Environmental studies on radioecological sensitivity and variability with special emphasis on the fallout nuclides 90Sr and 137 Cs, 1: Main text [Air, atmospheric precipitations, body, bread, cesium 137, cereals, compiled data, contamination, Denmark, diet, dose commitments, drinking water, environment, environmental exposure pathway, experimental data, Faroe Islands, fishes, food chains, fresh water, fucus, gramineae, global fallout, Greenland, lichens, man, meat, milk, radioactivity, radioecology, radioecological concentration, radionuclide kinetics, radionuclide migration, sampling, seawater, sediments, seeds, sentitivity, soils, statistical models, strontium 90, teeth, translocation, vegetables]
1979
Aarkrog, A.
Radioecological sensitivity and variability are quantities that are used to characterize the radioecological properties of environmental samples. The radioecological sensitivity is the infinite time-integrated radionuclide concentration in the environmental sample considered arising from a deposition of 1 mCi km('-2) of the radionuclide in question. This quantity makes it possible to compare various environments as to their vulnerability to a given radioactive contamination. The variability of the concentrations of a radionuclide in an environmental sample, with respect to a given parameter, is defined as the partial coefficient of variation due to this parameter. The variability with time is a useful way to assess the route of contamination of the sample and the local variability is a measure of environmental inhomogenity with respect to radioactive contamination. Radioecological sensitivity and variability were applied to the ('90)Sr and ('137)Cs data obtained from the environmental studies on the human foodchain carried out during the last two decades in Denmark, the Faroe Islands, and Greenland. The per caput effective dose-equivalent commitments from radioactive debris from nuclear weapons testing was estimated to be 1.6 mSv in Denmark, 4.2 mSv in the Faroe Islands, and 1.6 mSv in Greenland.
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