat the maximum
permissible concentration (MPC) values for * might need revision. A test computation was performed on the IPC of Stain
atmosphere and the corresponding tnaximum permissible burden
in the human thyroid, taking into consideration the ratio between
the mass concentration of the radioactive and total inwtopes. Dats
on the half-time equilibrium for !%f yia different food ehain pathwavs to various human tissues were used in the computation. It
was conciuded that, based on the MPC value of 6 - 10°'! Ci. m* for
the nonoccupational population, the 9! burden of the human tayvroid
in the vear 2009 could reach a level about 1l4-foid higher than the
maximum permissible burden. (C.H.)
23183
BONDS OF METHYLENE BLUE TO ERYTHROCYTES
OF URANIUM MINERS, Nosek, J.
(Inst, of National Health in
Uranium Industry. Pribram. Czech,), Cas, Lek, Cesk.; 110:
No, 14, 313-16(2 Apr 1971).
(In Czech),
A study is presented on the progressive decoioring of methylene
blue by the suspension of erythrocytes, carricd eut on uranium
miners, The results of this and of two preceeding studics show a
different content of pyridinanedindinuc leotides in the ervthrocytes
of uranium miners, as compared with controls. Tbe reason is assumed to be the cantamination of erythrocevtes by uranium. (NSA
of Czech)
23184
alise ti
BODY BURDENS OF ts AND @k IN THE JAPANESE
POPULATION.
Katsunuma, Haruo: Yoshizawa, Yasuo (Tokyo
Vniv.).
Nippon Igiku Hoshasen Gakkai Zasshi; 31: No. 1, 1-6
(Apr 1971)
About 2000 Japanese were sampled for this study. Body burdens
of ‘VCs and “°K in the Japanese population were measure | with a
whole-body counter, Sex and age of the subjects, ranging in age
from 6 to 87 years, were evenly distributed, The survey took
2 yra to complete. The decreasing rate of body burdens of '"Cs
during the 2 yrs was taken into account, and the necessary correction was made. Number of subjects showed in tables by age
and sex, The potassium concentration was recorded as grams of
potassium per kilogram of Jean body mass (LBM). The body
burdens of '*Cs wore expressed as radioactivities per kilogram
of bodv weight per gram of potassium, From the values obtained
in this study, the genetically significant doses delivered by body
burdens of "Cg and ‘°K to the Japanese population were caleulated as 20.61 = 0.50 mRem/yr and 0.49 ! 0.035 mRem’yr respectively (the values of August 1967 were used for the calculation of
the doge), (Japan)
23755
ABSORPTION AND RETENTION OF COBALT IN MAAN
BY WILOLE-BODY COUNTING.
Smith, T.; Edmonds. C. J.;
Barnaby, C.F
{University Coll., London).
Health Phys.:
£2; No. 4, 359-67(Apr 1972).
Retention of Co given intravenously or orally as “CoCl, to
human subjects wags measured by whole-body counting for periods
af up to 1018 dave, Intravenous "Co was retained for long pertods,
as much 2s 9 to 16% of the dese being eliminated only with a bio-
logical hali-life of about 2 yr. The absorption of orally administered “CcC}. depended cn eeveral factors, especially on the amount
ef etabia eckalt given. Only 5% or lesa of a trace dose (containing
lecs than 1 px Co) was absorbed but this increased to more than
20) when larger quantities of stabie cobalt (1.2 mg) were given.
Tio aboorladfracticn cf an oral cose was apparently retained by
the waole bodv in @ similar way to Co given intravenously. Re-
5ui3 © f Lerial counts over the liver using a collimated Nal deteetor, Indic ted that ‘Co wag concentrated in this orpan in excess
of the average whole-bcdy concentration even in subjects mea-
2219
sure] after POO taye
Pea
levee
:
:
ae ATP ae
-A gradual fall in the extent of contamination cf most of the food
a
in:tteaisomiaas't
LIFE SCIENCES
products with “sr and 'Cs was noted in the perrod from L967 to
Med,
ut
The results cadieated thet the ameunt of
1
Coopresentin the liver was, oon average. about cane
total body content. ‘auth
fifth of the
Animals
Rete rads fe aAstategs LL tna 1 shad,
23186
AR Cwir 28)
MEINE RablorCoLOGY,
Polis
karpoy, Gobroced. Translationoot Morskast dadteek frist,
hiey, Izdetel feo Nadkowe Dumka, PATO. ten
feo NTI,
Research tcehmiqges, trans of wie are upplicagle in varius
branei s ol marine erslor ind eceanuper ipa, are deseriberd. Rex
MLS ibe
roperted fram
viaebescen the diag
Sand mame ct
eschinge of radiogesi.. aod chemical sub= "une:
aeteeen h.drohtonts ward the cnsdronment, the distribute: oc rehoenuclides in
ereoanisim ef mitpime fae, and the radiosensituite af niitesys
ha dish emorvos. Composite dataoon the radioece logy ot Peeis
nd coean sare
presented.
Emphasis 1s pleced on thy transpurt of
“Srom water and oreanions of the Black and Red Seas, and the
content ub OSrontish inthe Vthantie and ladian (eeuns. (36s
relorenees) (2.EEI
23187
(OPASR ZF A) GAMADY-RAY SPFPOTROMETRY EXPERIMENTS WITH LARGE FARM ANIMALS,
Daburon, Francois;
Reroy, Jacques; Griilan, Gerard: Tricaud, Yves: Sizza, Pierre
(Commissariat a i’ Phergie Atomique, saciay ¢brance)
Centre
ditudes Nuciewresi
Now l97i. L03p.
(In Frenchy. Dep,
S PIS (U5. Sales Gnivy.
\ survey was unta. of the various types of wale -bous radiation
monitors for large farm aimmuals reperted in tic
torany facihities developed tor sheep,
literature.
Mon-
awaine, and cattle wre de-
serhed fron the poet of views of radiation do tewtion, containment
of the animals, and paantatns used tor calivratiha, The preablems
of raaoiwsotope distribution an the bods were our tudiv studied in
oder totry ane show the changes that wourd adicet the cunting
peometry, Sore examples piven inciide: POC ie metabolism in
daaryv cattle, assessment an the fetuses and bods burdens follow wus
the admunistratien of [31; rate of transit of au dieeste d inseluble
compound (Basa, and the determination Gt the site of uptake
of radionuclides (Chu and 84ers by the mterpretation af the
scanning data. ‘qutn!
23188
(PUR 41)
MOVEMENT OF CERTAIN TsOoTOPES
IN ANIMALS AND OMAN.
Annual Report, L970,
(Commissariat
a PP nergie Atomique, Fonteniy-tux-HKoses , France), Centre
d'Etudes Nuclesires)
Lo7L,
36p.
dn French), Deo, NTIS
(U.S. Sales Ontyt. EUR FF 6.65,
Investigations on the metavollsm cf lanthanides and actinides
following inhalation or iitramuscular injection were carried out
in rats. Ditferences were ooticed between 28 Pu and 7? Pu distribution in tissues. The metabolism ot “Np was simular to
that of “Spal Several vanthanides and actinides ol valence 4 ant
{were compared both dor alveciar clearance vane removal fram
hone. The resu:ts obtained with actinides of a higher valenee
were gathered ta showthe Sinuiarities and ditierences of distribution as compared with actinides of valence 3 or 4. Further
progress was nade in studies on alveolar clearance and the
kinetics obtained in various experimental condiueons were anaIveed. (auth!
23189
(RLO-L730-55) S7nIN BENTHIC INVERTEBRATES
OPP THE GREGON COAST, Carey, Andrew G, Jr.
(Oregon
State Univ, Corvallis, Dept, of Oceanography), (L970). 27p.
Dep,
NTIS,
Radioecological studies of benthic invertebrate fauna off central
and northern Oregon demonstrate that Zn entering the Northeast
Pavifie Ocean via the Columbia River is concentrated by the sublittoral, bathval, and abyssal fauna, The °2Zn \PCi/¢ ash-Iree
drv wt} anc specific activity (uCi © 2Zn/pg Zn) in the fauna decreases
fairly reculariy with distance from the river and markedly with
depth within the first 400 m. The major route of the isotope to
the fauna appears to be through the tocd web. The radoecolagy
of the benthic organisms difters from that of the pelagic fauna.
(auth)
23199
(RIG-1750-61) SEASONAL AND AREAL DISTRIBUTIONS OF RADIONUCLIDES IN THE DIOTA OF THE COLUMBIA
RIVER ESTUARY. Rentro, William C., Forster, Wiliam O.;
Osterberp, Charlies
(Oregon State Umiv,, Corvallis. Dept. of
Oceanographs}.
(19691. 425, Dep. NTIS,
In the Columtnia River Estuary Zn was present during 1964
to 1968 in measurable amounts in all organisms. Because of the
ease with which it could be measured and because of the biolor-
ical importiunee af zinc, Zn was studied most intensively, Other
radionuchdes measured at feast once in the biota were “Wo, -!Mr,
oF ae
May 31, 1972
Sica
-.
chawtis