Persistent organic pollutants in the diet of harbor seals (Phoca vitulina) inhabiting
Abstract-Harbor seals (Phoca vitulina) inhabiting Puget Sound (WA, USA) recently were found to be seven times more contaminated with polychlorinated biphenyls (PCBs) than those inhabiting the adjacent Strait of Georgia (BC, Canada). We carried out a food basket approach to approximate realistic diet...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1047.8611 2023-05-15T17:58:52+02:00 Persistent organic pollutants in the diet of harbor seals (Phoca vitulina) inhabiting Donna L Cullon Steven J Jeffries Peter S Ross The Pennsylvania State University CiteSeerX Archives 2005 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1047.8611 http://faculty.wwu.edu/%7Eshulld/ESCI%20432/Cullon2005PCB.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1047.8611 http://faculty.wwu.edu/%7Eshulld/ESCI%20432/Cullon2005PCB.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://faculty.wwu.edu/%7Eshulld/ESCI%20432/Cullon2005PCB.pdf text 2005 ftciteseerx 2020-04-05T00:22:06Z Abstract-Harbor seals (Phoca vitulina) inhabiting Puget Sound (WA, USA) recently were found to be seven times more contaminated with polychlorinated biphenyls (PCBs) than those inhabiting the adjacent Strait of Georgia (BC, Canada). We carried out a food basket approach to approximate realistic dietary exposures of both new (e.g., polybrominated diphenyl ethers [PBDEs]) and legacy (e.g., dichlorodiphenyltrichloroethane [DDT]) persistent organic pollutants (POPs) for these harbor seals. Food basket homogenates, each consisting of over 200 individual prey items, were constructed using documented dietary preferences for harbor seals in these basins, and analyzed for organochlorine pesticides, flame retardants, and other persistent contaminants. Concentration rankings for the major contaminant classes in the Puget Sound food basket were ⌺PCBs Ͼ ⌺PBDEs Ͼ ⌺DDT, and for the Strait of Georgia food basket were ⌺PCBs Ͼ ⌺DDT Ͼ ⌺PBDEs, highlighting the emergence of PBDEs as a significant concern in the regional environment. Consistent with observations in harbor seals, PCB concentrations in the Puget Sound food basket were seven times higher than in its Strait of Georgia counterpart. Based on our food basket results, the estimated daily intake of ⌺PCB toxic equivalents to dioxin by Puget Sound harbor seals exceeds some wildlife consumption guidelines for PCBs. Our results indicate that both legacy and new POPs present a health risk to these marine mammals. Text Phoca vitulina Unknown Canada |
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Abstract-Harbor seals (Phoca vitulina) inhabiting Puget Sound (WA, USA) recently were found to be seven times more contaminated with polychlorinated biphenyls (PCBs) than those inhabiting the adjacent Strait of Georgia (BC, Canada). We carried out a food basket approach to approximate realistic dietary exposures of both new (e.g., polybrominated diphenyl ethers [PBDEs]) and legacy (e.g., dichlorodiphenyltrichloroethane [DDT]) persistent organic pollutants (POPs) for these harbor seals. Food basket homogenates, each consisting of over 200 individual prey items, were constructed using documented dietary preferences for harbor seals in these basins, and analyzed for organochlorine pesticides, flame retardants, and other persistent contaminants. Concentration rankings for the major contaminant classes in the Puget Sound food basket were ⌺PCBs Ͼ ⌺PBDEs Ͼ ⌺DDT, and for the Strait of Georgia food basket were ⌺PCBs Ͼ ⌺DDT Ͼ ⌺PBDEs, highlighting the emergence of PBDEs as a significant concern in the regional environment. Consistent with observations in harbor seals, PCB concentrations in the Puget Sound food basket were seven times higher than in its Strait of Georgia counterpart. Based on our food basket results, the estimated daily intake of ⌺PCB toxic equivalents to dioxin by Puget Sound harbor seals exceeds some wildlife consumption guidelines for PCBs. Our results indicate that both legacy and new POPs present a health risk to these marine mammals. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Donna L Cullon Steven J Jeffries Peter S Ross |
spellingShingle |
Donna L Cullon Steven J Jeffries Peter S Ross Persistent organic pollutants in the diet of harbor seals (Phoca vitulina) inhabiting |
author_facet |
Donna L Cullon Steven J Jeffries Peter S Ross |
author_sort |
Donna L Cullon |
title |
Persistent organic pollutants in the diet of harbor seals (Phoca vitulina) inhabiting |
title_short |
Persistent organic pollutants in the diet of harbor seals (Phoca vitulina) inhabiting |
title_full |
Persistent organic pollutants in the diet of harbor seals (Phoca vitulina) inhabiting |
title_fullStr |
Persistent organic pollutants in the diet of harbor seals (Phoca vitulina) inhabiting |
title_full_unstemmed |
Persistent organic pollutants in the diet of harbor seals (Phoca vitulina) inhabiting |
title_sort |
persistent organic pollutants in the diet of harbor seals (phoca vitulina) inhabiting |
publishDate |
2005 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1047.8611 http://faculty.wwu.edu/%7Eshulld/ESCI%20432/Cullon2005PCB.pdf |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Phoca vitulina |
genre_facet |
Phoca vitulina |
op_source |
http://faculty.wwu.edu/%7Eshulld/ESCI%20432/Cullon2005PCB.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1047.8611 http://faculty.wwu.edu/%7Eshulld/ESCI%20432/Cullon2005PCB.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766167589655937024 |