(Table 2) Mercury concentration in hair of Northwest Greenland polar bears (Ursus maritimus)
Hair samples from 117 Northwest Greenland polar bears (Ursus maritimus) were taken during 1892-2008 and analyzed for total mercury (hereafter Hg). The sample represented 28 independent years and the aim of the study was to analyze for temporal Hg trends. Mercury concentrations showed yearly signific...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.808872 2023-05-15T16:03:51+02:00 (Table 2) Mercury concentration in hair of Northwest Greenland polar bears (Ursus maritimus) Dietz, Rune Born, Erik W Rigét, Frank F Aubail, Aurore Sonne, Christian Drimmie, R Basu, Nandini LATITUDE: 77.470000 * LONGITUDE: -69.350000 2011-03-14 text/tab-separated-values, 30 data points https://doi.pangaea.de/10.1594/PANGAEA.808872 https://doi.org/10.1594/PANGAEA.808872 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.808872 https://doi.org/10.1594/PANGAEA.808872 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Dietz, Rune; Born, Erik W; Rigét, Frank F; Aubail, Aurore; Sonne, Christian; Drimmie, R; Basu, Nandini (2011): Temporal trends and future predictions of mercury concentrations in Northwest Greenland polar bear (Ursus maritimus) hair. Environmental Science & Technology, 45(4), 1458-1465, https://doi.org/10.1021/es1028734 Area/locality Biological sample BIOS Greenland International Polar Year (2007-2008) IPY Mercury NW-Greenland Percentage Time coverage Ursus maritimus Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.808872 https://doi.org/10.1021/es1028734 2023-01-20T09:00:51Z Hair samples from 117 Northwest Greenland polar bears (Ursus maritimus) were taken during 1892-2008 and analyzed for total mercury (hereafter Hg). The sample represented 28 independent years and the aim of the study was to analyze for temporal Hg trends. Mercury concentrations showed yearly significant increases of 1.6-1.7% (p < 0.0001) from 1892 to 2008 and the two most recent median concentrations from 2006 and 2008 were 23- to 27-fold higher respectively than baseline level from 1300 A.D. in the same region (Nuullit). This indicates that the present (2006-2008) Northwest Greenland polar bear Hg exposure is 95.6-96.2% anthropogenic in its origin. Assuming a continued anthropogenic increase, this model estimated concentrations in 2050 and 2100 will be 40- and 92-fold the baseline concentration, respectively, which is equivalent to a 97.5 and 98.9% man-made contribution. None of the 2001-2008 concentrations of Hg in Northwest Greenland polar bear hair exceeded the general guideline values of 20-30 µg/g dry weight for terrestrial wildlife, whereas the neurochemical effect level of 5.4 µg Hg/g dry weight proposed for East Greenland polar bears was exceeded in 93.5% of the cases. These results call for detailed effect studies in main target organs such as brain, liver, kidney, and sexual organs in the Northwest Greenland polar bears. Dataset East Greenland Greenland International Polar Year IPY Ursus maritimus PANGAEA - Data Publisher for Earth & Environmental Science Greenland ENVELOPE(-69.350000,-69.350000,77.470000,77.470000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Area/locality Biological sample BIOS Greenland International Polar Year (2007-2008) IPY Mercury NW-Greenland Percentage Time coverage Ursus maritimus |
spellingShingle |
Area/locality Biological sample BIOS Greenland International Polar Year (2007-2008) IPY Mercury NW-Greenland Percentage Time coverage Ursus maritimus Dietz, Rune Born, Erik W Rigét, Frank F Aubail, Aurore Sonne, Christian Drimmie, R Basu, Nandini (Table 2) Mercury concentration in hair of Northwest Greenland polar bears (Ursus maritimus) |
topic_facet |
Area/locality Biological sample BIOS Greenland International Polar Year (2007-2008) IPY Mercury NW-Greenland Percentage Time coverage Ursus maritimus |
description |
Hair samples from 117 Northwest Greenland polar bears (Ursus maritimus) were taken during 1892-2008 and analyzed for total mercury (hereafter Hg). The sample represented 28 independent years and the aim of the study was to analyze for temporal Hg trends. Mercury concentrations showed yearly significant increases of 1.6-1.7% (p < 0.0001) from 1892 to 2008 and the two most recent median concentrations from 2006 and 2008 were 23- to 27-fold higher respectively than baseline level from 1300 A.D. in the same region (Nuullit). This indicates that the present (2006-2008) Northwest Greenland polar bear Hg exposure is 95.6-96.2% anthropogenic in its origin. Assuming a continued anthropogenic increase, this model estimated concentrations in 2050 and 2100 will be 40- and 92-fold the baseline concentration, respectively, which is equivalent to a 97.5 and 98.9% man-made contribution. None of the 2001-2008 concentrations of Hg in Northwest Greenland polar bear hair exceeded the general guideline values of 20-30 µg/g dry weight for terrestrial wildlife, whereas the neurochemical effect level of 5.4 µg Hg/g dry weight proposed for East Greenland polar bears was exceeded in 93.5% of the cases. These results call for detailed effect studies in main target organs such as brain, liver, kidney, and sexual organs in the Northwest Greenland polar bears. |
format |
Dataset |
author |
Dietz, Rune Born, Erik W Rigét, Frank F Aubail, Aurore Sonne, Christian Drimmie, R Basu, Nandini |
author_facet |
Dietz, Rune Born, Erik W Rigét, Frank F Aubail, Aurore Sonne, Christian Drimmie, R Basu, Nandini |
author_sort |
Dietz, Rune |
title |
(Table 2) Mercury concentration in hair of Northwest Greenland polar bears (Ursus maritimus) |
title_short |
(Table 2) Mercury concentration in hair of Northwest Greenland polar bears (Ursus maritimus) |
title_full |
(Table 2) Mercury concentration in hair of Northwest Greenland polar bears (Ursus maritimus) |
title_fullStr |
(Table 2) Mercury concentration in hair of Northwest Greenland polar bears (Ursus maritimus) |
title_full_unstemmed |
(Table 2) Mercury concentration in hair of Northwest Greenland polar bears (Ursus maritimus) |
title_sort |
(table 2) mercury concentration in hair of northwest greenland polar bears (ursus maritimus) |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.808872 https://doi.org/10.1594/PANGAEA.808872 |
op_coverage |
LATITUDE: 77.470000 * LONGITUDE: -69.350000 |
long_lat |
ENVELOPE(-69.350000,-69.350000,77.470000,77.470000) |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
East Greenland Greenland International Polar Year IPY Ursus maritimus |
genre_facet |
East Greenland Greenland International Polar Year IPY Ursus maritimus |
op_source |
Supplement to: Dietz, Rune; Born, Erik W; Rigét, Frank F; Aubail, Aurore; Sonne, Christian; Drimmie, R; Basu, Nandini (2011): Temporal trends and future predictions of mercury concentrations in Northwest Greenland polar bear (Ursus maritimus) hair. Environmental Science & Technology, 45(4), 1458-1465, https://doi.org/10.1021/es1028734 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.808872 https://doi.org/10.1594/PANGAEA.808872 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.808872 https://doi.org/10.1021/es1028734 |
_version_ |
1766399540240318464 |