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First Results of a Systematic Study of Internal Contamination Due to Fall-Out; Premiers Resultats d'une Etude Systematique des Contaminations Internes Consecutives aux Retombees Radioactives; 041f 0415 0420 0414 ; Resultados Iniciales de un Estudio Sistematico de las Contaminaciones Internas Debidas a la Precipitacion Radiactiva

Abstract

Since September 1961 the Service Central de Protection contre les Rayonnements Ionisants (Central Radiological Protection Service) has carried out more than 500 examinations with whole-body counter. Numerous individuals were examined at intervals of three or six months, and, in many cases, the urine was radio analysed during these examinations. A systematic examination of the urine sample by gamma-spectrometry generally preceded the radiochemical study. A comparative study of the results of the various examinations yielded a certain amount of data on internal contamination from radioactive fall-out. (1) Caesium-137 was the only-artificial radioisotope which was consistently detected by the whole-body, counter. The changes-occurring in the mean body burden could be observed throughout the entire period of the examinations. The normal variation in body burden depending on sex could also be observed. (2) For the low-level activities usually found, it was possible to study the ratio of the urinary excretion of caesium-: 137 to the total body burden of this isotope. The results seemed to confirm the ratios found by other authors for higher levels of contamination. (3) The presence of fission products, with moderate half-lives, particularly zirconium-95 and niobium-95 and, to a lesser extent, ruthenium-103, could be observed as a transitory phenomenon,  More>>
Authors:
Pellerin, P.; Moroni, J. P.; Remy, M. L. [1] 
  1. Travail du Service Central de Protection Contre les Rayonnements Ionisants, Ministere de la Sante Publique, Paris (France)
Publication Date:
Nov 15, 1964
Product Type:
Conference
Report Number:
IAEA-SM-52/80
Resource Relation:
Conference: Symposium on the Assessment of Radioactive Body Burdens, Heidelberg (Germany), 11-16 May 1964; Other Information: 15 refs., 2 tabs., 6 figs.; Related Information: In: Assessment of Radioactivity in Man. Vol. II. Proceedings of the Symposium on the Assessment of Radioactive Body Burdens| 671 p.
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS; BODY BURDEN; CESIUM 137; DOSE COMMITMENTS; EXCRETION; FALLOUT DEPOSITS; FISSION PRODUCTS; GAMMA SPECTROSCOPY; GLOBAL FALLOUT; NIOBIUM 95; RADIATION DOSES; RADIATION PROTECTION; RADIONUCLIDE KINETICS; RUTHENIUM 103; STRONTIUM 90; URINE; WHOLE-BODY COUNTERS; ZIRCONIUM 95
OSTI ID:
22200045
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); International Labour Organisation, Geneva (Switzerland); World Health Organization, Geneva (Switzerland)
Country of Origin:
IAEA
Language:
French
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA13M3251020868
Submitting Site:
INIS
Size:
page(s) 121-133
Announcement Date:
Feb 27, 2014

Citation Formats

Pellerin, P., Moroni, J. P., and Remy, M. L. First Results of a Systematic Study of Internal Contamination Due to Fall-Out; Premiers Resultats d'une Etude Systematique des Contaminations Internes Consecutives aux Retombees Radioactives; 041f 0415 0420 0414 ; Resultados Iniciales de un Estudio Sistematico de las Contaminaciones Internas Debidas a la Precipitacion Radiactiva. IAEA: N. p., 1964. Web.
Pellerin, P., Moroni, J. P., & Remy, M. L. First Results of a Systematic Study of Internal Contamination Due to Fall-Out; Premiers Resultats d'une Etude Systematique des Contaminations Internes Consecutives aux Retombees Radioactives; 041f 0415 0420 0414 ; Resultados Iniciales de un Estudio Sistematico de las Contaminaciones Internas Debidas a la Precipitacion Radiactiva. IAEA.
Pellerin, P., Moroni, J. P., and Remy, M. L. 1964. "First Results of a Systematic Study of Internal Contamination Due to Fall-Out; Premiers Resultats d'une Etude Systematique des Contaminations Internes Consecutives aux Retombees Radioactives; 041f 0415 0420 0414 ; Resultados Iniciales de un Estudio Sistematico de las Contaminaciones Internas Debidas a la Precipitacion Radiactiva." IAEA.
@misc{etde_22200045,
title = {First Results of a Systematic Study of Internal Contamination Due to Fall-Out; Premiers Resultats d'une Etude Systematique des Contaminations Internes Consecutives aux Retombees Radioactives; 041f 0415 0420 0414 ; Resultados Iniciales de un Estudio Sistematico de las Contaminaciones Internas Debidas a la Precipitacion Radiactiva}
author = {Pellerin, P., Moroni, J. P., and Remy, M. L.}
abstractNote = {Since September 1961 the Service Central de Protection contre les Rayonnements Ionisants (Central Radiological Protection Service) has carried out more than 500 examinations with whole-body counter. Numerous individuals were examined at intervals of three or six months, and, in many cases, the urine was radio analysed during these examinations. A systematic examination of the urine sample by gamma-spectrometry generally preceded the radiochemical study. A comparative study of the results of the various examinations yielded a certain amount of data on internal contamination from radioactive fall-out. (1) Caesium-137 was the only-artificial radioisotope which was consistently detected by the whole-body, counter. The changes-occurring in the mean body burden could be observed throughout the entire period of the examinations. The normal variation in body burden depending on sex could also be observed. (2) For the low-level activities usually found, it was possible to study the ratio of the urinary excretion of caesium-: 137 to the total body burden of this isotope. The results seemed to confirm the ratios found by other authors for higher levels of contamination. (3) The presence of fission products, with moderate half-lives, particularly zirconium-95 and niobium-95 and, to a lesser extent, ruthenium-103, could be observed as a transitory phenomenon, at certain times. (4) A knowledge of the total body burden of strontium-90 would be extremely. useful but, in the case of low- level activities, this isotope cannot be measured directly with the whole-body counter. The authors therefore tried to estimate the order of magnitude of this burden in two different ways. A first approximation was arrived at by studying caesium-137, since the percentages of strontium-90 and caesium-137 in radioactive fall-out evolve along very similar lines. Then, the urinary excretion of strontium-90 in a number of individuals was measured in an attempt to deduce the body burden or, at least, to infer a maximum value for the isotope. (author) [French] Depuis septembre 1.961, plus de-500 examens a l'anthropoeamma- metre.ont ete pratiques par le Service central de protection contre les rayonnements ionisants. De nombreuses personnes sont soumises a des examens trimestriels ou semestriels et des radioanalyses urinaires sont frequemment associees a ces examens; une exploration systematique de l'echantillon d'urine par spectrometrie {gamma} precede en general l'etude radiochimique. L'etude comparative des resultats de ces divers examens permet de degager certains faits relatifs a la contamination interne due aux retombees radioactives: 1. Le cesium 137 est le seul radioisotope artificiel constamment retrouve par examen a l'anthropogamma- metre. L'evolution de la charge totale moyenne peut etre suivie durant toute la periode de temps couverte par l'ensemble des examens. On peut constater accessoirement la variation, par ailleurs classique, de la charge radioactive selon le sexe. 2. Les auteurs ont pu etudier, pour les faibles activites habituellement rencontrees, le rapport entre l'excretion urinaire du cesium-137 et la charge corporelle totale de ce radioisotope. Les resultats paraissent'confirmer les relations etablies par d'autres auteurs pour des contaminations plus importantes. 3. En ce qui concerne les produits de fission a vies moyennes, les zirconium 95 + niobium 95 en particulier (et plus accessoirement le ruthenium 103), leur presence a pu etre constatee de facon transitoire a certaines periodes. 4. La connaissance de la charge corporelle totale de strontium 90 serait une donnee capitale, mais la mesure directe de ce radioisotope a Tanthropogammametre ne peut etre realisee pour de faibles activites. Les auteurs ont donc tente d'evaluer l'ordre de grandeur de cette charge par deux voies differentes: tout d'abord, l'etude du cesium 137, dont le pourcentage dans les retombees radioactives evolue de facon sensiblement parallele a celui du strontium 90, permet de realiser une premiere approximation. Ils ont de plus mesure l'excretion urinaire du strontium 90 chez un certain nombre de sujets, pour tenter d'en deduire la charge totale ou, tout au moins, une limite superieure pour ce radioisotope. (author) [Spanish] En septiembre de 1961, el Servicio Central de Proteccion contra las Radiaciones Ionizantes del Ministerio de Salud Publica de Francia empezo a efectuar examenes antropogamma- metricos, hasta la fecha se comprobaron mas de 500 examenes de esa indole. Se somete a examenes trimestrales o semestrales a un gran numero de personas y, frecuentemente, junto con dichos examenes se efectuan ra- dioanalisis de orina; en general, antes del estudio radioquimico, se procede a una exploracion sistematica de la muestra de orina por espectrometria gamma. El estudio comparado de los resultados de estos diversos examenes ha permitido deducir ciertos hechos relativos a la contaminacion interna debida a la precipitacion radiactiva: 1. El cesio-137 es el unico radioisotopo artificial cuya presencia queda constantemente demostrada por el examen antropogammametrico. La variacion del valor medio de la carga corporal total puede ser observada durante todo el perfodo que-abarca el conjunto de los examenes. Ademas, es posible comprobar la variacion, por otra parte bien conocida, de la carga radiactiva en funcion del sexo. 2. los autores han podido estudiar la relacion existente entre la excrecion urinaria de cesio-137 y la carga total de este isotopo en el organismo, en correspondencia con las debiles actividades que se registran habitualmente. Los resultados parecen confirmar las relaciones establecidas por otros autores para grados de contaminacion mas elevados. 3. En lo que se refiere a los productos de fision de perfodo medio, eh particular el circonio-95 + niobio-95 (y en menor grado el rutenio-103), se pudo comprobar que aparecen transitoriamente en determinados periodos. 4. El conocimiento de la carga total de estroncio-90 en el organismo humano tendria capital importancia, pero la medicion directa de este isotopo mediante el antropogammametro no puede realizarse cuando se trata de bajas actividades. Por lo tanto, los autores procuraron evaluar el orden de magnitud de dicha carga por dos metodos diferentes: primeramente, el estudio del cesio-137, cuya concentracion en las precipitaciones radiactivas sigue una evolucion sensiblemente paralela al del estroncio-90, permite hallar una primera aproximacion. Ademas, los autores midieron la excrecion urinaria de estroncio-90 en cierto numero de sujetos, con el proposito de deducir asi la carga total o, por lo menos, encontrar un limite superior para la concentracion de dicho isotopo. (author) [Russian] S sentjabrja 1961 goda Central'naja sluzhba zashhity ot ionizirujushhih izluchenij provela svyshe 500 obsledovanij s pomosh'ju schetchika dlja izmerenija radioaktivnosti vsego organizma cheloveka. Mnogie lica obsledovalis' v techenii treh ili shesti mesjacev . Pri jetih obsledovanijah chasto ispol'zovalsja radioanaliz mochi, v celom radiohimicheskomu issledovaniju predshestvovalo sistematicheskoe izuchenie obrazcov mochi s pomosh'ju gamma-spektrometrii.Sravnitel'noe izuchenie rezul'tatov jetih razlichnyh issledovanij pozvoljaet vyjavit' nekotorye fakty, otnosjashhiesja k vnutrennemu zarazheniju v rezul'tate radioaktivnyh vypadenij: 1. Cezij-137 javljaetsja edinstvennym iskustvennym radioizotopom, kotoryj postojanno obnaruzhivalsja pri obsledovanijah s pomoshh'ju schetchika dlja izmerenija aktivnosti vsego organizma. Jevoljucija obshhego srednego soderzhanija izotopa mozhet byt' proslezhena v techenie vsego perioda vremeni, otvedennogo na vse issledovanija. Dopolnitel'no mozhno otmetit' izmenenija, i k tomu zhe obychnye, radioaktivnogo zarazhenija v zavisimosti ot pola. 2. Chto kasaetsja obychno vstrechajushhihsja slabyh aktivnostej, to nam udalos' izuchit' svjaz' mezhdu vydeleniem s mochoj cezija-137 i obshhim soderzhaniem jetogo izotopa v organizme. Rezul'taty, kazhetsja, podtverzhdajut ustanovlennye drugimi avtorami sootnoshenija dlja bolee ser'eznyh zarazhenij. 3. Chto kasaetsja produktov delenija so srednim periodom poluraspada, v chastnosti cirkonija-95 i niobija-95 (i inogda rutenija-103), to ih prisutstvie mozhet' obnaruzheno v opredelennye periody. 4. Znanie obshhego soderzhanija stroncija-90 v organizme cheloveka bylo by ochen' poleznym, odnako pri nebol'shih aktivnostjah prjamo opredelit' jetot izotop s pomoshh'ju schetchika dlja izmerenija aktivnosti vsego organizma nevozmozhno. Pojetomu avtory stremilis' opredelit' velichinu zarazhenija dvumja razlichnymi putjami. Predvaritel'naja ocenka byla sdelana putem izuchenija cezija-137, poskol'ku prrcentnoe soderzhanie stroncija-90 i cezija-137 v radioaktivnyh vypadenijah nahoditsja primerno na odnom i tom zhe urovne. Zatem byli zamereny vydelenija stroncija-90 s mochoj u nekotoryh obsledovannyh, s cel'ju vyvesti otsjuda obshhee sozherzhanie ili po krajnej mere ustanovit' vysshej predel dlja jetogo izotopa. (author)}
place = {IAEA}
year = {1964}
month = {Nov}
}