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Uptake and Accumulation of Anthropogenic Os in Free-Living Bank Voles (Myodes glareolus)
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2011 (English)In: Water, Air and Soil Pollution, ISSN 0049-6979, E-ISSN 1573-2932, Vol. 218, no 1-4, 603-610 p.Article in journal (Refereed) Published
Abstract [en]

Osmium tetroxide (OsO4) is one of the most toxic air contaminants but its environmental effects are poorly understood. Here, for the first time, we present evidence of osmium uptake in a common herbivore (bank vole, Myodes glareolus) in boreal forests of northern Sweden. Voles (n = 22) and fruticose arboreal pendular lichens, the potential main winter food source of the vole, were collected along a spatial gradient to the west of a steelwork in Tornio, Finland at the Finnish-Swedish border. Os-187/Os-188 isotope ratios increased and osmium concentrations decreased in lichens and voles along the gradient. Osmium concentrations in lichens were 10,000-fold higher than those in voles. Closest to the steelwork, concentrations were highest in kidneys rather than skin/fur that are directly exposed to airborne OsO4. The kidney-to-body weight ratio was higher at the two localities close to the steelwork. Even though based on a small sample size, our results for the first time demonstrate that osmium is taken up, partitioned, and accumulated in mammal tissue, and indicate that high kidney-to-body weight ratios might be induced by anthropogenic osmium.

Place, publisher, year, edition, pages
2011. Vol. 218, no 1-4, 603-610 p.
Keyword [en]
Boreal forest, Herbivore, Kidney-to-body weight ratio, Metal uptake, Spatial gradient
National Category
Ecology Agricultural Science, Forestry and Fisheries
URN: urn:nbn:se:umu:diva-104860DOI: 10.1007/s11270-010-0671-yISI: 000290724400053OAI: diva2:822100
Available from: 2015-06-16 Created: 2015-06-15 Last updated: 2016-02-29Bibliographically approved

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Hörnfeldt, BirgerNyholm, Erik
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Department of Ecology and Environmental Sciences
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