ENVIRONMENTAL RADIOACTIVITY
Stft ''iiiM. DE E5^ilmsKti»'hlfeï:iaï,JWiF™ra!Piifil:efii ΙβΤίΓ'ΐΛΓτνΕΗ
BORTOLL P. GAGLIONE, )NE, STRICHT
*:m
JilpitiÉiilwfilb
mmm »■*
™.à|T;ÌB
'¿Ju
9 Γ
■ f i i ' t i i t . a
Thi Atomic Ει κ *
This document was prepared Energy Community
¡ρ;
^ΐβΒΒβίΙ
•epared under the sponsorship of the Commission of the European (EURATOM).
M* LEGAL NOTICE
of any information, apparatus, ι infringe privately owned rights;
completeness, or usefulness of the information contained in this document, or that the use method, or process disclosed in this document may not infringe privately owned rights; or
2o — Assume any liabihty with respect to the use of, or for damages resulting from the use of any information, apparatus, method or process disclosed in this document.
m
ill
Mnfi? Iß'•Sw
HK
ISillii iliieiliiPI
This report can be obtained, at the price oí Belgian Francs 85,· from: PRESSES ACADÉMIQUES EUROPÉENNESm New York - a o — LLOYDS BA London E.C.2.
' ' '. P f i f l í í ! ¿ Γ t i l " . - ^ L i T> A T \ T n A Γ Τ Τ Τ Γ Γ Τ Λ
98, Chaussée de Charleroi, Brussels 6. l^tÌM 'Si Please remit payments to :
— BANQUE D E LA SOCIÉTÉ GÉNÉRALE (Agence Ma Campagne) - Brussels - account No 964.658,
— BELGIAN AMERICAN BANK AND TRUST COMPANY New York - account No 22.186,
— LLOYDS BANK (Europe) Ltd. - 10, Moorgate
. reference: "EUR 2213.e - ENVIRONMENTAL RADIOACTIVITY, ISPRA 1963".
KI'T:i :ii.n.. .'»·.? j · » ' i : J . * W ' Í ¿WÎ ■ ( ¿ k i l t . 'J! HjiJffcu.U ht(f«.ittWei.;!E
lais
C^KSBtarønil^^^s^iM
Printed by Guyot, s.a., Brussels, January 1965.
This document was duplicated on the basis of the best available copy.
^ïi»lilÉiiislilllÉi
I v'Íli'í S^ffií'E»: m Â\->\& '«|f'l^i*Ëîn!n: ' fifi !ií1^'t^W:'*5Íyl5 ::'ai
IfMllÄ
tEIHsr ^ w i W fepf'H»? li " M i Ì S f - I T » ' l i H l i ì
EUR 2213.e
E N V I R O N M E N T A L RADIOACTIVITY, I S P R A 1963 by M. D E BORTOLI, P. GAGLIONE, A. MALVICINI and E . VAN D E R STRICHT.
European Atomic Energy Community - EURATOM. Joint Nuclear Research Center.
Ispra Establishment (Italy).
Security Service - Site Survey and Meteorology. Brussels, January 1965 - 68 pages - 12 figures.
In this report are briefly described the measurements of environmental radioactivity performed during 1963 by the site survey group of the Protection Service.
Data are given on the concentrations of strontium-90, cesium-137 and other radionuclides in fallout, air, water, herbage, animal bones and foods.
EUR 2213.e
ENVIRONMENTAL RADIOACTIVITY, I S P R A 1963 by M. D E BORTOLI, P. GAGLIONE, A. MALVICINI and E. VAN D E R STRICHT.
European Atomic Energy Community - EURATOM. Joint Nuclear Research Center.
Ispra Establishment (Italy).
Security Service - Site Survey and Meteorology. Brussels, January 1965 - 68 pages - 12 figures.
In this report are briefly described the measurements of environmental radioactivity performed during 1963 by the site survey group of the Protection Service.
Data are given on the concentrations of strontium-90, cesium-137 and other radionuclides in fallout, air, water, herbage, animal bones and foods.
EUR 2213.e
E N V I R O N M E N T A L RADIOACTIVITY, I S P R A 1963 by M. D E BORTOLI, P. GAGLIONE, A. MALVICINI and E. VAN D E R STRICHT.
European Atomic Energy Community - EURATOM. Joint Nuclear Research Center.
Ispra Establishment (Italy).
Security Service - Site Survey and Meteorology. Brussels, January 1965 - 68 pages - 12 figures.
In this report are briefly described the measurements of environmental radioactivity performed during 1963 by the site survey group of the Protection Service.
E U R 2 2 1 3 . e
EUROPEAN ATOMIC ENERGY COMMUNITY - EURATOM
ENVIRONMENTAL RADIOACTIVITY
ISPRA 1963
by
M. DE BORTOLI. P. GAGLIONE, A. MALVICINI and E. VAN DER STRICHT
1965
Joint Nuclear Research Center Ispra Establishment - Italy
CONTENTS
Page
INTRODUCTION 7
1. AIR RADIOACTIVITY 9
2. FALLOUT RADIOACTIVITY 10
2. 1. Beta radioactivity IQ
2. 2. G a m m a s p e c t r o m e t r y 11
2. 3 Strontium-90 and cesium-137 in fallout 11
2 . 4 . Other important radionuclides in fallout 12
3. HERBAGE RADIOACTIVITY 12
4. MILK RADIOACTIVITY 13
5. STRONTIUM-90 AND CESIUM-137 IN DAIRY PRODUCTS i 4
6. RADIOACTIVITY OF SURFACE WATERS 14
6. 1. Beta radioactivity 14
6 . 2 . Strontium-90, cesium-137 and other radionuclides in
lake water 15
7. STRONTIUM-90, STRONTIUM-89 AND CESIUM-137 IN LAKE
FISHES 15
8. STRONTIUM-90 AND STRONTIUM-89 IN ANIMAL BONES . . . 16
9. STRONTIUM-90 AND CESIUM-137 IN VEGETABLES . . . 16
LIST OF TABLES
Table 1
Table
Table
Table
Table
Table
Table
Table 8
Table
Table 10
Table 11
Table 12
Concentrations of g r o s s beta radioactivity in a i r at Ispra January.
Concentrations of g r o s s beta radioactivity in a i r at Ispra F e b r u a r y .
Concentrations of g r o s s beta radioactivity in a i r at Ispra March.
Concentrations of g r o s s beta radioactivity in air at Ispra April.
Concentrations of g r o s s beta radioactivity in a i r at Ispra May.
Concentrations of g r o s s beta radioactivity in a i r at Ispra June.
Concentrations of g r o s s beta radioactivity in a i r at Ispra July.
Concentrations of g r o s s beta radioactivity in a i r at Ispra August.
Concentrations of g r o s s beta radioactivity in a i r at Ispra September.
Concentrations of g r o s s beta radioactivity in a i r at Ispra October.
Concentrations of g r o s s beta radioactivity in a i r at Ispra November.
Concentrations of g r o s s beta radioactivity in a i r at I s p r a December.
Table 13 Monthly average concentrations of radionuclides in a i r ( p c / m ).
Table 14 G r o s s beta radioactivity, strontium-90, cesium-137 in fallout.
Table 16 Strontium90, strontium89 and cesium137 in h e r -bage.
Table 17 Strontium-90, strontium-89 and cesium-137 in milk - B a r z a .
Table 18 S t r o n t i u m - 9 0 , strontium-89 and cesium-137 in milk - Brebbia.
Table 19 Strontium-90, strontium-89 and cesium-13 7 in milk - I s p r a .
Table 20 Strontium-90, strontium-89 and cesium-137 in milk - O s m a t e .
Table 21 Strontium-90, strontium-89 and cesium-137 in milk - Milano.
Table 22 Strontium-90, strontium-89 and cesium-137 in milk - V a r e s e .
Strontium-90 and cesium-137 in cheese
Geographie coordinates of water sampling points. Beta radioactivity subtracted potassium-40 in the water of the lake "Maggiore".
Table 26 Beta radioactivity subtracted potassium-40 in lakes, s t r e a m s and wells near to the I s p r a Establishment.
Strontium-90 and cesium-137 in lake w a t e r s .
Concentrations of radionuclides in lake w a t e r s . Strontium90, strontium89 and cesium137 in lake -fishes - lake "Maggiore".
Strontium-90, strontium-89 and cesium-137 in lake fishes - lake " V a r e s e " .
Strontium-90, strontium-89 and cesium-137 in lake fishes - lake "Comabbio".
Table 32 Strontium-90, strontium-89 and cesium-137 in lake fishes - lake "Monate".
Table 33 Strontium-90 and strontium-89 in calf b o n e s .
Table 34 Strontium-90 and cesium-137 in vegetables. Table
Table
Table
23
24
25
Table
Table
Table
27
28
29
Table 30
LIST OF FIGURES
F i g u r e 1 a Daily average concentrations of g r o s s beta r a d i o a c -tivity in a i r at Ispra January - June 1963.
F i g u r e 1 b Daily average concentrations of g r o s s beta r a d i o a c -tivity in a i r at I s p r a July - December 1963.
F i g u r e 2 Monthly average concentrations of strontium-90
and cesium-137 in a i r at I s p r a .
F i g u r e 3 Fallout collectors.
F i g u r e 4 G r o s s beta radioactivity monthly deposition at I s p r a since F e b r u a r y 1958.
F i g u r e 5 Gross beta radioactivity cumulative deposit at I s p r a since F e b r u a r y 1958.
F i g u r e 6 Gamma s p e c t r u m of fallout collected at I s p r a in May 1963.
F i g u r e 7 Strontium90 monthly deposition and cumulative d e -posit at Ispra since F e b r u a r y 1958.
F i g u r e 8 Cesium137 monthly deposition at I s p r a since F e b r u a -ry 1958.
F i g u r e 9 P e r - c e n t distribution of the m o s t important radionu-clides in fallout.
F i g u r e 10 Strontium-89 to strontium-90 ratio in fallout since September I 9 6 I .
F i g u r e 11 Strontium-90 in the milk of I s p r a and Milano since January I960.
I N T R O D U C T I O N
In this r e p o r t a r e s u m m a r i z e d the r e s u l t s of the m e a s u r e m e n t s of environmental radioactivity performed by the site survey group of the Protection Service. This group consists of 3 p e r s o n s with University de-gree and 6 technicians.
The work is c a r r i e d out in a chemical laboratory and in a r a dioactivity m e a s u r e m e n t s laboratory, equipped with the instruments a l -lowing to p e r f o r m gamma and alfa s p e c t r o m e t r y and low-level beta coun-ting.
The following r e p o r t s on the same subject have already been published:
CNI - 43 M i s u r e di radioattività ambientale, I s p r a 1958 - 59
CNI - 95 M i s u r e di radioattività ambientale, I s p r a I960
EUR - 223i M i s u r e di radioattività ambientale, I s p r a 1961
EUR - 4 8 l i M i s u r e di radioattività ambientale, Ispra 1962
Main object of the m e a s u r e m e n t s performed is the constant knowledge of the radioactivity levels in the environment of the E u r a t o m I s p r a Establishment, in o r d e r to identify and evaluate incidental r a d i o a c -tive contaminations caused by the Establishment itself.
Since the beginning of the survey the data collected concern only the artificial radioactivity produced by weapons testing and natural radioactivity, both of them contributing, almost entirely, to the i r r a d i a -tion dose of the popula-tion in the environs. The personnel devotes itself almost completely to routine activities, yet efforts a r e made to improve the techniques and to t e s t new methods, with the a i m of improving the work as well from a qualitative stand point as from a quantitative one.
the method for the separation of cesium by m e a n s of filtration through thin ammonium phosphomolibdate layer ( l ) .
the spectrum stripping technique, which allows to evaluate the gamma emitting nuclides in complex gamma s p e c t r a .
The actual survey p r o g r a m m e , in spite of its incompleteness, may by regarded as fairly satisfactory, if one c o n s i d e r s the personnel and the means employed in it.
1. AIR RADIOACTIVITY.
The control of air radioactivity has been c a r r i e d out by means of five stations situated on the boundary of the Establishment. Three new stations will problably begin to work during 1964.
The equipment of the stations and the m e a s u r e m e n t s performed have r e m a i n e d those described in the last annual r e p o r t .
In o r d e r to i n c r e a s e the quantity of radioactivity collected on the filters and to improve the representativity of the s a m p l e s , the volume of filtered a i r has been i n c r e a s e d adopting, up to now only in one station, a device of l a r g e r size, filtering about 600 cubic m e t e r s per day.
In tables 1 to 12 a r e r e p o r t e d the daily values of g r o s s beta r a -dioactivity concentrations in air m e a s u r e d in each station, the daily values averaged over all the stations and the montly average values. The maximum daily value, average of the stations, 32. 6 p c / m o c c u r r e d on January 27j the same day the absolute m a x i m u m value was 37. 2 p c / m .
In o r d e r to know the concentrations in air of the biologically important radionuclides and thus to evaluate the inhalation doses, radioactive strontium and cesium have been chemically separated from a t m o -spheric dust s a m p l e s ; the concentrations of other radionuclides have been estimated by m e a n s of gamma s p e c t r o m e t r y m e a s u r e m e n t s performed di-rectly on the f i l t e r s . These m e a s u r e m e n t s a r e judged n e c e s s a r y because of the large inaccuracy in estimating radionuclide concentrations by g r o s s -beta m e a s u r e m e n t s .
As the composition of the fission products mixture is fairly con-stant over very wide regions, provided that there a r e no m o r e injections of fresh nuclear d e b r i s , the percentages of some radionuclides, found in few s i t e s , may by considered to hold also for the other m o r e numerous s i -t e s , where only g r o s s - b e -t a m e a s u r e m e n -t s a r e performed.
F r o m m e a s u r e m e n t s of single radionuclides, besides the other data, also washout data may be drawn, making a comparison between r a -dionuclide concentrations in air and in rain water.
In table 13 a r e reported the monthly average concentrations in air of the most important radionuclides.
10
A plot of the monthly average concentrations of s t r o n t i u m - 9 0 and cesium-137 in air during the y e a r is reported in figure 2.
F r o m all these data one may notice that:
i) the average concentration of strontium-90 in a i r during 1963 has -14 3
been 5. 06 χ 10 c / m , value 2.4 t i m e s higher than the c o r r e sponding one of 1962 (2. 1 χ 10" c / m );
ii) the monthly average concentration of s t r o n t i u m - 9 0 in a i r has been higher than the y e a r l y average concentration during the
-14 / 3 period m a r c h - a u g u s t , with a m a x i m u m of 9. 6 χ 10 c / m in the month of July;
iii) the cesium-137 to strontium-90 ratio (calculated on the y e a r l y average values) has been I . 6 I .
2. FALLOUT RADIOACTIVITY.
Fallout collection and m e a s u r e m e n t s have continued on a mon thly b a s i s .
2
The 16 poliethylene pots (2.5 m ), used up to now, have been replaced by 4 stainless steel c o l l e c t o r s , with a total collecting a r e a of
2
4 m (see figure 3), obtaining thus an i n c r e a s e d a r e a and a m o r e s a t i s f a c tory durability (the poliethylene pots cracked after few months owing to temperature excursions).
The bottom of the collectors has always been kept covered with deionized water.
As in the past, no attempt has been made to collect separately dry fallout and wet fallout; therefore samples include both types of fallout.
2. 1. Beta radioactivity.
The values of g r o s s beta radioactivity deposited monthly at I s p r a during 1963 a r e reported in table 14, together with the monthly average values of beta radioactivity concentrations in rain water.
11
in the month of may.
In figure 4 is r e p r e s e n t e d the h i s t o g r a m of beta radioactivity monthly deposition at I s p r a since february 1958 and in figure 5 the plot
of the beta radioactivity cumulative deposit, calculated taking into a c -count radioactive decay.
It m u s t be pointed out that all the values of beta radioactivity r e p o r t e d h e r e a r e r e f e r r e d to a p o t a s s i u m chloride standard and, t h e r e -fore, they do not give the true beta activity of fission products. F r o m m e a s u r e m e n t s p e r f o r m e d in this laboratory it r e s u l t s that the values found should be multiplied by a factor of 2. 2 + 0. 2 to obtain the true va-lues of fission products beta radioactivity.
2 . 2 . Gamma s p e c t r o m e t r y .
Gamma s p e c t r o m e t r y m e a s u r e m e n t s a r e performed in stan-dard geometry, on 4g aliquots of the dry residue obtained after evapora-tion of the r a i n water.
The gamma s p e c t r u m of a fallout sample (may 1963) is r e p o r -ted in figure 6. It is apparent from this s p e c t r u m that, owing to its com-plexity, the concentrations of some radionuclides cannot be calculated directly. The s p e c t r u m stripping technique, which has been succesfully adopted in 1963, has made possible the identification and m e a s u r e m e n t of radionuclides such as cesium-137 and m a n g a n e s e - 5 4 . A comparison was made of the values obtained by this way with those of the same radio-nuclides obtained after chemical separation; the agree between the two sets of m e a s u r e m e n t s has proved to be satisfactory, beeing almost for all c a s e s within 10%.
2 . 3 . Strontium-90 and cesium-137 in fallout.
The m e a s u r e m e n t s of strontium-90 and cesium-137 deposited monthly at I s p r a have been continued; the data a r e r e p o r t e d in table 14, together with the concentrations of the two radionuclides in rain water.
12
2 . 4 . Other important radionuclides in fallout.
The r e s u l t s of the m e a s u r e m e n t s of the m o s t important r a d i o nuclides found in fallout a r e reported in table 15; in figure 9 a r e r e p r e sented the p e r c e n t contributions to fallout composition of all the m e a s u -red radionuclides.
The strontium-89 to strontium-90 ratio since september 1961, date of resumption of weapon tests in the a t m o s p h e r e , is r e p r e s e n t e d in figure 10.
F r o m fallout data it may seen that:
i) during 1963 the strontium-90 deposition was of 4 5 . 65 m c / K m , that i s 3.2 t i m e s g r e a t e r than that of 1962. The i n c r e a s e is partially due to a m a r k e d i n c r e a s e in the precipitation (1942 m m in 1963 against 1131 m m in 1962);
ii) the higher strontium-90 fallout r a t e s o c c u r r e d in the months of a p r i l , may, june and July; a heavy strontium-90 deposition o c c u r r e d also in november in connection with abundant p r e c i -pìtatìouij
iii) the cesium-137 deposition during 1963 was of 74. 75 m c / K m ; the cesium-137 to strontium-90 ratio is thus 1.64;
iv) the strontium-89 to strontium-90 ratio has d e c r e a s e d from Ja-nuary to december from 22 to 0. 3.
3. HERBAGE RADIOACTIVITY.
The m e a s u r e m e n t s have been continued on the samples collec-ted in the four sites already known: Barza, Brebbia, I s p r a and O s m a t e ; three sampling s i t e s , i . e . Taino, Monvalle and Roccolo, have been ad-ded in 1963.
In order to intensify the survey, herbage has been collected no m o r e in connection with h a r v e s t cuttings, but every month during the growing season.
13
Samples a r e dried to constant weight and then submitted to a gamma s p e c t r o m e t r y m e a s u r e m e n t ; on an aliquot of each sample, after ashing, a r e p e r f o r m e d the chemical separations of strontium and cesium and the flame photometric determinations of calcium and potassium.
In table 16 a r e reported the r e s u l t s of the m e a s u r e m e n t s , toge-ther with the values of the fresh m a t t e r to dry m a t t e r weight r a t i o . F r o m these values and from the concentration values the concentrations in the fresh herbage may be calculated.
F r o m the data in table 16 it may be seen that the average s t r o n tium90 concentration in the herbage of the four sites near to the E s t a -blishment (Barza, Brebbia, Ispra, Osmate) has been 560 p c / g Ca (186 p c / g Ca in 1962).
Making a comparison of these values with those of the fallout in the l a s t two y e a r s a relationship may be noticed between fallout r a d i o -activity and herbage radio-activity. The proportionality f a c t o r s , that is the 90 concentrations in herbage per unity of deposited
strontium-2 90, have been calculated and found to be: 12. 5 p c / g Ca p e r m c / K m of annual deposition and 88. 5 p c / g Ca per m c / K m of monthly average de-position (average calculated only on the months of the growing period).
The same calculations have been made for cesium-137 and the corresponding values a r e : 3. 0 p c / g K and 23. 3 p c / g K.
A m o r e detailed discussion on this subject may be found e l s e -where (2).
The m e a s u r e m e n t s of herbage radioactivity in the environment of the Establishment have allowed to infer some f a c t o r s , which a r e pecu-liar of the zone and v e r y useful for the operation of a nuclear plant.
4. MILK RADIOACTIVITY.
F o r the monitoring of the milk produced in the vicinity of the Establishment, samples were collected in the dairies of the four villages: B a r z a , Brebbia, Ispra, Osmate and, m o r e o v e r , for comparison p u r p o s e s , in the two milk supply stations of V a r e s e and Milano.
14
Milk is dried, ground and then submitted to gamma s p e c t r o m e t r y , by which cesium-137 and potassium a r e determined.
On an aliquot of the sample, after ashing, a r e p e r f o r m e d the chemical separations of strontium and cesium and the determinations of calcium and potassium by flame photometry.
In tables 17 to 22 the data obtained a r e r e p o r t e d .
A plot of strontium-90 in the milk of I s p r a (average values of the four sampling sites) and in that of Milano since January I960 is r e -ported in figure 11.
A discussion on strontium-90 and cesium-137 concentrations in milk and on the relationships with herbage contamination and fallout rate is the subject of two p a p e r s (2) (3), in which m o r e details may be found.
5. STRONTIUM-90 AND CESIUM-137 IN DAIRY PRODUCTS.
The s e r i e s of m e a s u r e m e n t s of cheese radioactivity, started in I962, have been continued with two groups of s a m p l e s , p u r c h a s e d on the m a r k e t .
The r e s u l t s of the m e a s u r e m e n t s a r e r e p o r t e d in table 23.
6. RADIOACTIVITY OF SURFACE WATERS.
6. 1. Beta radioactivity.
The m e a s u r e m e n t s of the radioactivity of lakes, s t r e a m s , wells and tapwater have been c a r r i e d out with sampling r a t e and techni-ques unchanged with r e s p e c t to 1962.
The dislocation of water sampling points is r e p r e s e n t e d in the map of figure 12 and the geographic coordinates of the points may be found in table 24.
15
6.2.. Strontium-90, cesium-137 and other radionuclides in lake wa-t e r .
The q u a r t e r l y m e a s u r e m e n t s of the concentrations of strontium-90, cesium-137 and other radionuclides as well as of potassium, calcium and strontium have been continued during 1963, owing to the great i m p o r -tance of these m e a s u r e m e n t s in the study of the dispersion into the envi-ronment of radioactive products, which could be p r e s e n t in the water discharged from the Establishment.
By the gamma s p e c t r o m e t r y m e a s u r e m e n t s on the dry residue two m o r e radionuclides, i. e. manganese-54 and antimony-125, have been identified and m e a s u r e d .
The concentrations of strontium-90, cesium-137, calcium and p o t a s s i u m a r e reported in table 27; those of the other m e a s u r e d radionu-clides may be found in table 28.
Making a comparison between strontium-90 values in lake wa-t e r wiwa-th wa-those in rain wawa-ter, iwa-t may be calculawa-ted wa-thawa-t, during 1963, wa-the average ratio of the f o r m e r to the latter was 0. 06 for the lake "Maggiore" and 0.23 for the lake "Monate".
7. STRONTIUM-90, STRONTIUM-89 AND CESIUM-137 IN LAKE FISHES.
As in the past y e a r s strontium-90 and cesium-137 in the fishes of the four lakes near to the Establishment have been m e a s u r e d .
The gamma s p e c t r o m e t r y m e a s u r e m e n t of c e s i u m after c h e m i cal separation has been added to that performed by direct gamma s p e c t r o -m e t r y .
16
8. STRONTIUM-90 AND STRONTIUM-89 IN ANIMAL BONES.
During I963 bone samples (femour) of 28 calves, m o s t about two months old and milkfed, have been collected and m e a s u r e d in o r -der to obtain information concerning strontium-90 t r a n s f e r from the diet to the skeleton of these a n i m a l s .
The concentrations of strontium90, strontium89 and c a l -cium in bones a r e reported in table 33. It may be noticed that the va-lues of I963 a r e higher than those of 1962 by a factor of about 2.
9. STRONTIUM-90 AND CESIUM-137 IN VEGETABLES.
Sampling of vegetables have continued at the m a r k e t of Mila-no, where agricultural products a r e pouring from the m o s t important production zones of Italy.
Each sample, dried and ground, has been submitted to g a m -ma s p e c t r o m e t r y m e a s u r e m e n t ; the chemical s e p a r a t i o n s , as well as calcium and potassium determinations, have been p e r f o r m e d only on the yearly pooled samples of each s p e c i e s .
The r e s u l t s of the m e a s u r e m e n t s a r e r e p o r t e d in table 34.
17
R E F E R E N C E S
(1) Report EUR - 438f. E. VAN DER STRICHT "Détermination rapide du cesium-137 des retombées radioactives au moyen de phosphomolybdate d'ammonium",
(2) M. DE BORTOLI, P . GAGLIONE, A. MALVICINI, E . VAN DER STRICHT "Correlazione fra le attività dello stronzio-90 e del cesio-137 nelle ricadute, n e l l ' e r b a e nel latte della zona di I s p r a durante il periodo 1962-63",
To be published.
ÇONJÇEN^TRAJTIJ3I\S_OF_ GR_OSS_BET A J * ADIOA Cl_ IV I T Y
IN AIR A T ISPRA
JANUARY 1963
D a y
1 2 3 4 5 o 7 8 9 10 11 12 13 14 15 16 17 I S 19 20 21 2 2 2 3 2 4 2 5 7.J 27 2 8 29 30 31
S t a t i o n 1
/ 3
p c / m
4 , 5 0 j
4 , 9 2
1 . 1 7
1 , 6 3
4 , 9 2
4 , 3 8
4 . 6 8
607 6
8 . 5 5
6 . 0 0
5 , 7 0
8 , 1 0
1 2 . 7 5
9 o 2 5
9 . 2 0
6 , 2 8
SoOO
7 . 7 0
5 . 7 0
9 , 0 0
7 , 0 5
8 o 6 0
9 o 5 0
1 4 , 3 0
1 4 , 7 5
3 7 , 2 0
; 1 6 , 2 0
1 0 , 5 0
7 , 6 8
! 1 0 , 3 0
1
S t a t i o n 2
/ 3 p c / m
4 , 3 3
5 , 6 8
1 , 3 8
1 , 0 0
4 , 4 0
4 , 5 2
4 , 7 4
5 . 3 0
7 , 4 8
1 1 , 0 5
6 , 3 i
6 , 2 0
8 , 4 0
1 4 , 9 0
9 , 6 0
7 , 0 0
8 , 1 0
9 , 0 0
8 . 7 0
5 , 8 6
9 , 2 0
6 . 6 4
S . 8 5
9 , 8 0
1 2 , 2 0
1 5 . 8 0
3 2 . 0 0
! 2 1 . 8 0
1 2 , 0 0
8 . 4 5
1 0 , 8 0 !
S t a t i o n 3
/ 3 :
p c / m
3 , 9 6 4 , 4 0
1 . 3 7
1 , 4 0
4 , 4 0
4 , 5 6
4 . 1 6
4 . 8 0
6 . 7 2
8 . 5 5
6 . 8 0
5 . 7 2
7 . 6 0
1 3 . 7 5
9 . 6 0
6 , 4 4
7 . 5 6
1 0 , 16
S . 3 4
5 . 3 2
9 . 2 0
< 1
S t a t i o n 4
/ 3
p c / m
4 , 1 2 '
4 , 5 8
1 , 1 7
1 , 0 7
4 , 0 7
4 . 5 0
3 . 7 0
4 , 2 5
8 . 0 0
6 . 3 2
5 . 7 2
7 . 7 6
1 2 . 6 0
9 . 8 5
6 . 2 0
5 . 7 4
8 . 0 0
. 7 . 5 2
5 . 4 0
8 . 1 0
6 . 2 0
8 . 1 0
9 , 0 0
1 1 . 0 0
1 4 . 3 0
2 9 . 0 0
1 8 , 6 5
1 1 . 5 5
¡ 7 , 6 8
J 9.80
S t a t i o n 5
/ 3 !
p c / m
3 . 6 3 ¡
5 . 1 1
1 . 4 4
1 , 9 2
4 . 1 0
5 , 6 4
3 . 8 5
4 . 6 8
7 . 0 0
8 . 0 0
So 3 J
5 . 9 4
7 . 8 4
2 0 . 3 0
1 2 , 2 5
6 . 8 5
7 . 8 0
9 , 3 0
8 . 2 0
5 . 0 4
1 1 , 8 0
6 . 0 4
8 . 3 0
9 . 3 0
1 2 . 2 0
1 4 . 4 0
3 2 . 0 0
1 7 . 7 0
1 0 , 4 0
¡ 8 , 0 0
1 0 , 4 0
A v e r a g e v a l u e p c / m !
4 . 1 0 j
4 . 9 3 !
1 , 3 0
1 . 4 0
4 , 3 7
4 . 8 0 \
4 . 16 :
4 , 7 4
6 . 9 9
8 . 8 3
6 . 3 6
5 . 8 5
7 . 9 4
1 4 . 8 6
1 0 , 1 1
7 . 13
7 . 0 9
8 . 8 9
8 . 0 9
5 . 4 6
9 . 4 6
6 . 4 8
8 . 4 6
9 , 4 0
1 2 , 4 2
, 1 4 . 8 1
3 2 . 5 5
1 8 , 5 8
1 1 . 1 1
Î 7 , 9 5
! 1 0 , 3 2
1
P r e c i p i t a t i o n
m m
2 , 4
6 . 4
3 6 . 6
5 . 0
6 , 8
2 . 4
5 , 0
2 . 2
1 . 6
2 . 0
1
A v , va lu e 8 , <3 1
M i n . v a l u e 1 , 1 7 Μ Η Κ , v a l u e 3 7 , 2 0 Toral p r e c Í p i t ,
9 , 0 8 1 , 0 0 3 2 , O ü
6 , 4 1 1. 3 7 1 3 , 7 5
8 , 1 3 1 , 0 7 2 9 , 0 0
8 , 8 9 1 . 4 4 3 2 . 0 0
8 . 6 6 1 . 3 0 3 2 , 5 5
C O N C E N T R A T I O N S O F GROSS B E T A R A D I O A C T I V I T Y IN AIR A T I S P R A
F E B R U A R Y 1963
D a y
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 2o 27 28
\ S t a t i o n 1
I
/
3
J p c / m j 9 , 2 0 j 7 . 6 0 j 9 . 4 0 J 8 . 4 0 j 1 0 . 2 5 j 1 2 , 0 0 ; 1 0 . 3 0 J 1 1 , 5 0 : 1 4 . 8 5 i 1 1 . 5 5 J 5 . 4 0 1 2 , 4 5 j 3 , 2 0 ; 5 , 0 0 ¡ 3 . 7 5 | 4 . 2 0 j
J 3 , 6 0 ! 3>0 9 | 3 . 1 2 ! ó°3 4 !
| 4 , 8 8 j j 7 . 2 4 \
j 7 . 8 0 | 8 . 0 0 j 9 , 0 0 | 8 . 6 5 ; 1 9 . 2 0 |
¡ S t a t i o n 2 ! ; p c / m / 3
» 8 . 4 5 J 7 , 6 0 ! 9 , 5 5 | | 9 , 2 0 | J 1 0 , 6 0 ] | 1 2 , 3 5 | ! 1 2 , 0 5 j ¡ 1 2 , 7 0 ! 1 4 . 6 0 ; 1 2 , 9 5 j o , 9 o j 2 , 5 4 j 3 , 4 2 ; 5 . 1 6 j 4 , 0 6 | 3 . 9 0 | 3 . 3 7 | 4 . 2 8 | 3 . 0 6 | 3 . 8 0 j 7 , 1 4 j 5 . 3 8 j 7 . 8 4 j 8 , 4 0 j 8 , 9 0 j 9 . 1 5 | 9 , 2 0 | 2 0 . 4 0 |
S t a t i o n 3 / 3 p c / m
1 2 , 0 0 1 6 . 2 5 1 2 . 6 5
5.56 1
2 , 5 0 3 . 3 5 4 , ó 8 j 2 . 8 0 ] 4 , 0 0 j 3 , 1 7 j 3 . 7 3 j 2 . 9 5 j 3 . 2 7 j 6 , 2 4 j 4 . 6 8 j 7 . 5 2 j 7 . 9 0 j 7 . o 4 j 8 . 9 5 | 8 . 9 0 | 1 8 . 5 0 |
S t a t i o n 4 V 3 p c / m
8 . 0 0 7 , 4 3 8 . 3 0 8 , 3 0 9 , 3 0 1 0 , 3 0 1 0 . 7 0 1 1 . 1 0 1 5 . 2 0 1 2 . 4 0 6 , 1 6 2 , 4 2 2 . 8 8 4 . 5 0 3 . 8 5 3 . 4 5 3 . 1 3 3 . 7 7 2 , 9 3 3 . 3 3 o , 3 4 4 , 4 4 | 6 . 0 4 ] 7 , 5 0 ] 7 , 4 5 | 8 , 5 0 : 9 . 1 4 j 1 8 . 2 0 î
j S t a t i o n 5
i / 3
J p c / m ! 8 , 3 0 { 7 . 8 8 { 6 , 9 2 | 9 , 0 5
J 9,10
| 1 1 , 2 5 J 1 0 , 9 0 ¡ 1 0 . 8 5 | 1 3 , 9 0 1 1 . 1 0
5 . 9 6
\ 2 . 3 0 3 , 0 0 4 , 8 4 3 . 5 5 3 , 7 6 3 , 0 0 3 , 6 1 ¡ 2 , 0 4 ! 2 . 8 1 6 . 0 6 | 4 , 7 0 j 6 . 9 0 j 7 , 8 6 ]
6,95 I
8 . 5 5 j 9 . 1 4 | 1 7 , 8 0 !
! A v e r a g e ¡ v a l u e ! p c / m | 8 . 4 8 j 7 . 6 4 | 8 . 5 4 J 8 , 7 3 j 9 , 8 1 | 1 1 . 4 7 ■ 1 0 . 9 3 | 1 1 . 6 3 | 1 4 . 9 6 1 2 . 1 3
6 , 0 0 2 . 4 5 3 . 1 7 4 . 8 3 3 . 6 0 ; 3 , 8 6 i 3 . 1 o 3 . 7 9 ! 2 . 9 3 ] 3 . 2 6 j 6 . 4 2 ] 4 . 8 1 \
7 . 1 0 | 7 . 8 9 \
7 . 7 8 i 8 . 8 3 | 9 . 0 0 ! 1 8 . 8 2 ';
I I 1 1
¡ P r e c i p i j t a t i o n
} m m
J 0 , 2
2 8 . 2 0 . 6
3 . 8
3 . 4
A v , v a l u e 7 , 7 7 M i n . v a l u e 2 , 45 M a x , v a l u e 1 9 . 2 0 T o t a l p r e c i p i t .
8 , 1 0 2 , 5 4 2 0 . 4 0
7 . 0 1 2.5Ò 1 8 . 5 0
7 . 3 2 2 . 4 2 1 8 . 2 0
7 . 2 3 2 , 3 0 1 7 . 8 0
7 . 5 7 2 , 4 5 1 8 . 8 2
C O N C E N T R A T I O N S O F GROSS B E T A R A D I O A C T I V I T Y
D a y
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ! 9 20 21
22 j
23 j
2 4
25 j
26 ]
27 |
28 j
29 |
30 |
31
i
Av. v a l u e M i n , v a l u e M a x . v a l u e T o t a l p r e c i p
| S t a t i o n 1
! / 3
¡ p c / m j 1 6 . 8 0 J 1 6 . 4 5 * 1 6 . 0 0 ¡ 1 5 , 4 0 Í 1 4 . 3 0 | 1 4 . 0 0 ¡ 1 2 , 3 0 ; 1 2 . 0 0 9 , 4 0
1,49 1 , 6 6 2 . 1 6 5 , 3 4 8 . 2 0 7 . 1 7 6 . 1 0 6 . 9 2 4 . 2 0 4 , 6 5 1.77 5 . 4 2 4 , 6 2 i 4 . 1 8 8 . 4 0 ] 9 , 7 5 j 1 0 . 6 0 j 1 1 . 4 0 j 7 . 4 8 j 7 . 3 2 j 5 . 6 0 j 8 . 2 0 ι 8 . 3 6 1 , 4 9 1 6 . 8 0 i t .
j S t a t i o n 2
! / 3
¡ p c / m { 1 8 . 5 5 ; 2 0 . 0 0 •J 16,75 | 1 6 . 0 5 | 1 4 , 8 5 J 1 4 , 0 0 | 1 3 , 1 0 | 1 1 . 6 5 ; 1 0 . 2 0 1 , 5 1 1,48 2 . 2 2 5 . 7 8 8 . 1 0 7 . 9 0 6 . o0 7 . 0 4 4 . S 4 5 . 3 8 ; 1 . 6 1 '■
6o60 j 4 , 8 2 j 4 . 3 6 j 8 . 4 0 j 1 1 . 3 5 j 1 1 . 3 5 j 1 2 , 1 0 ] 8 . 5 5 { 7 . 8 0 J 5 , 2 4 | 8 . 2 0 j 8 . 9 1
1.48 2 0 . 0 0
IN A I R A T I S P R A M A R C H
j S t a t i o n 3
! / 3
1 p c / m ¡ 1 6 . 8 0 | 1 6 . 6 5 | 1 6 . 1 0 J 1 5 . 1 5 j 1 4 , 1 6 | 1 3 , 4 0 | 1 2 . 7 0 1 0 , 1 0
9 , 2 5 1,31 1,33 l o 9 9 5 . 0 0 7 . 4 8 7 . 0 8 5 , 9 5 6 . 8 4 4 . 4 0 4 . 5 6 1.52 5 , 6 o ; 4 . 5 4 i 4 . 0 0 7 , 7 5 ] 1 0 , 0 5 | 1 0 . 6 0 j 1 1 . 3 0 j 7 . 7 0 ί
7 . 0 0 j 5 . 5 0 ¡
7 , 6 0 ί
8~,17~~ 1.31 1 6 . 8 0
1963
j S t a t i o n 4
: / 3
J Pc/m
{ 1 8 . 0 5 | 1 6 . 7 0 J 1 4 . 8 0 J 1 5 , 0 0 | 1 3 . 2 5
j 1 2 , 0 0
¡ 1 1 , 4 0 1 0 , 6 0
9 , 1 0
| 1.40
ι
l , o 2 5 , 4 6 7 . 1 6 6 . 3 2 5 . 6 8 7 . 0 3 4 . 4 2 4 . 6 4 1.58 4 , 7 2 4 . 1 8 i 4 . 16 ! 7 . 8 7 1 9 . 2 5 ί
1 0 . 8 0 I
1 1 . 5 0 i 6 . 4 0 ί 7 . 1 6 ί
5 . 5 3 i 8 . 0 5 ί i 8 . 1 9 1.40 1 8 . 0 5
ι S t a t i o n 5
! / 3 ' p c / m ί 16.20 j 1 5 . 2 5 j 1 5 . 5 0 j 1 4 . 0 0 | 1 2 . 6 0
j 9 . 9 0 j 1 1 . 3 0
1 0 . 2 0 ! 9 . 2 2
1.28 1.32
1.89 5 , 3 0 7 . 2 2 6 . 5 2 5 . 5 2 6 . 5 0 4 , 4 4 4 . 5 8 1.53 5 . 1 4 ι 4 . 3 3 !
3 . 6 3 ι 7 . 7 0 ! 9 . 5 0 ] 1 0 . 1 0 ! 1 0 . 8 0 j 6 . 4 4 ! 6 , 7 0 !
4 . 9 0 | 7 . 6 0 J
1 7 . 6 4 1.28 1 6 . 2 0
ι A v e r a g e ; value_
[
pc/m
! 1 7 . 2 8 ! 1 7 . 0 1
I 1 5 . 8 3 ! 1 5 . 1 2 ! 1 3 , 8 3 ! 1 2 , 6 6 ! 1 0 , 1 6
| 1 0 , 9 1 9 , 4 3
1.39 1,44 1.97 5 , 3 7 7 . 6 3
6 , 9 9 5 . 9 7 6 . 8 6 4 . 4 6 4 , 7 6 l.oO
5 , 4 9 ; 4 , 4 9 :
4 . 0 6 ! 8 . 0 2 ¡ 9 o 9 8 ! 1 0 , 6 9 ! 1 1 , 4 2 ! 7 . 3 1 ! 7 . 1 9 ! 5 . 3 5 ! 7 , 9 3 ' 8 . 1 4 1.39 1 7 . 2 8
ι P r e c i p i i, t a t i o n
ι m m
ί 8 , 2 ί 1 6 , 8
1.0
3 9 , 2
4 . 6
7 . 4
3 3 . 4
CONCENTRATIONS.QF G.ROS_S_BETA RADIOACTIVITY iN_AIR_A.T_ ISPRA
A P R I L 19 J 3
Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 I Station 1 / 3 p c / m
8 , 0 0 12,00 6, 18 4 , 8 3 7 , 8 4 4 , 3 0 2 , 9 3 4 . 7 2 3 . 6 2 0 . 7 5 0 . 1 0 4 . 9 4
7.10 1 3 , 6 0 ' 12.40 1 1 . 2 5 9 . 4 0
0 . 4 9 2 , 7 5 8 , 9 0 1 2 . 7 0 ί 12.00 i 5.75 i 7.56 i 6 . 6 4 ! 6 . 1 4 ! 9 o l 0 ! 1 1 . 8 0 i 1 0 . 9 0 ί 1 1 . 3 5 |
¡ Station 2
' / 3
i p c / m
i 8,80 í 1 3 . 0 0 í 6,56 ¡ 5.70 j 8.40 ; 4 , 2 0 ; 3 . 3 3
¡ 5,00 3 . 6 6 0 . 7 8
0 , 0 9 5 , 4 5 7.56 14,40 13,00 1 2 , 4 5 9 , 9 0 0 . 5 0 2 . 9 8 9 . 6 0 13.40 1 2 . 3 5 6.20 7 . 9 2 7 . 2 0 6 , 6 2 9 . 6 5 11.80 11.10 12.00
A v , v a l u e 7 . 3 3 M i n . value 0 . 1 0 M a x , value 13.60 T o t a l p r e c i p i t .
Station 3 3 p c / r
8 . 1 0 1 2 . 2 0 6.10 4 . 9 4 7 . 9 0 4,18 3 . 0 8 4 , 6 5 4 , 7 6 0 , 7 0 0 . 0 9 4 , 7 6 7 , 3 0 12.90 1 2 , 2 5 1 1 , 3 5 9 . 2 0 0 , 5 4 2 . 7 1 9 . 0 0 1 2 , 4 5 11,50 5 . 6 2
6 . 6 8
6 . 3 4
9 . 2 5
1 1 . 5 0 10,90
11.40
Station 4 3
A
p c / m7 , 9 0 12,30 6.10 5 . 5 0 7 . 7 4 3 . 8 7 3 . 0 2 4 . 5 6 3 . 7 8 0 . 7 7 0 , 0 9 4 . 9 5 7,26 13,20 11,50 11,10 9 , 5 0 0 , 4 7 2 , 6 7 9 . 0 0 12,60 1 1 , 7 5 5.98 6 . 6 5 6 , 6 5 5,80 8,50 1 1 , 3 5 1 0 , 6 5 11.20
Station 5
3
A
p c / m7 . 5 0 12.20 6 . 1 2 5,22
3 , 8 0 3 . 0 4 4 . 3 6 3,40 0 . 6 5 0 , 1 0 4 , 6 0 7,06 1 2 , 2 5 1 1 , 0 5 1 0 , 8 5 8,60 0 , 4 6 2 . 5 4 3 . 4 0 11,50 1 0 . 8 5 5 . 4 8 6.40 5 . 8 2 5 . 7 4 8, 10 11.00
9 . 7 0 1 1 . 2 5
A v e r a g e v a l u e -p c / m
8 . 0 6 1 2 , 3 4 6 . 2 1 5 , 2 3 7 , 9 7 4.0 7 3 . 0 8 4 . 6 5 3 . 8 4 0 . 7 3 0 . 0 9 4 . 9 4 7 , 2 5 1 3 . 2 7 1 2 , 0 4 11.40 9 . 3 2 0 . 4 9 2 , 7 3 8 , 9 8 1 2 . 5 3 1 1 . 6 9 5 . 8 0 7 . 1 3 6 . 5 9 6 . 1 2 8 . 9 2 1 1 . 4 9 1 0 , 6 5 1 1 , 4 4
P r e c i p i . t a t i o r
m m 7« 0, 14, 78 09 40 7« 0, 120 32 09 90 7, o, 13, ,21 09 20 6, 0, 12, 82 10 25 7 0 13, .30 09 27
9 . 2
6 , 4
4 4 , 8 9 . 2
7,8
3 5.2
4 5 . 4
0,8
3 5 , 2
4 , C
0 , 4
7 .6
1,6
15,0
CONCENTRATIONS OF GROSS BETA RADIOACTIVITY IN AIR AT'ISPRA
MAY 19o3 Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Station 1
i ' /
3' p c / m ι 12.00 - 8.50 5.26 3.80 8.85 7.82 7.86 10.00 -6.86 3.42 9oo0 10.00 8.25 4 . 0 5 1.75 7.20 7.88 12.80 7.28 6.92
-7.58 8.90 14.40 11.40 -8.50 9.55 9.70 12.70 10.80
! Station 2
/ 3
ι p c / m
! 11.60 ! 8.60 ! 5.60
' 3.60 9.55 ! 8.20 8.30 10.20 7.80 7.28 3.41 9.85 10.30 8.35 3.90 1.84 7.12 7.90 13.15 6.92 6.8 6 7.30 8.85 14.00 11.40 9.10 8.75 9.60 9.25 13.20 10.90 ; Station 3
/ 3
p c / m
11.20 8.15 5.50 3.26 8.70 7.60 S.00 10.30 7.16 6.76 3.24 9.65 9.92 7.80 3.97 1.81 7.04 7.80 12.40 6.84 7.00 7.20 8.76 14.15 10.95 9.10 8.50 9.20 9.20 •12.90 10.50 ; Station 4
/ 3
p c / m
1 1 . 9 0 · 8.95 5.56 -8.75 7,96 7.82 9.30 7.70 6.64 3.20 9.60 9.92 8.30 4.08 1.79 6.60 7.40 12.90 6.85 6.48' 7.08 8.76 14.00 10.98 8.70 8.40 9.20 9.40 12.80 10.60 ; Station 5
/ 3
p c / m -— ' 11.20
-3.15 8.00 6.90 6.84 9.10 7.00 6.06 3.09 9.14 9.40 8.00 3.72 1.80 6.25 6.65 11.80 6.30 6.13 6.56 8.25 12.50 9.90 8.50 7.72 8.75 8.50 11.90 9.90 J Average value p c / m3
11.58 8,55 5.48 3.45 8.77 7.69 7.76 9.78 7.41 6.72 3.27 9.56 9.90 8.14 3.94 1.79 6.84 7.52 12.61 6.83 6.67 7.14 8.70 13.81 10.92 8.85 8.37 9.26 9.21 12.70 10.54
P r e c i p i tation
m m
6 . 2 40.0 3 8 . 4
8 . 2
5 . 4 19.0
29.6 1.2 0 . 2
13.6
0 . 4 4 . 0 3 . 2
0 . 6
Av. value" 8.40 Min. value 1.75 Max. value 14.40 Total p r e c i p i t .
C O N C E N T R A T I O N S O F GROSS B E T A R A D I O A C T I V I T Y
D a y
1 2 3 4 5 6 7 8 9 10 11 12 13 1 4 15 16 17 18 19
2 0 !
2 1 I
2 2 !
2 3 !
2 4 !
2 5 Î
2 6 !
2 7 Ì
28 !
29 !
30 ;
A v , v a l u e M i n . v a l u e M a x . v a l u e T o t a l p r e c i p i t .
¡ S t a t i o n 1
! / 3 ι p c / m
J 9 . 8 5
j 1 1 . 9 6
| 5 . 7 5
j 1 , 3 7
| 4 , 6 2
| 6 , 7 4
j 5 . 3 6
| 1 . 6 6
| 3 , 0 0
| 8 . 2 0
j 6 . 6 0
5 . 4 8
! 6 . 6 8
3 , 7 0
6 . 6 8
3 . 9 5
0 , 5 2 ;
1 5 . 7 0 j
1 6 , 0 5 I
8 . 0 5 !
9 . 4 5 ¡
4 . 5 2 ¡
ι
1 . 9 3 !
6 , 8 8 J
8 . 7 0 ί
8 , 5 5 ί 1 2 . 5 0 ί 1 8 . 1 0 i
1
7 . 5 5 1 , 3 7 1 8 , 1 0
ί S t a t i o n 2 / 3
ι p c / m j 1 0 , 1 0 ! 1 1 , 6 0 j 8 . 3 0 j 1 , 4 4 j 4 , 6 0 j 7 , 0 4 J 5 . 5 0 | 1 . 7 8 ί 4 . 1 4
8 . 6 5 ! 6 , 5 0
5 . 5 6 6 . 7 0 3 . 8 7 6 , 9 2 4 , 8 4 3 . 9 1 6 . 5 0 1 5 , 0 0 1 5 , 7 0 !
7 , 7 0 ί 8 . 1 0 ί 4 . 4 2 ! 6 . 5 6 î 1 . 7 7 î
7 . 1 0 !
9 . 1 0 ;
8 . 6 0 !
1 2 . 2 5 ί 1 7 . 8 0 I
I
7 . 4 0 1 . 4 4 1 7 . 8 0
I N A I R A T I S P R A J U N E
¡ S t a t i o n 3
ί
/ 3
ι p c / m J 9 . 6 0 j 1 1 . 2 0 j 7 . 8 0 j 1 . 3 3 | 4 . 2 8 j 6 . 4 8 } 5 . 0 9 J 1 - 5 4 j 3 . 9 7 | 7 . 8 5
6 . 3 6
'\ 5 . 2 0 6 . 5 2 3 , 6 2 6 . 4 4 4 , 6 5 3 , 8 6 6 . 4 4 1 4 , 6 5 j 1 5 . 5 0 I
:
8 . 5 5 ! 4 . 4 5 ! 6 , 0 0 !
«
1 , 7 0 ! 6 , 8 0 ! 9 . 0 0 ί 8 . 4 5 î 1 2 . 4 5 !
1 7 . 4 0 !
7 . 1 4 1 . 3 3 1 7 . 4 0
.1963
i S t a t i o n 4
ί /
3ι p c / m J 1 0 . 0 5 j 1 1 . 7 0 | 8 . 0 5 j 1 . 3 6 j 4-.-6-Θ | 6 . 3 6 j 5 . 4 6 | 1 . 6 8 j 3 . 7 3 " " [ 7 . 3 6
6 . 3 0 5 . 4 0 6 , 5 5 3 , 7 2 6 . 3 4 4 , 6 4 3 , 5 4 \
6 . 3 2 ! 1 4 , 8 0 ¡ 1 5 , 0 0 ! 6 . 8 0 !
8 . 5 5 !
4 . 3 6 ! 6 . 2 6 1
1 . 8 6 ί 6 . 4 0 ! 8 . 6 0 ! 8 , 8 0 ! 1 2 , 0 5 ! 1 7 , 4 0 ί
7 , 1 3 1 . 3 6 1 7 . 4 0
ι S t a t i o n 5 ! / 3 ι p c / m j 8 . 9 0 j 1 0 . 2 0 j 7 , 1 4 J 1 . 3 6 | 4 . 1 8 | 5 . 6 0 j 5 . 0 0 j 1 . 4 9
" ~ " " 3 . 4 7 L, 6 . 6 5
6 . 0 5 4 . 9 0 5 . 7 6 3 . 0 4 5 . 4 4 4 . 2 8 3 , 0 6 . 5 , 6 0 ! 1 3 , 2 0 '
1 3 , 3 0 ! 6 . 4 0 ! 7 . 0 4 i 3 . 9 2 ί 5 , 7 3 ί 1 , 6 6 î 6 , 0 0 !
8 , 1 0 ί 7 , 8 0 i 1 1 . 2 0 ,' 1 6 , 0 0 j
6 , 4 1 1 . 3 6 1 6 . 0 0
ι A v e r a g e : v a l u e ; p c / m j 9 . 7 0 | 1 1 . 3 3 | 8 , 0 0 | 1 . 3 7
\ 4 , 4 5 | 6 . 4 4 j 5 . 2 8 j 1 , 6 3 | 3 , 6 6 | 7 , 7 4 f 6 . 3 6 ί 5 , 3 0
6 , 4 4 3 . 5 9 6 , 3 6 4 , 6 0 3 . 6 6 . b . 2 7 : 1 4 , 6 7 j 1 5 , 1 1 i 7 . 2 3 ! 8 , 3 3 ! 4 . 3 3 ! 6 . 1 3 ί 1 . 7 8 i 6 . 6 3 ί 8 . 7 0 ί 8 . 4 4 ! 1 2 . 0 9 ! 1 7 , 3 4 ί
7 . 0 9 1 . 3 7 1 7 . 3 4
ι P r e c i p i ι tatio.1 ι m m J 8 , 2 j 0 . 2
j 3 . ó
j 4 0 . b
J 2 6 . 4
j 8 . 8
j 1 0 , 8
1
7 . 0
| 0 , 2
: 0 , 2
0 . 4
1 1 , ü
5 5 . C
0 , 8
0 , 2
1ο2
1,2
1 4 , 8
5 1 , 0
1 6 . 4
1.0
C O N C E N T R A T I O N S O F GROSS B E T A R A D I O A C T I V I T Y IN A I R A T I S P R A
J U L Y 1963
D a y
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2 1 2 2
23 ¡
2 4
2 5
26 j 27 | 28 | 29 j 30 | 31 |
j S t a t i o n 1
! / 3
1 p c / m ¡ 1 4 . 4 0 ! 1 6 . 2 5 ! 1 2 . 3 0 ! 8 . 4 5 ! 5 . 8 0 7 . 2 0 8 . 3 0 8 . 6 0 5 . 9 0 7 . 8 0 8 . 4 0 6 . 5 6 5 . 5 0 9 . 2 0 1 0 . 3 0 1 0 . 4 0 6 . 6 6 1 0 . 2 0 8 . 9 0 1 2 . 3 0 1 5 . 7 0 1 3 . 1 0
8 . 9 0 j 8 , 9 5 8 . 8 5 6 . 2 8 ] 7 . 7 2 | 7 . 7 6 j 8 . 9 5 ] 1 0 . 0 5 | 7 . 4 4 ]
1 S t a t i o n 2
! / 3
' p c / m J 1 5 . 0 5 | 1 5 . 7 0 | 1 1 . 6 0 ¡ 1 0 . 4 0 6 . 0 0 ! 7 . 6 0 : 8 . 1 0 8 . 8 5 5 . 8 8 7 . 5 2 8 . 8 0 6 . 5 0 5 . 6 0 8 . 9 0 1 0 . 1 0 1 0 . 3 0 6 . 1 4 9 . 9 4 8 . 8 0 1 2 , 5 0 1 5 . 0 0 1 2 , 9 0
8 . 4 5 ; 8 , 5 5 ] 8 . 6 0 | 6 . 2 6 j 7 . 7 4 ] 7 . 6 5 j 8 . 5 0 | 1 0 . 0 3 | 6 . 9 0 j
ι S t a t i o n 3
ί /
3ι p c / m
,' 1 4 . 1 0
¡ 1 5 . 0 0 ¡ 1 1 . 7 0
; l o . i o
5 . 7 6 i 7 . 2 0
8 . 3 0 8 . 5 5 5 . 6 6 7 . 5 2 8 . 5 0 6 . 4 0 5 . 5 4 8 . 9 5 1 0 . 1 0 1 0 . 2 0 6 . 0 8 9 . 7 0 8 . 6 5 1 3 , 6 0 1 5 . 0 0 1 2 . 4 5 ■
8 , 3 0 i 8 . 4 5 : 8 . 5 0 j 6 , 0 8 7 , 4 7 j 7 , 4 8 8 . 4 0 j 1 0 . 0 5 | 7 . 0 0 |
ι S t a t i o n 4
! / 3
ι p c / m ¡ 1 3 . 3 5 1 1 5 . 5 0 1 1 . 5 0 ¡ 1 0 . 3 0 ! 5 . 7 0 6 . 8 0 8 . 3 5 8 . 4 0 5 . 1 6 7 . 2 0 8 . 7 0 6 . 5 0 5 . 5 7 8 . 5 0 9 . 4 5 9 . 5 0 7 . 0 5 9 . 3 0 j 8 . 7 0 1 1 . 7 5 1 4 . 6 5 1 2 . 7 5 8 . 4 0 8 . 3 5 8 . 4 0 6 . 0 4 7 . 5 0 | 7 . 3 2 j 8 . 0 8 j 9 . 2 5 | 6 . 5 6 |
ι S t a t i o n 5
' / 3
ι p c / m | 1 2 . 8 0 | 1 4 . 3 0 1 0 . 8 0
9 , 5 0 ! 5 . 2 2
6 . 3 0 7 . 5 0 7 . 5 2 4 . 9 0 6 . 7 0 7 . 8 0 5 . 8 4 5 . 4 0 7 . 6 0 9 . 1 0 9 . 1 0 7 . 0 0 8 . 8 0 ι 7 . 5 5 1 1 . 1 0 1 4 . 0 0 1 1 . 3 0 7 . 6 7 7 . 8 0 7 . 2 8 i 5 . 4 3 j 6 . 4 0 6 . 4 0 ] 7 . 1 0 1 8 . 3 5 j 6.10 I
ι A v e r a g e ( v a l u e _ ι p c / m J 1 3 . 9 4 1 5 . 3 5 | 1 1 . 5 8
9 . 7 5 · ; 5 . 6 9
7 . 0 2 8 . 1 1 8 . 3 8 5 . 5 0 7 . 3 4 8 . 4 4 6 . 36 5 . 5 2 8 . 6 3 9 . 8 1 9 . 9 0 6 . 5 8 9 . 5 8 : 8 . 5 2 1 2 , 2 5 1 4 . 8 7 1 2 , 5 0
8 , 3 4 \
8 . 4 2 8 . 3 2 6 . 0 1 i 7 . 3 6 ! 7 . 3 2 ! 8 . 2 0 ! 9 . 5 4 ! 6 . 8 0 !
ι P r e c i p i ι t a t i o n
ι m m
| 4 . 6
0 . 2
5 2 . 6
2 . 6
1 6 . 8
3 . 2
4 1 . 2
7 7 . 2
0 . 2
6 . 0
0 . 4
1 . 2
0 . 4
4 . 4
Av. v a l u e 9 . 2 6 M i n . v a l u e 5 , 5 0 M a x . v a l u e 1 6 . 2 5 T o t a l p r e c i p i t .
9 . 1 8 5 . 6 0 1 5 . 7 0
9 . 0 5 5 . 5 4 1 5 . 0 0
8 . 8 5 5 . 1 6 1 5 . 5 0
8 . 1 5 4 . 9 0 1 4 . 3 0
8 . 9 0 5 . 5 0 1 5 . 3 5
. C O N C E N T R A T I O N S O F GROSS B E T A R A D I O A C T I V I T Y IN AIR A T I S P R A
AUGUST 1963 Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2 1 22 23 :
2 4 25 26 27 28 29 30 31
1 S t a t i o n 1
— x·— ! î ! ' I ] î ί : ΐ ι : J ] ι ; ι ι 1 : Ι ■ 1 ι ί 1 Γ ι ι 1 ! ι ! ) 1 ί 1 i 1 ι i ¡ i ì
1 3
p c / m
8 . 0 0 1 1 . 4 5 1 3 , 1 0 1 1 . 9 0 1 2 . 7 0 9 . 4 5
-5 . 3 -5 6 . 2 0 8 , 8 0 7 . 6 0
3 . 3 0 2 . 0 5 3 . 9 5 3 . 0 6 3 . 3 3
3 . 1 4 2 . 6 6 3 . 4 2 3 . 8 1 2 . 4 5 2 . 1 6
2 , 6 9 2 . 6 6 2 . 8 8 3 . 6 3 1.34 2 . 1 5 4 . 1 6 5 . 2 0 6 . 4 4
S t a t i o n 2 j
/ 3 !
p c / m '
8 , 0 0 ; 1 1 . 5 5 j 1 3 . 1 0 j 1 2 . 0 0 } 1 2 . 3 0 j 9 . 6 4 ; 6 . 7 4 j 5 . 3 6 ; 6 . 7 8 ;
9 . 0 0 J 7 . 2 0 j 3 . 2 8 j 2 . 1 6 ) 3 . 9 0 j 3 . 1 7 \
3 . 3 3 j
3 . 4 7 | 2 . 7 2 j 3 . 52 \
3 . 7 5 ] 2 . 4 2 | 2 . 2 8 | 2 . 5 5 } 2 . 5 5 j 3 . 0 6 | 3 . 7 3 | 1.12 j 2 . 2 2 j
3 . 8 5 | 5 . 5 2 . j 6 , 5 2 !
ί
S cation 3
/ 3 p c / m
8 . 1 5 1 1 . 5 5 1 2 . 8 0 1 1 . 8 5 1 2 . 7 5 9 . 6 0 6 . 6 0 5 . 3 2 6 . 4 8
8 . 9 0 7 . 1 6
3 . 4 0 2 . 1 0
4 . 0 5 3 . 1 5 3 . 1 5 3 . 3 0 2 . 6 0 3 . 4 6 3 . 7 7
-2 . 3 -2
2 . 5 0 2 . 5 0 2 . 8 5
3 . 6 0 1.28
2 . 0 9 4 . 2 8 5 . 0 0 6 . 0 6
S t a t i o n 4
/ 3 p c / m
8 . 0 5 1 0 . 9 5
1 2 , 2 5 1 2 . 0 0
1 3 . 0 0 1 0 . 0 0 6 . 6 2 5 . 1 7 6 . 2 4
8 . 3 0 6 . 9 0 3 . 3 4 2 . 0 0 3 . 8 0 3 , 2 6
3 . 2 8 3 . 2 3 2 . 6 1
3 . 2 0
-1.22
2 . 1 4 4 . 2 2
4 . 8 4 6 , 4 4
S t a t i o n 5
/ 3 p c / m
7 . 3 6 1 0 . 2 0 1 1 . 7 0 1 1 . 1 0
1 1 , 6 5 9 . 2 5
6 . 0 8 4 . 6 8
6 . 0 0 8 . 0 5 6 . 3 6
3 . 0 0
1.86 3 . 4 5 2 . 9 3 3 . 0 0 3 . 1 0 2 . 4 0 3 . 1 7 3 . 5 0 2 . 0 3
1.79 2 . 2 7 2 . 3 0 2 . 3 5 3 . 2o
1.10 1.84 3 . 7 6
4 . 4 6 6 . 0 2
A v e r a g e v a l u e p c / m
7 . 9 1 1 1 . 1 4
1 2 . 5 9 1 1 . 7 7
1 2 . 4 8 9 . 5 8
6 . 5 1 5 . 1 7 6 . 3 4 8 . 6 1 7 . 0 4 3 . 2 6 2 . 0 3 3 . 8 3 3 . 1 1 3 . 2 1 3 . 2 4
. 2 . 5 9 3 . 3 5
3 . 7 0 2 . 3 0 2 , 1 3
2 . 5 0 2 . 5 0 2 . 7 8 3 . 5 5 1.21 2 . 0 8
4 . 0 5 5 . 0 0
6 . 2 9
P r e c i p i t a t i o n m m
0 . 2
9 . 8
1 2 . 2
8 . 4
0 . 4
7 . 8
1 6 . 8 1 4 . 8
4 . 6
2 6 . 0
1.8 0 . 4 0 . 2
0 . 2
0 . 2
0 . 2
O . b
A v . v a l u e M i n . v a l u a M a x . v a l u e T o t a l p r e c i p i t o
5 . 3 0 1.34 1 3 . 1 0
5 . 3 8 1.12 1 3 . 1 0
5 . 4 2 1.28 1 2 . 8 0
5 . 9 6 1.22 1 3 . 0 0
4 . 8 3 1.10 . 1 1 . 7 0
5 . 2 2 1.21 1 2 . 5 9
C O N C E N T R A T I O N S O F CROSS B E T A R A D I O A C T I V I T Y IN AIR A T I S P R A
S E P T E M B E R 1963
D a y
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 2 4 25 26 27 28 29 30
S t a t i o n 1 / 3 p c / m
2 . 5 6 1,62 4 . 4 5 4 . 7 2 0 , 7 3 1 , 4 1 1 , 6 4 1.38
1.49
1.53 2 . 0 7 2 . 7 0
3 . 0 6
2 , 9 3
2 , 8 6
3 , 4 7
4 , 0 8
3 . 1 2
1 , 9 6
0 , 6 4
0 , 9 2
; 0 , 8 6 1,45
1,65
4 , 1 6
5 . 9 0
4 . 4 4
3 , 5 7
3 . 4 0
3 . 5 4
S t a t i o n 2 / 3
p c / m
• 2 . 5 8
1 , 5 5
4 . 6 4
4 , 6 6
0 . 6 6
1 . 5 5
1 . 5 7
1 . 4 0
1 . 2 2
1 . 4 6
2 , 1 6
2 , 6 6
3 , 0 0
3 . 0 5
2 . 8 7
3 , 1 7
4 , 5 0
3 , 0 0
2 . 0 3
0 , 5 2
0 , 9 4
0 , 8 6
1 , 4 0
1 . 7 2
4 . 0 9
6 . 1 4
4 . 4 4
3 , 5 5
3 , 2 J
3 , 5 7
[ S t a t i o n 3
! / 3
J p c / m
j 2 , 5 8
| 1 , 4 6
4 , 3 6
' 4 . 2 8
0 . 6 5
1 . 4 2
1 , 4 9
1 , 2 6
1 . 3 8
1 . 4 8
2 . 0 6
2 , 6 6
3 . 0 0
3 . 0 4
2 , 8 6
3 . 3 1
4 . 2 8
2 . 8 0
1 . 9 2
0 . 6 0
0 . 3 6
0 , 7 9
1 , 2 7
1 , 5 6
4 . 0 0
5 , 6 8
4 . 2 8
3 . 4 0
3 . 0 7
3 . 4 6
• S t a t i o n 4
! / 3
: p c / m
"I
ι 2 . 4 2 j 1 . 4 5
| 4 , 5 6
! 4 . 5 6
1 0 . 6 0
| 1 . 4 9
j 1 , 4 6
j 1 . 2 9
! 1 . 2 8
i 1 . 0 8
i 1 . 5 1
î 2 . 7 6
\ 3 . 0 0
! 2 . 8 6
! 2 . 7 2
ί 3 . 1 5 ! 4 , i o ! 2 , 8 2 ! 1 , 9 4 Ί 0 . 5 0 ί 0 . 7 8 ! 0 . 6 8 ! 1 . 1 5 ί 1 . 5 9 ! 3 . 8 8 ! 5 . 3 2 i 4 . 2 4 ί 2 , 7 3 ! 2 , 9 3 ί 3 . 4 0
¡ S t a t i o n 5
' / 3
ι p c / m ι
2 . Í S
1 . 3 8
4 . 17
0 . 5 2
1 . 1 2
1 . 3 0
1 . 1 2
1 . 0 5
1 . 2 4
1 . 4 1
2 . 3 4
2 . 6 2
2 . 4 7
2 . 3 0
3 . 0 0
3 , 5 8
2 , 3 6
1 . 6 8
0 . 5 0
0 . 6 6
0 , 6 4
1 , 1 0
1 » 43
3 . 8 8 ,
5 . 0 0
3 , 5 2 j
2 . 5 5
2 . 5 9
3 . 1 5 ;
A v e r a g e v a l u e p c / m
2 . 4 Ó
1 , 4 9
4 . 4 3
4 . 5 5
0 . 6 3
1 . 3 9
1 . 4 9
1 . 2 9
1 , 2 8
1 . 3 5
1 . 8 4
2 . 6 2
2 . 9 3
2 , 8 8
2 , 7 2
3 , 2 2
4 , 1 0
2 , 8 2
1 . 9 0
0 , 5 5
0 . 8 3
0 , 7 6
1 , 2 7
1 , 5 9
4 , 0 0
5 , 6 0
4 , 18
3 . 1 6
3 . 0 5
3 , 4 2
j P r e c i p i i t a t i o n
i m m
', 4 0 . 8
| 3 4 . 0
! 2 . 4
i 4 6 . 4
! 3 0 . 0
i 1 8 , 8
ί 0 . 2
î 0 , 2
;' 0 , 2 ! 0 , 2
! 0 , 2
i 0 . 4
! 3 . 0 ¡ 1 1 . 6
! 6 . 0
! 0 . 2 ! 0 . 2
: 9 , 4
Ì 1.2
¡ 0 . 4
! 0 . 4
ί 0 . 2
A v . v a l u e 2 . 6 1 M i n , v a l u e 0 , 6 4 M a x , v a l u e 5 , 9 0 T o t a l p r e c i p i t .
2 , 6 0 0 , 5 2 6 . 1 4
2 . 5 0 0 . 6 0 5 , 6 8
2 . 4 0 0 . 5 0 5 . 3 2
2 . 0 9 0 . 5 0 5 , 0 0
2 . 4 6 0 . 5 5 5 . 6 0
CONCENTRATIONS OF GROSS BETA RADIOACTIVITY
D a y
1 2 3 4 5 6 7 8 9 10 11 1 2 13 1 4 15 16 17 18 19 2 0 2 1
2 2 ;
2 3 I
2 4 !
2 5 !
2 6 !
2 7 j
2 8 i
2 9 !
3 0 î
3 1 ]
J S t a t i o n 1
! / 3
ι p c / m | 3 . 6 Ό
| 1 , 5 8 ] 0 . 1 4 | 0 . 7 0 | 2 . 4 6
[
l . o o
! 0 . 3 8 2 . 1 4 3 . 3 2 2 . 9 0 2 . 2 8 2 . 1 4 2 . 5 0 2 . 5 7 3 . 9 4 4 . 8 0 3 . 7 6 2 . 9 0 3 . 6 7 3 . 4 2 2 . 6 8 205 4
2 . 5 5
2 . 6 4 1 3 . 0 7 ! 1 . 4 1 j 1 , 8 4 ¡ 1 . 6 6 |
1 . 9 5 !
1 . 6 8 1
0 . 6 2 !
J S t a t i o n 2
' / 3
ι p c / m
| 3 . 6 4
j 1 , 4 8
| 0 , 1 4
| 0 . 7 4
| 2 , 5 0
| 1 . 0 6
! 0 . 4 0
| 2 . 1 6
! 3 . 1 4
! 2 . 7 6
2 , 3 6
! 2 . 2 6
2 , 3 4
2 . 7 4
3 . 7 6
4 . 7 4
3 . 6 2
2 . 7 6
3 . 8 6
3 . 5 0
2 . 3 2
2 , 6 0
2 . 3 7
2 . 5 6
3 . 4 2 !
1 . 4 3 !
1 . 7 8 ]
1 , 4 0 !
1 . 8 0 ¡
1 . 4 7 j
0 . 5 7 ',
I N A I R A T I S P R A
O C T O B E R 1 9 6 3
J S t a t i o n 3
' / 3
ι p c / m
j 3 . 3 1
] 1 . 4 2
j 0 . 1 2
| 0 , 7 4
| 2 . 5 6
| 1 . 1 2
! 0 . 3 8
2 . 1 1
! 3 . 2 2
\ 2 . 6 8
2 . 3 2
; 2 . 1 8
2 . 3 2
2 , 5 5
3 . 5 2
4 . 3 6
3 . 4 3
2 . 9 0
3 . 5 4
3 , 2 0
2 . 4 3
2 . 5 7
2 „ 3 3 !
2 . 7 3
3 . 1 2 1
1 . 3 9 !
1 . 9 3 j
1 . 5 6 !
2 . 0 0 !
1 . 6 0 ί
0 . 6 0 ί i S t a l ! p c
i
2
| i
ï 0<
| 0
i
2<
°'
0c
i 2C ; 3C
le .
: i o n 4
/ ™3
, 8 6
, 2 0
, 1 4
. 6 6
4 4 8 5 2 2 0 0 12 70
J S t a t i o n 5
! / 3 ι p c / m
| 3*. 2 2
¡ 1 . 2 8
| 0 , 1 3
| 0 , 5 8
| 2 . 0 0
0 , 9 0
| 0 , 2 2
' 1 . 9 4
| 2 . 8 2
2 , 1 4
1 . 7 8
2 . 0 0
2 , 0 0
2 , 2 4
3 . 0 4
3 . 6 2
2 . 7 4
2 . 0 0
3 . 0 2
2 . 1 7 i
1 . 5 6 :
1 , 3 1 !
1 . 4 7 !
2 . 1 7 !
2 . 7 5 !
1 . 0 0 !
1 . 3 6 !
0 . 9 7 !
1 . 1 0 ί
0 . 7 4 ! 0 . 6 1 !
¡ A v e r a g e i v a l u e ι p c / m
¡ 3 . 3 2
j 1 . 3 9
} 0 . 1 3
j 0 . 6 8
| 2 . 3 9
j 0 . 9 8
! 0 , 3 2
1 2 . 0 7
3 . 1 2
2 . 4 3
2 , 1 8
2 , 1 4
2 , 2 9
2 . 5 2
3 , 5 6
4 , 3 8
3 , 3 8
2 . 6 4
3 . 5 2
3 . 0 7
2 . 2 4
2 , 2 5 I
2 . 1 8 !
2 . 5 2 !
3 . 0 9 |
1 . 3 0 !
1 . 7 2 j
1 . 3 9 !
1 . 7 1 !
1 . 3 7 ί
0 . 6 0 î
{ P r e c i p i j t a t i o n ι m m
4_
j 4 9 , 8
| 1 6 . 4
| 0 . 4
| 1 . 2
0 . 4
0 . 2
0 . 2
0 . 2
0 . 2
0 . 4
0 . 2
0 . 4
0 . 4
0 . 2
0 . 2
0 . 4
0 . 2
0 . 4
0 , 2
0 , 2
0 . 2
2 7 . 2 A v .
M i n . M a x . T o t a l
v a l u e v a l u e v a l u e p r e c i p i t .
2 . 3 4 0 . 1 4 4 . 8 0
2 . 3 1 0 . 1 4 4 . 7 4
2.26 0 . 1 2
4.36
1.51 0 . 1 4 3.12
1.77 0,13 3.62
2 . 1 5 0 . 1 3 4 , 3 8
C O N C E N T R A T I O N S O F GROSS B E T A R A D I O A C T I V I T Y IN AIR A T I S P R A
N O V E M B E R 19o3
1
D a y |
ι
!
2 !
3 î
4 !
5 !
6 !
7 !
8 !
9 !
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
S t a t i o n 1 J
/ 3 !
p c / m 0 . 0 3 ! 0 , 4 4 1 0 . 0 7 ! 0 . 1 6 ! 0 . 4 4 ! 0 . 5 3 i 0 . 5 2 !
1.30 1
1.57 ! 1.20 ! 0 . 2 0 ! 0 , 6 4 ¡ 1 , 6 5 ! 1 . 5 3 0 . 7 3 0 . 1 4 1,90 2 . 1 6 2 , 3 0 1,92
ί 1.20
¡ 1.30 ! 1,37
! 1.35 ¡ 0 . 3 6 ¡ 0 . 5 6 ! 2 , 7 5 J 0 , 8 2 j 0 . 5 2
| 0 . 3 9
1
S t a t i o n 2 ¡
/ 3 !
p c / m
0 . 0 3 !
0 , 4 5 ! 0 . 0 7 ί 0 . 1 3 !
0 . 4 4 ! 0 . 5 2 !
0 , 5 8 ! 1,24 !
1.59 1,05 0 , 0 7 0 , 5 3 1.48 1.47 0 . 6 6 0 , 1 4 1,85
2 . 2 9 2 , 3 4
1.95 1.26 1,22 1,45 ; 1,36 ! 0 , 2 6
ί 0 , 6 4 2 , 7 3 I 0 . 8 1 j 0 . 5 5
¡ 0 , 3 9
j
S t a t i o n 3 J £
/
3
ΐ
p c / m
0 , 0 4 ί 0 . 3 8 ! 0 . 0 6 ! 0 , 1 5 !
0 , 3 9 ¡
0 , 4 7 ¡ 0 , 4 7 ! 1.21 j 2 . 6 8 ί 1,12 !
0 , 0 7 î
0 . 5 2 ! 1,56 ,' 1,42 i 0 , 6 8 ! 0 . 1 7 ί
1 , 86 ¡
2 . 1 2 i ! 2 . 3 2 ¡
ί 1.91 ! ! 1.12 ! ! 1,28 ! ! 1,43 ! ! 1,36 !
I 0,29 !
I 0 . 6 7 !
J 2 . 5 2 ¡
! 0 . 7 8 ¡ J 0 . 5 6 j { 0 . 3 8 ',
Station 4 |
/
3ί
p c / m J
î
!î
ΐ
! ! Ί 1.09 ! 1.37 ! 1,21 0 , 0 2 0 . 2 5 1,03 2 , 0 0 0 , 7 0 0 , 1 4 1,66 ! 2 , 0 0 ! 2 , 1 6i 1.74 ! 1.08
;
L I O ¡ 1.86 ! 1.21¡ 0 , 2 9 ¡ 0 . 5 1
2 , 4 3 i 0 . 7 8
i 0 , 5 5 ! 0 . 3 1
S t a t i o n 5
/ 3
p c / m
0 . 0 3
0 . 3 9 0 . 0 8 0 . 1 3 0 . 3 6 0 . 4 0 0 . 5 0 1.22 1.51 1.10 0 . 0 6 0 . 3 8 1.46 1.46 0 . 6 8 0 . 1 6 1.75 2 , 0 5 ! 2 . 1 5
! 1.81 ! 1.14 ! 1.25 í 1.30 ¡ 1.08 ! 0 . 3 4 i 0 . 6 3
! 2 . 5 7 i 0 . 7 9 J 0 , 5 4 ! 0 . 3 4
¡ A v e r a g e } J v a l u e - J ] p c / m |
ί 0 , 0 3 !
ί 0 , 4 1 î
! 0 . 0 7 ! î 0 . 1 4 ! ! o . 4 0 ! ! 0 , 4 8 î ! 0 . 5 1 !
ί 1.21 ¡
! 1.74 ! ! 1.13 ! ! 0 , 0 8 ; î 0 . 4 6
ί 1.43 -! 1.57
ί 0 . 6 9 ! 0 . 1 5 i 1,80 ί 2 . 1 2 ! 2 . 2 5 ί 1,86 i 1.16 ! 1.23
', 1.49
¡ 1,27 î 0 , 3 0 ', 0 , 6 0 ! 2 , 6 0 ! 0 . 7 9 J 0 , 5 4 ! 0 , 3 6
P r e c i p i -t a -t i o n
m m
4 7 . 4 1 4 . 8 3 6 . 4 5 2 . 2 7 8 . 4
3 7 . 4 1 1 . 2 0 . 2
5 . 2 2 . 8 2 . 6 0 . 2
1 4 . 0 1 7 . 8 0 . 4
! 2 1 . 4 ,' 1 2 , 8 ! 1 1 . 8 ! 4 , 0
Av. v a l u e Min. v a l u e Max, v a l u e Total p r e c i p i t .
1.00 0 . 0 3 2 . 7 5
0 . 9 8 0 . 0 3 2 , 7 3
_x_ 1.00 0 , 0 4 2 . 5 2
1,10 0 . 0 2 2 , 4 3
0 . 9 2 0 . 0 3 2 . 5 7
0 . 9 6 0 , 0 3 2 , 6 0
CONCENTRATIONS OF GROSS BETA RADIOACTIVITY
D a y
1 2 3
4 .
5 6 ■7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
22 |
23 ]
24 «
25 |
26 |
27 j
28 |
29 j
30 |
31 j
A v . v a l u e M i n . v a l u e M a x . v a l u e
T o t a l p r e c i p i t
i S t a t i o n 1
i / 3
j p c / m
J 0 . 5 6 j 1 . 1 5 j 0 . 6 4 | 0 . 0 5 | 0 . 2 4 j 0 . 8 4
| 1.46
¡ 1 . 5 4 | 2 . 4 2 3 . 4 8 | 4 . 0 8
3 . 1 2 1 . 6 7 1 . 0 8 1 . 5 0 1 . 9 1 1 . 7 9 2 . 2 4 2 . 5 8 1 . 9 3 ] 1 . 5 6 · |
1.39 j
1 , 4 6 ] 0 . 9 0 | 0 . 5 0 | 0 . 6 6 | 1 . 2 6 |
2„09 |
2 . 1 6 | 2 . 4 8 ï 1 . 6 2 0 . 0 5 4 . 0 8
0
1 S t a t i o n 2
ί /
3, p c / m | 0 . 5 0 j 1.07 J 0 . 5 4 | 0 . 0 1
■ 0 . 2 0
J 0 . 9 0
j 1 . 4 3
| 1 . 5 2
2 . 7 7
3 . 4 2
! 3 . 9 5
' 2 . 8 4
1.70
1 . 0 1
1 . 4 0
2 . 2 0
1 . 1 6
1 . 7 2
1 . 9 6
2 . 5 0
1 . 9 1 ;
1 . 5 3
1 . 5 2 j
1 . 4 7 |
1 . 0 5 j
0 . 5 4 j
0 . 6 2 ί
1.23 |
2 . 1 4 j 2 . 0 8 ί
2 . 3 0 |
1.58 0 . 0 1 3 . 9 5
IN AIR A T I S P R A D E C E M B E R 1963
J S t a t i o n 3
! / 3 ! p c / m
| 0 . 4 6 j 1,15 • 0 . 4 6
J
j 0 , 2 0 j 0 . 8 3
| 1.50 | 1.60
| 2 . 6 0 | 3 . 4 2
3 . 9 0 3 . 0 6 ! 1.63
0 . 9 0 1.50 2 . 4 8 1.18 1.77 2 . 1 2 2 . 4 7
1,75 1,55
1.45 1 1.46 j 0 . 9 3 ] 0 . 5 0 ! 0 . 6 2 ! 1 . 2 4 ! 2 . 0 8 i 2 . 1 6 j 2 . 3 2 !
1.64 0 . 2 0 3 . 9 0
1 S t a t i o n 4
ί /
3
j p c / m
| 0 . 2 9
j 1.09 | 0 . 5 6
J
j 0 . 2 6
J ° °
7 6| 1,27 j 1.82
ί 2°4 8
¡' 3 . 4 0 | 3 . 8 2
2 . 3 8 1.16 0 , 9 7 . , 1.00
2 . 4 9 0 . 9 3
1.36 1.97 2 . 4 3 1.80 i 1,16 1.24 1.45 ] 0 . 8 0 ί 0 . 5 0 ¡ 0 . 5 2 ί 1.08 ί 1.68 ί 1.85 ί 1.87 ί
1.47 0 . 2 6 3 . 8 2
I S t a t i o n 5
ί /
3
¡ p c / m j 0 . 3 2 j 1 . 0 4 | 0 . 6 2 '
| 0 . 2 6
!
° °
8 3 | 1 , 4 5| 1 ο 49
; 2 . 5 0 | 3 . 5 0 | 3 . 9 5 2 . 9 0
1.55 0 . 9 7 1 . 2 4 2 . 1 4 1.30 1 . 9 4 1 , 7 3 2 . 4 3 1 . 6 4 ! 1.33 ! 1 . 3 2 ] 1.50 ] 0 . 9 3 ] 0 . 5 0 ί
0 , 5 7 ! 1.07 '
1,94 ! 2 . 1 0 ! 2 . 1 0 i
1.57 0 . 2 6 3 . 9 5
I A v e r a g e
¡ v a l u e -J p c / m
I ° °
4 2; 1.10 j 0 . 5 6 J 0 . 0 3 j 0 . 2 3 j 0 . 8 3
! l o 4 2
| 1.59 j 2 . 5 5
1
3
·
4 4
| 3 . 9 4 2 . 8 6 1.54 0 . 9 8 1.32 2 . 3 2
1.29 1.71 2 . 0 0 ! 2 . 4 8 I
1.80 ! 1,42 ! 1.38 1 1.46 ¡ 0 . 9 2 j 0 . 5 0 ί
0 . 5 9 | 1.17 i 1.98 ! 2 . 0 7 ! 2 . 2 1 i
1.55 0 . 0 3 3 . 9 4
1 P r e c i p : { t a t i o n { m m
j 1 6 . 4
j 2 4 . é
j 1 2 , 4
0 . 6
0 . 6
5 . 4
MONTHLY AVERAGE CONCENTRATIONS OF RADIONUCLIDES IN AIR ( p c / m )
1963
Month
~1
J a n u a r y
F e b r u a r y
M a r c h
A p r i l
May
June
July
August
S e p t e m b e r
October
N o v e m b e r
D e c e m b e r
G r o s s beta
8 . 7 7 . 6 8 . 1 7 . 3 8 . 2 7 . 1 8 . 9 5 . 2 2 . 5 2 , 2
! 0 . 9 6
¡ 1.5
o 89 Sr
0.47
0 . 7 7
0 . 7 6
0 . 6 4
0 . 5 6
0 . 3 8
0 . 2 1
0 . 1 1
0 . 0 3 1
0 . 0 2 6
0.008
j 0.009
e 90 Sr
0 . 0 2 2
0 . 0 3 7
0 . 0 5 1
0 . 0 6 1
0.077
0.079
0 . 0 9 6
0.070
0 . 0 3 3
0 . 0 3 1
¡ 0.017
¡ 0 . 0 3 3
r, 137
Cs
0 . 0 4 3
0 . 0 6 5
0 . 0 9 1
0 . 1 1
0 . 1 4
0 . 1 4
0 . 1 4
0.090
0 . 0 4 5
0 . 0 4 7
0.022
0 . 0 4 5
95 95
Z r + Nb7
n 141
Ce
. . .
2 . 9 { 0 . 6 5
3 . 2
3 . ò
3 . 4 3 . 6 3 . 0 2 . 2 1.1
0 . 4 5
0.28
0 . 1 1
0 . 1 4
0 . 5 2
0 . 3 3
0 . 2 0
0 . 1 6
0 . 1 0
0 . 0 5
0 . 0 2
u . u . u . u .
r 144
Ce
0 . 7 0
0.90
1.2 1.2 1.5 1.5 1 . 3 1 . 4
0.Ó7
0 . 6 5
0 . 3 2
0 . 5 3
„ 103 Ru
0.70
0 . 5 7
0.39
0 . 3 1
0 , 2 2
0 . 1 3
0 . 0 7
0 . 0 4
u . u . u . u„
■
; _ 106 Ru
f. — _
0 . 5 8 0.70
1.1 1.1 1.2 1.2
0 . 7 3
0 . 5 0
0 . 2 2
0 . 2 2
0 . 1 1
0 . 1 8
GROSS B E T A R A D I O A C T I V I T Y , S T R O N T I U M 9 0 , C E S I U M 1 3 7 IN F A L L O U T
1963
M o n t h
40
G r o s s b e t a K e q u i v a l e n t m c / K m
ZR
m c / K m 2~(^χΓ p c ftS t r o n t i u m 9 0
m c / K m ' p c / 1
C e s i u m 1 3 7
m c / K m p c / 1
P r e c i p i t a t i o n
m m
D a y s w i t h
p r e c i p i t a t i o n J a n u a r y
F e b r u a r y M a r c h A p r i l M a y J u n e J u l y A u g u s t S e p t e m b e r O c t o b e r N o v e m b e r D e c e m b e r
49
25 1Ó0 370 4 2 0 390 310 180 130 26 140 13
41
21
140
340
390
350
300
170
120
25
130
12
690
690
1 4 2 0 1 620
2 470 1 4 5 0 1 4 7 0 1 7 2 0 620
260
380
220
0.36
0 . 2 2
1.9
6 . 5
7.8
8.3
8 . 5
3 . 4
3.5
0 . 7 2
4 . 1 0 . 3 5
5 . 1
6 . 1
16.9
2 8 . 5
4 5 . 9
30.9
4 0 . 2
3 2 . 5
16.8
7 . 2 1 1 . 1 5 . 8
0.48
0 . 3 7
3 . 2
9 . 7
12 15 14
6 . 1
6o0
1.1
6 . 2
0 . 6
6 . 8 1 0 . 2 2 8 . 5 4 2 . 5 7 0 . 6 5 5 . 9
OÙ . L
5 8 . 3
2 8 . 8
1 1 . 0
1 6 . 7
1 0 . 0
7 0 . 6
3 6 . 2
1 1 2 . 4
2 2 8 . 4
170.0
2 6 8 . 4
2 1 1 . 4
104.6
2 0 8 . 4
9 9 . 6
3 7 1 . 0
6 0 . 0
10 5 7 15 14 22 13 12 12 5 l o
6
T o t a l
ί \ 45.65 i J 74.75 i 1 9 4 1 . 0
(χ) = V a l u e s i n t h i s c o l u m n a r e e x t r a p o l a t e d to l a s t d a y of c o l l e c t i o n m o n t h0
