A screening of persistent organohalogenated contaminants in hair of East Greenland polar bears
Abstract: In this pilot study, we report on levels of persistent organohalogenated contaminants (OHCs) in hair of polar bears (Ursus maritimus) from East Greenland sampled between 1999 and 2001. To our knowledge, this is the first study on the validation of polar bear hair as a non-invasive matrix r...
Published in: | Science of The Total Environment |
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Language: | English |
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2010
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ftunivantwerpen:c:irua:84286 2024-10-06T13:48:17+00:00 A screening of persistent organohalogenated contaminants in hair of East Greenland polar bears Jaspers, Veerle Dietz, Rune Sonne, Christian Letcher, Robert J. Eens, Marcel Neels, Hugo Born, Erik W. Covaci, Adrian 2010 pdf https://hdl.handle.net/10067/842860151162165141 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1016/J.SCITOTENV.2010.07.059 info:eu-repo/semantics/altIdentifier/isi/000283611800045 info:eu-repo/semantics/closedAccess 0048-9697 The science of the total environment Biology Pharmacology. Therapy Veterinary medicine info:eu-repo/semantics/article 2010 ftunivantwerpen https://doi.org/10.1016/J.SCITOTENV.2010.07.059 2024-09-10T04:06:32Z Abstract: In this pilot study, we report on levels of persistent organohalogenated contaminants (OHCs) in hair of polar bears (Ursus maritimus) from East Greenland sampled between 1999 and 2001. To our knowledge, this is the first study on the validation of polar bear hair as a non-invasive matrix representative of concentrations and profiles in internal organs and blood plasma. Because of low sample weights (13140 mg), only major bioaccumulative OHCs were detected above the limit of quantification: five polychlorinated biphenyl (PCB) congeners (CB 99, 138, 153, 170 and 180), one polybrominated diphenyl ether (PBDE) congener (BDE 47), oxychlordane, trans-nonachlor and β-hexachlorocyclohexane. The PCB profile in hair was similar to that of internal tissues (i.e. adipose, liver, brain and blood), with CB 153 and 180 as the major congeners in all matrices. A gender difference was found for concentrations in hair relative to concentrations in internal tissues. Females (n = 6) were found to display negative correlations, while males (n = 5) showed positive correlations, although p-values were not found significant. These negative correlations in females may reflect seasonal OHC mobilisation from periphery adipose tissue due to, for example, lactation and fasting. The lack of significance in most correlations may be due to small sample sizes and seasonal variability of concentrations in soft tissues. Further research with larger sample weights and sizes is therefore necessary to draw more definitive conclusions on the usefulness of hair for biomonitoring OHCs in polar bears and other fur mammals. Article in Journal/Newspaper East Greenland Greenland Ursus maritimus IRUA - Institutional Repository van de Universiteit Antwerpen Greenland Science of The Total Environment 408 22 5613 5618 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Biology Pharmacology. Therapy Veterinary medicine |
spellingShingle |
Biology Pharmacology. Therapy Veterinary medicine Jaspers, Veerle Dietz, Rune Sonne, Christian Letcher, Robert J. Eens, Marcel Neels, Hugo Born, Erik W. Covaci, Adrian A screening of persistent organohalogenated contaminants in hair of East Greenland polar bears |
topic_facet |
Biology Pharmacology. Therapy Veterinary medicine |
description |
Abstract: In this pilot study, we report on levels of persistent organohalogenated contaminants (OHCs) in hair of polar bears (Ursus maritimus) from East Greenland sampled between 1999 and 2001. To our knowledge, this is the first study on the validation of polar bear hair as a non-invasive matrix representative of concentrations and profiles in internal organs and blood plasma. Because of low sample weights (13140 mg), only major bioaccumulative OHCs were detected above the limit of quantification: five polychlorinated biphenyl (PCB) congeners (CB 99, 138, 153, 170 and 180), one polybrominated diphenyl ether (PBDE) congener (BDE 47), oxychlordane, trans-nonachlor and β-hexachlorocyclohexane. The PCB profile in hair was similar to that of internal tissues (i.e. adipose, liver, brain and blood), with CB 153 and 180 as the major congeners in all matrices. A gender difference was found for concentrations in hair relative to concentrations in internal tissues. Females (n = 6) were found to display negative correlations, while males (n = 5) showed positive correlations, although p-values were not found significant. These negative correlations in females may reflect seasonal OHC mobilisation from periphery adipose tissue due to, for example, lactation and fasting. The lack of significance in most correlations may be due to small sample sizes and seasonal variability of concentrations in soft tissues. Further research with larger sample weights and sizes is therefore necessary to draw more definitive conclusions on the usefulness of hair for biomonitoring OHCs in polar bears and other fur mammals. |
format |
Article in Journal/Newspaper |
author |
Jaspers, Veerle Dietz, Rune Sonne, Christian Letcher, Robert J. Eens, Marcel Neels, Hugo Born, Erik W. Covaci, Adrian |
author_facet |
Jaspers, Veerle Dietz, Rune Sonne, Christian Letcher, Robert J. Eens, Marcel Neels, Hugo Born, Erik W. Covaci, Adrian |
author_sort |
Jaspers, Veerle |
title |
A screening of persistent organohalogenated contaminants in hair of East Greenland polar bears |
title_short |
A screening of persistent organohalogenated contaminants in hair of East Greenland polar bears |
title_full |
A screening of persistent organohalogenated contaminants in hair of East Greenland polar bears |
title_fullStr |
A screening of persistent organohalogenated contaminants in hair of East Greenland polar bears |
title_full_unstemmed |
A screening of persistent organohalogenated contaminants in hair of East Greenland polar bears |
title_sort |
screening of persistent organohalogenated contaminants in hair of east greenland polar bears |
publishDate |
2010 |
url |
https://hdl.handle.net/10067/842860151162165141 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
East Greenland Greenland Ursus maritimus |
genre_facet |
East Greenland Greenland Ursus maritimus |
op_source |
0048-9697 The science of the total environment |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/J.SCITOTENV.2010.07.059 info:eu-repo/semantics/altIdentifier/isi/000283611800045 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/J.SCITOTENV.2010.07.059 |
container_title |
Science of The Total Environment |
container_volume |
408 |
container_issue |
22 |
container_start_page |
5613 |
op_container_end_page |
5618 |
_version_ |
1812176410455834624 |