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Modelling of long-term behaviour of caesium and strontium radionuclides in the Arctic environment and human exposure

https://arctichealth.org/en/permalink/ahliterature4769
Source
Journal of Environmental Radioactivity. 2004;74(1-3):159-169
Publication Type
Article
Date
2004
Author
Golikov, V
Logacheva, I
Bruk, G
Shutov, V
Balonov, M
Strand, P
Borghuis, S
Howard, B
Wright, S
Author Affiliation
Institute of Radiation Hygiene, Mira str. 8, 197101 St. Petersburg, Russia. bazil@sg5816.spb.edu
Source
Journal of Environmental Radioactivity. 2004;74(1-3):159-169
Date
2004
Language
English
Geographic Location
Norway
Russia
Publication Type
Article
Keywords
Animals
Arctic Regions
Cesium radioisotopes - pharmacokinetics
Diet
Food chain
Food Contamination
Humans
Lichens
Models, Theoretical
Radioactive pollutants - pharmacokinetics
Reindeer
Research Support, Non-U.S. Gov't
Risk assessment
Strontium - pharmacokinetics
Abstract
In this paper a compartment model of the highly vulnerable Arctic terrestrial food chain "lichen-reindeer-man" is outlined. Based upon an analysis of measured (137)Cs and (90)Sr contents in lichen and reindeer meat from 1961 up to 2001, site specific model parameters for two regions in north-western Arctic Russia and for Kautokeino municipality in Arctic Norway have been determined. The dynamics of radionuclide activity concentrations in the "lichen-reindeer-man" food chain for all areas was satisfactorily described by a double exponential function with short-term and long-term effective ecological half-lives between 1-2 and 10-12 years, respectively, for both (137)Cs and (90)Sr. Using parameter values derived from the model, life-time internal effective doses due to consumption of reindeer meat by reindeer-breeders after an assumed single pulse deposit of 1 kBq m(-2) of (137)Cs were estimated to be 11.4 mSv (Kola Peninsula), 5 mSv (Nenets Autonomous Area), and 2 mSv (Kautokeino, Norway). Differences in vulnerability to radiocaesium deposition were due to differences in transfer between lichen and reindeer and in diet between the three regions.
PubMed ID
15063545 View in PubMed
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