Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10686717 | Journal of Environmental Radioactivity | 2005 | 16 Pages |
Abstract
Concentrations of 90Sr, 210Po and 210Pb in lichen and reindeer were studied in central (Ãstre Namdal) and southern Norway (VÃ¥gÃ¥) during 2000-2003. The study focussed on potential differences in concentrations of these nuclides in reindeer of different ages. Concentrations of 90Sr in bones of â¼10 year old adult females were about 40% higher than those in calves' antlers (90Sr concentrations in antlers and bones of calves are similar), while the available data from VÃ¥gÃ¥ suggest that 90Sr concentrations in reindeer calves decreased with an effective ecological half-time of 9.03 ± 0.06 years during 1988-2002. Furthermore, 90Sr concentrations were 50-80% higher in bone of reindeer of a similar age from VÃ¥gÃ¥ compared to those from Ãstre Namdal. Concentrations of 210Po and 210Pb in muscle and liver tissues were comparable to those reported for reindeer in other Nordic areas, with no significant difference in 210Po and 210Pb concentrations between adults and calves or between reindeer from the two different study areas.
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Authors
Lavrans Skuterud, Justin P. Gwynn, Eldar Gaare, Eiliv Steinnes, Knut Hove,