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Monitoring of Fresh Waters Used for Dispersal of Radioactive Wastes; Controle des Eaux Fluviales Utilisees pour la Dispersion des Dechets Radioactifs; 0418 0417 041c 0414 ; Monitoraje de las Aguas Dulces Utilizadas para la Dispersion de Desechos Radiactivos

Abstract

The Ottawa River is a very large river. The water has a low solids content with little plankton. In many ways the river resembles a lake. Effluent is diluted, into a great volume of low-activity cooling water and enters the river at a concentration of radionuclides less than the MPCW for occupational workers. The concentration of total B {gamma} radionuclides above the plant is 2 x 10{sup -8} {mu}c/ml, and 1.6 km below the plant it is 3 x 10{sup -8} {mu}c/ml. Sampling of the river bottom shows that its radioactivity has been decreasing for several years in spite of continuous addition of activity adsorbed on colloidal silica deposited from the water. Large fish are the only river organisms used by man. Traces of Sr{sup 90} have occasionally been found in the bones, but none in the flesh. Although P{sup 32} forms only 0.04% of the total radioactivity found in the effluent, it makes up 75-95% of the total radionuclides found in most samples. A maximum concentration of 10{sup -3} {mu}c/g wet weight has been found in the whole bodies of small perch. (author) [French] Ottawa est un tres grand fleuve. Ses eaux ne contiennent que peu' de substances solides,  More>>
Authors:
Ophel, I. L. [1] 
  1. Environmental Research and Radiation Dosimetry Branch, Division of Biology and Health Physics, Atomic Energy of Canada Limited, Chalk River, ON (Canada)
Publication Date:
Jul 01, 1960
Product Type:
Conference
Resource Relation:
Conference: Scientific Conference on the Disposal of Radioactive Wastes, Monaco (Monaco), 16-21 Nov 1959; Other Information: 3 refs., 2 figs.; Related Information: In: Disposal of Radioactive Wastes. Vol. II. Proceedings of the Scientific Conference on the Disposal of Radioactive Wastes| 586 p.
Subject:
54 ENVIRONMENTAL SCIENCES; ABUNDANCE; CONCENTRATION RATIO; MONITORING; OTTAWA RIVER; PHOSPHORUS 32; RADIATION MONITORING; RADIOACTIVE WASTES; RADIOACTIVITY; RADIOECOLOGICAL CONCENTRATION; RADIONUCLIDE MIGRATION; SILICA; SKELETON; STRONTIUM 90
OSTI ID:
22192424
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); United Nations Educational, Scientific and Cultural Organization, Paris (France); Food and Agriculture Organization, Rome (Italy)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA13M3548016913
Submitting Site:
INIS
Size:
page(s) 323-328
Announcement Date:
Feb 20, 2014

Citation Formats

Ophel, I. L. Monitoring of Fresh Waters Used for Dispersal of Radioactive Wastes; Controle des Eaux Fluviales Utilisees pour la Dispersion des Dechets Radioactifs; 0418 0417 041c 0414 ; Monitoraje de las Aguas Dulces Utilizadas para la Dispersion de Desechos Radiactivos. IAEA: N. p., 1960. Web.
Ophel, I. L. Monitoring of Fresh Waters Used for Dispersal of Radioactive Wastes; Controle des Eaux Fluviales Utilisees pour la Dispersion des Dechets Radioactifs; 0418 0417 041c 0414 ; Monitoraje de las Aguas Dulces Utilizadas para la Dispersion de Desechos Radiactivos. IAEA.
Ophel, I. L. 1960. "Monitoring of Fresh Waters Used for Dispersal of Radioactive Wastes; Controle des Eaux Fluviales Utilisees pour la Dispersion des Dechets Radioactifs; 0418 0417 041c 0414 ; Monitoraje de las Aguas Dulces Utilizadas para la Dispersion de Desechos Radiactivos." IAEA.
@misc{etde_22192424,
title = {Monitoring of Fresh Waters Used for Dispersal of Radioactive Wastes; Controle des Eaux Fluviales Utilisees pour la Dispersion des Dechets Radioactifs; 0418 0417 041c 0414 ; Monitoraje de las Aguas Dulces Utilizadas para la Dispersion de Desechos Radiactivos}
author = {Ophel, I. L.}
abstractNote = {The Ottawa River is a very large river. The water has a low solids content with little plankton. In many ways the river resembles a lake. Effluent is diluted, into a great volume of low-activity cooling water and enters the river at a concentration of radionuclides less than the MPCW for occupational workers. The concentration of total B {gamma} radionuclides above the plant is 2 x 10{sup -8} {mu}c/ml, and 1.6 km below the plant it is 3 x 10{sup -8} {mu}c/ml. Sampling of the river bottom shows that its radioactivity has been decreasing for several years in spite of continuous addition of activity adsorbed on colloidal silica deposited from the water. Large fish are the only river organisms used by man. Traces of Sr{sup 90} have occasionally been found in the bones, but none in the flesh. Although P{sup 32} forms only 0.04% of the total radioactivity found in the effluent, it makes up 75-95% of the total radionuclides found in most samples. A maximum concentration of 10{sup -3} {mu}c/g wet weight has been found in the whole bodies of small perch. (author) [French] Ottawa est un tres grand fleuve. Ses eaux ne contiennent que peu' de substances solides, notamment peu de plancton. A bien des egards, ce fleuve ressemble a un lac. Les effluents sont dilues dans. une grande quantite d'eau de refroidissement, de faible activite; lorsqu'ils penetrent dans le fleuve, leur concentration en radionuclides est inferieure a la concentration maximum admissible dans l'eau pour les travailleurs exposes professionnellement. La concentration totale en emetteurs beta et gamma est 2 x 10{sup -8} {mu}c/ml en amont de l'usine et 3 x 10{sup -8} {mu}c/ml a 1,6 km en aval. Les echantillons preleves au fond du fleuve montrent que sa radioactivite diminue depuis plusieurs annees, en depit des apports continuels de l'activite adsorbee par les silices colloiedaux en suspension qui se deposent. Les seuls organismes presents dans le fleuve et utilises par l'homme sont les gros poissons. On a parfois trouve des traces de strontium-90 dans leurs aretes, mais il n'en a pas ete decele dans la chair. Pour les petites perches, on a constate une concentration maximum de 10{sup -3} {mu}c de {sup 32}P par gramme de poids brut, pour l'organisme entier. Bien que le phosphore-32 ne constitue que 0,04 pour cent de la radioactivite totale relevee dans les effluents, il represente de 75 a 95 pour cent de la quantite totale de radionuclides trouves dans la plupart des echantillons. (author) [Spanish] El Ottawa es un rio muy ancho. Sus aguas contienen, pocas materias solidas y escaso plancton. En muchos aspectos puede compararse a un lago. El efluente se diluye en una gran cantidad de agua refrigerante, de baja actividad, y su concentracion de radionuclidos al penetrar en el rio es inferior a la concentracion maxima admisible en el agua para trabajadores expuestos por razones profesionales. La concentracion total de radionuclidos beta gamma es, aguas arriba de la instalacion, de 2 x 10{sup -8} {mu}c/ml y de 3 x 10{sup -8} {mu}c/ml a 1,600 metros aguas abajo de la instalacion. Las muestras tomadas en el lecho del rio indican que su radiactividad esta decreciendo desde hace algunos anos, no obstante la continua adicion de sustancias radiactivas adsorbidas a la silice coloidal que depositan las aguas. Los unicos organismos del rio que utiliza el hombre son peces de regular tamano. En algunas ocasiones se han encontrado vestigios de estroncio-90 en sus espinas, pero nunca en la carne. En la perca pequena se ha hallado una concentracion maxima, en todo el organismo, de 10{sup -3} {mu}c de {sup 32}P/g en peso humedo. Aunque el fosforo-32 produce solamente el 0,04 por ciento de la radiactividad total hallada en el efluente, representa del 75 al 95 por ciento del total de radionuclidos encontrados en la mayoria de las muestras. (author) [Russian] Reka Ottava javljaetsja ochen' bol'shoj. V ee vode soderzhitsja malo tverdyh veshhestv i imeetsja nebol'shoj plankton. Vo mnogih otnoshenijah jeta reka predstavljaet ozero. Jeffljujent razbavljaetsja bol'shimi ob{sup e}mami nizkoaktivnoj vody, ispol'zovannoj dlja ohlazhdenija, i postupaet v reku pri koncentracii radionuklidov, ne prevyshajushhih predel'no dopustimoj koncentracii dlja rabochih. Obshhaja koncentracija beta- i gamma-radionuklidov vverh po techeniju ot zavoda sostavljaet 2 x 10{sup -8} millikjuri/millilitr i 1,6 kilometra vniz po techeniju ot zavoda ravna 3 x 10{sup -8} millikjuri/millilitr. Vzjatie prob so dna reki pokazyvaet, chto radioaktivnost' ponizhaetsja v techenie celogo rjada let nesmotrja na postojannoe dobavlenie aktivnosti, osazhdajushhejsja na kolloidal'nom kremnii, vydeljajushhemsja iz vody. Iz rechnyh organizmov chelovekom upotrebljaetsja v pishhu tol'ko krupnaja ryba. Sledy stroncija-90 byli sluchajno obnaruzheny v kostjah, no ne v mjase. Maksimal'noe soderzhanie 10{sup -3} millikjuri R{sup 32}/g obshhego vesa bylo obnaruzheno v nebol'shih okunjah. Hotja fosfor-32 sostavljaet tol'ko 0,04% obshhej radioaktivnosti jeffljuenta, on predstavljaet 75-95% vseh radionuklidov obnaruzhennyh v bol'shinstve vzjatyh na issledovanie ryb. (author)}
place = {IAEA}
year = {1960}
month = {Jul}
}