Separation of strontium from calcium by the use of sodium hydroxide and its application for the determination of long-term background activity concentrations of 90Sr in 100 km area around Kozloduy Nuclear Power Plant (Bulgaria)

L. Popov; G. Mihailova; I. Hristova; P. Dimitrova; R. Tzibranski; V. Avramov; I. Naidenov; B. Stoenelova

doi:10.1007/s10967-007-7235-7

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 279: Issue 1

Separation of strontium from calcium by the use of sodium hydroxide and its application for the determination of long-term background activity concentrations of ⁹⁰Sr in 100 km area around Kozloduy Nuclear Power Plant (Bulgaria)

Authors:

L. Popov

L. Popov Kozloduy Nuclear Power Plant Safety Department, Environmental Monitoring Division 3321 Kozloduy Bulgaria

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G. Mihailova

G. Mihailova Kozloduy Nuclear Power Plant Safety Department, Environmental Monitoring Division 3321 Kozloduy Bulgaria

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I. Hristova

I. Hristova Kozloduy Nuclear Power Plant Safety Department, Environmental Monitoring Division 3321 Kozloduy Bulgaria

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P. Dimitrova

P. Dimitrova Kozloduy Nuclear Power Plant Safety Department, Environmental Monitoring Division 3321 Kozloduy Bulgaria

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R. Tzibranski

R. Tzibranski Kozloduy Nuclear Power Plant Safety Department, Environmental Monitoring Division 3321 Kozloduy Bulgaria

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V. Avramov

V. Avramov Kozloduy Nuclear Power Plant Safety Department, Environmental Monitoring Division 3321 Kozloduy Bulgaria

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I. Naidenov

I. Naidenov Kozloduy Nuclear Power Plant Safety Department, Environmental Monitoring Division 3321 Kozloduy Bulgaria

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, and

B. Stoenelova

B. Stoenelova Kozloduy Nuclear Power Plant Safety Department, Environmental Monitoring Division 3321 Kozloduy Bulgaria

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Pages:: 49–64

Online Publication Date:: 21 Jul 2008

Publication Date:: 01 Jan 2009

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-007-7235-7

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Abstract

The method for the determination of ⁹⁰Sr which employs sodium hydroxide for the separation of strontium from calcium was further improved introducing the use of elevated temperatures. The results from 11-year study of background activity concentrations of ⁹⁰Sr in different environmental objects in 100 km zone around Kozloduy Nuclear Power Plant (Bulgaria) are presented as an application of the analytical method. The measured mean values are as follows: air precipitation − 0.0015±0.0009 Bq(m^2.d), tap water − 0.0017±0.0012 Bq/L, soil − 1.90±1.26 Bq/kg, grass − 1.54±0.80 Bq/kg, milk − 0.023±0.012 Bq/L and for the Danube river: water − 0.0046±0.0026 Bq/L, bottom sediments − 0.64±0.60 Bq/kg, algae − 1.99±1.56 Bq/kg. The calculated transfer coefficients (soil-grass) are in the range of 0.33–0.84. Between 2 and 5 times reduction in actual background activities of ⁹⁰Sr is observed compared to 1972–1974.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)