Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue
We examined the use of mercury (Hg) and nitrogen and carbon stable isotopes in teeth of polar bear (Ursus maritimus) from Svalbard as biotracers of temporal changes in Hg pollution exposure between 1964 and 2003. Teeth were regarded as a good matrix of the Hg exposure, and in total 87 teeth of polar...
Published in: | J. Environ. Monit. |
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Language: | English |
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2012
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Online Access: | https://pure.au.dk/portal/da/publications/temporal-trend-of-mercury-in-polar-bears-ursus-maritimus-from-svalbard-using-teeth-as-a-biomonitoring-tissue(17e50652-4f45-43bb-8813-f77a319f5199).html https://doi.org/10.1039/c1em10681c |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/17e50652-4f45-43bb-8813-f77a319f5199 2023-07-16T04:01:04+02:00 Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue Aubail, Aurore Dietz, Rune Rigét, Frank Sonne, Christian Wiig, Oystein Caurant, Florence 2012 https://pure.au.dk/portal/da/publications/temporal-trend-of-mercury-in-polar-bears-ursus-maritimus-from-svalbard-using-teeth-as-a-biomonitoring-tissue(17e50652-4f45-43bb-8813-f77a319f5199).html https://doi.org/10.1039/c1em10681c eng eng info:eu-repo/semantics/restrictedAccess Aubail , A , Dietz , R , Rigét , F , Sonne , C , Wiig , O & Caurant , F 2012 , ' Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue ' , Journal of Environmental Monitoring , vol. 14 , pp. 56-63 . https://doi.org/10.1039/c1em10681c article 2012 ftuniaarhuspubl https://doi.org/10.1039/c1em10681c 2023-06-28T22:57:32Z We examined the use of mercury (Hg) and nitrogen and carbon stable isotopes in teeth of polar bear (Ursus maritimus) from Svalbard as biotracers of temporal changes in Hg pollution exposure between 1964 and 2003. Teeth were regarded as a good matrix of the Hg exposure, and in total 87 teeth of polar bears were analysed. Dental Hg levels ranged from 0.6 to 72.3 ng g(-1) dry weight and increased with age during the first 10 years of life. A decreasing time trend in Hg concentrations was observed over the recent four decades while no temporal changes were found in the stable isotope ratios of nitrogen (δ(15)N) and carbon (δ(13)C). This suggests that the decrease of Hg concentrations over time was more likely due to a lower environmental Hg exposure in this region rather than a shift in the feeding habits of Svalbard polar bears. Article in Journal/Newspaper Svalbard Ursus maritimus Aarhus University: Research Svalbard J. Environ. Monit. 14 1 56 63 |
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Open Polar |
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Aarhus University: Research |
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ftuniaarhuspubl |
language |
English |
description |
We examined the use of mercury (Hg) and nitrogen and carbon stable isotopes in teeth of polar bear (Ursus maritimus) from Svalbard as biotracers of temporal changes in Hg pollution exposure between 1964 and 2003. Teeth were regarded as a good matrix of the Hg exposure, and in total 87 teeth of polar bears were analysed. Dental Hg levels ranged from 0.6 to 72.3 ng g(-1) dry weight and increased with age during the first 10 years of life. A decreasing time trend in Hg concentrations was observed over the recent four decades while no temporal changes were found in the stable isotope ratios of nitrogen (δ(15)N) and carbon (δ(13)C). This suggests that the decrease of Hg concentrations over time was more likely due to a lower environmental Hg exposure in this region rather than a shift in the feeding habits of Svalbard polar bears. |
format |
Article in Journal/Newspaper |
author |
Aubail, Aurore Dietz, Rune Rigét, Frank Sonne, Christian Wiig, Oystein Caurant, Florence |
spellingShingle |
Aubail, Aurore Dietz, Rune Rigét, Frank Sonne, Christian Wiig, Oystein Caurant, Florence Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue |
author_facet |
Aubail, Aurore Dietz, Rune Rigét, Frank Sonne, Christian Wiig, Oystein Caurant, Florence |
author_sort |
Aubail, Aurore |
title |
Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue |
title_short |
Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue |
title_full |
Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue |
title_fullStr |
Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue |
title_full_unstemmed |
Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue |
title_sort |
temporal trend of mercury in polar bears (ursus maritimus) from svalbard using teeth as a biomonitoring tissue |
publishDate |
2012 |
url |
https://pure.au.dk/portal/da/publications/temporal-trend-of-mercury-in-polar-bears-ursus-maritimus-from-svalbard-using-teeth-as-a-biomonitoring-tissue(17e50652-4f45-43bb-8813-f77a319f5199).html https://doi.org/10.1039/c1em10681c |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
Svalbard Ursus maritimus |
genre_facet |
Svalbard Ursus maritimus |
op_source |
Aubail , A , Dietz , R , Rigét , F , Sonne , C , Wiig , O & Caurant , F 2012 , ' Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue ' , Journal of Environmental Monitoring , vol. 14 , pp. 56-63 . https://doi.org/10.1039/c1em10681c |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1039/c1em10681c |
container_title |
J. Environ. Monit. |
container_volume |
14 |
container_issue |
1 |
container_start_page |
56 |
op_container_end_page |
63 |
_version_ |
1771550532464279552 |