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Cadmium in moose kidney and liver: age and gender dependency, and standardisation for environmental monitoring
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Analytical Chemistry.
2009 (English)In: Environmental Monitoring & Assessment, ISSN 0167-6369, E-ISSN 1573-2959, Vol. 157, no 1-4, 73-88 p.Article in journal (Refereed) Published
Abstract [en]

In the northern hemisphere moose has been found to be suitable as a monitoring animal for the presence of cadmium in the environment. The metal accumulates mainly in the kidney and the liver, with the rate of accumulation dependent on age and possibly also on gender. Collection of tissue material often results in sample selections with disparate age and gender composition, which makes comparison between different regions and different studies difficult. A previous large scale investigation of metals in kidney and liver from moose in Sweden provided Cd data (n = 3,817 and 3,802, respectively) to further explore the relation between Cd accumulation and age/gender. Based on local averages, the individual deviations were analysed with respect to the factors age and gender resulting in an 'ageing function' for each gender and organ. In addition, estimates of the pure individual variations were obtained; the standard deviations correspond to a factor 1.7-1.9 for the Cd concentration, which indicates that 25-30 samples are needed to give a representative mean value (with RSD ≈ 10%). In order to be able to compare results from different studies, all individual results can be transformed to represent a 'standard moose' with respect to age and gender. A comparison along these lines was undertaken between Cd levels in Alaska and Sweden. Finally, a relationship between the Cd levels in kidney and liver was derived, providing at least rough estimates for kidney from liver values (or vice versa).

Place, publisher, year, edition, pages
2009. Vol. 157, no 1-4, 73-88 p.
Keyword [en]
Cadmium, Moose, Monitoring, Age dependency, Cd accumulation
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-113910DOI: 10.1007/s10661-008-0516-yISI: 000269883900008PubMedID: 18758976OAI: oai:DiVA.org:uu-113910DiVA: diva2:292111
Available from: 2010-02-04 Created: 2010-02-04 Last updated: 2011-03-04Bibliographically approved

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