Characterization and Interpolation of Sediment Polychlorinated Biphenyls and Polybrominated Diphenyl Ethers in Resident Killer Whale Habitat along the Coast of British Columbia, Canada
Abstract The northeastern Pacific northern and southern resident killer whale ( Orcinus orca ) populations are listed as threatened and endangered in Canada, respectively, with persistent, bioaccumulative contaminants, such as polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDE...
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Online Access: | http://dx.doi.org/10.1002/etc.5404 https://onlinelibrary.wiley.com/doi/pdf/10.1002/etc.5404 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/etc.5404 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.5404 |
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crwiley:10.1002/etc.5404 2024-06-02T08:09:51+00:00 Characterization and Interpolation of Sediment Polychlorinated Biphenyls and Polybrominated Diphenyl Ethers in Resident Killer Whale Habitat along the Coast of British Columbia, Canada Kim, Joseph J. Delisle, Kelsey Brown, Tanya M. Bishay, Farida Ross, Peter S. Noël, Marie 2022 http://dx.doi.org/10.1002/etc.5404 https://onlinelibrary.wiley.com/doi/pdf/10.1002/etc.5404 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/etc.5404 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.5404 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Toxicology and Chemistry volume 41, issue 9, page 2139-2151 ISSN 0730-7268 1552-8618 journal-article 2022 crwiley https://doi.org/10.1002/etc.5404 2024-05-03T10:48:18Z Abstract The northeastern Pacific northern and southern resident killer whale ( Orcinus orca ) populations are listed as threatened and endangered in Canada, respectively, with persistent, bioaccumulative contaminants, such as polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs), posing threats to their recovery. Concentrations of PCBs and PBDEs in subtidal surface sediments collected from 97 sites along the British Columbia (BC) coast were used to identify their distribution and profiles, and to assess killer whale habitat quality. Victoria Harbour (VH3 (site ID: 1) ) sediments exhibited the highest PCB and PBDE concentrations. For PCBs, PCB‐138 was found at the highest concentration, followed by PCB‐153, PCB‐110, PCB‐149, PCB‐101, and PCB‐118. For PBDEs, individual congeners were ranked as follows: BDE‐209 > BDE‐207 > BDE‐206 > BDE‐208 > BDE‐47 > BDE‐99. Principal component analyses (PCA) illustrated the variations in contaminant profiles, with PC1 for PCBs and PBDEs correlated with the octanol‐water partition coefficient (log K OW , p < 0.003). Based on the PCA, sediment particle size, total organic carbon (TOC), and water depth at collection were other factors associated with the distribution of PBDEs, while PCB profiles were associated with TOC. Total PCB and PBDE concentrations at 100% and 34% of the sites, respectively, exceeded the recently adopted British Columbia's Ministry of Environment and Climate Change Strategy Working Sediment Quality Guidelines (PCBs 3.7 pg/g dry wt and PBDEs 1000 pg/g dry wt), considered protective of killer whales. Our findings suggest that the legacy of banned PCBs and PBDEs has the potential to constrain the recovery of killer whales as a result of their mobilization from sediments and consequent uptake by marine food webs. Environ Toxicol Chem 2022;41:2139–2151. © 2022 SETAC Article in Journal/Newspaper Killer Whale Orca Orcinus orca Killer whale Wiley Online Library British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada Pacific Victoria Harbour ENVELOPE(-91.583,-91.583,70.151,70.151) Environmental Toxicology and Chemistry 41 9 2139 2151 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract The northeastern Pacific northern and southern resident killer whale ( Orcinus orca ) populations are listed as threatened and endangered in Canada, respectively, with persistent, bioaccumulative contaminants, such as polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs), posing threats to their recovery. Concentrations of PCBs and PBDEs in subtidal surface sediments collected from 97 sites along the British Columbia (BC) coast were used to identify their distribution and profiles, and to assess killer whale habitat quality. Victoria Harbour (VH3 (site ID: 1) ) sediments exhibited the highest PCB and PBDE concentrations. For PCBs, PCB‐138 was found at the highest concentration, followed by PCB‐153, PCB‐110, PCB‐149, PCB‐101, and PCB‐118. For PBDEs, individual congeners were ranked as follows: BDE‐209 > BDE‐207 > BDE‐206 > BDE‐208 > BDE‐47 > BDE‐99. Principal component analyses (PCA) illustrated the variations in contaminant profiles, with PC1 for PCBs and PBDEs correlated with the octanol‐water partition coefficient (log K OW , p < 0.003). Based on the PCA, sediment particle size, total organic carbon (TOC), and water depth at collection were other factors associated with the distribution of PBDEs, while PCB profiles were associated with TOC. Total PCB and PBDE concentrations at 100% and 34% of the sites, respectively, exceeded the recently adopted British Columbia's Ministry of Environment and Climate Change Strategy Working Sediment Quality Guidelines (PCBs 3.7 pg/g dry wt and PBDEs 1000 pg/g dry wt), considered protective of killer whales. Our findings suggest that the legacy of banned PCBs and PBDEs has the potential to constrain the recovery of killer whales as a result of their mobilization from sediments and consequent uptake by marine food webs. Environ Toxicol Chem 2022;41:2139–2151. © 2022 SETAC |
format |
Article in Journal/Newspaper |
author |
Kim, Joseph J. Delisle, Kelsey Brown, Tanya M. Bishay, Farida Ross, Peter S. Noël, Marie |
spellingShingle |
Kim, Joseph J. Delisle, Kelsey Brown, Tanya M. Bishay, Farida Ross, Peter S. Noël, Marie Characterization and Interpolation of Sediment Polychlorinated Biphenyls and Polybrominated Diphenyl Ethers in Resident Killer Whale Habitat along the Coast of British Columbia, Canada |
author_facet |
Kim, Joseph J. Delisle, Kelsey Brown, Tanya M. Bishay, Farida Ross, Peter S. Noël, Marie |
author_sort |
Kim, Joseph J. |
title |
Characterization and Interpolation of Sediment Polychlorinated Biphenyls and Polybrominated Diphenyl Ethers in Resident Killer Whale Habitat along the Coast of British Columbia, Canada |
title_short |
Characterization and Interpolation of Sediment Polychlorinated Biphenyls and Polybrominated Diphenyl Ethers in Resident Killer Whale Habitat along the Coast of British Columbia, Canada |
title_full |
Characterization and Interpolation of Sediment Polychlorinated Biphenyls and Polybrominated Diphenyl Ethers in Resident Killer Whale Habitat along the Coast of British Columbia, Canada |
title_fullStr |
Characterization and Interpolation of Sediment Polychlorinated Biphenyls and Polybrominated Diphenyl Ethers in Resident Killer Whale Habitat along the Coast of British Columbia, Canada |
title_full_unstemmed |
Characterization and Interpolation of Sediment Polychlorinated Biphenyls and Polybrominated Diphenyl Ethers in Resident Killer Whale Habitat along the Coast of British Columbia, Canada |
title_sort |
characterization and interpolation of sediment polychlorinated biphenyls and polybrominated diphenyl ethers in resident killer whale habitat along the coast of british columbia, canada |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/etc.5404 https://onlinelibrary.wiley.com/doi/pdf/10.1002/etc.5404 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/etc.5404 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.5404 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) ENVELOPE(-91.583,-91.583,70.151,70.151) |
geographic |
British Columbia Canada Pacific Victoria Harbour |
geographic_facet |
British Columbia Canada Pacific Victoria Harbour |
genre |
Killer Whale Orca Orcinus orca Killer whale |
genre_facet |
Killer Whale Orca Orcinus orca Killer whale |
op_source |
Environmental Toxicology and Chemistry volume 41, issue 9, page 2139-2151 ISSN 0730-7268 1552-8618 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/etc.5404 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
41 |
container_issue |
9 |
container_start_page |
2139 |
op_container_end_page |
2151 |
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1800755631039184896 |