Time Trends of Polybrominated Diphenyl Ethers (PBDEs) in Antarctic Biota
Polybrominated diphenyl ethers (PBDEs) are "emerged" contaminants that were produced and used as flame retardants in numerous consumer and industrial applications for decades until banned. They remain ubiquitously present in the environment today. Here, a unique set of >200 biotic sampl...
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ftwilliammarycol:oai:scholarworks.wm.edu:vimsarticles-1740 2023-06-11T04:05:58+02:00 Time Trends of Polybrominated Diphenyl Ethers (PBDEs) in Antarctic Biota Markham, E Brault, EK Khairy, M Robuck, AR Goebel, ME Cantwell, MG Dickhut, RM Lohmann, R 2018-01-01T08:00:00Z application/pdf https://scholarworks.wm.edu/vimsarticles/740 doi: 10.1021/acsomega.8b00440 https://scholarworks.wm.edu/context/vimsarticles/article/1740/viewcontent/acsomega.8b00440.pdf unknown W&M ScholarWorks https://scholarworks.wm.edu/vimsarticles/740 doi: 10.1021/acsomega.8b00440 https://scholarworks.wm.edu/context/vimsarticles/article/1740/viewcontent/acsomega.8b00440.pdf VIMS Articles Persistent Organic Pollutants Brominated Flame Retardants Marine Food-Web Arctocephalus-Gazella Trematomus-Bernacchii George Island Use Patterns Environment Atmosphere Snow Physical Sciences Peer-Reviewed Articles Aquaculture and Fisheries text 2018 ftwilliammarycol https://doi.org/10.1021/acsomega.8b00440 2023-05-04T17:43:24Z Polybrominated diphenyl ethers (PBDEs) are "emerged" contaminants that were produced and used as flame retardants in numerous consumer and industrial applications for decades until banned. They remain ubiquitously present in the environment today. Here, a unique set of >200 biotic samples from the Antarctic was analyzed for PBDEs, including phytoplankton, krill, fish, and fur seal milk, spanning several sampling seasons over 14 years. PBDE-47 and -99 were the dominant congeners determined in all samples, constituting > 60% of total PBDEs. A temporal trend was observed for Sigma 7PBDE concentrations in fur seal milk, where concentrations significantly increased (R-2 = 0.57, p < 0.05) over time (2000-2014). Results for krill and phytoplankton also suggested increasing PBDE concentrations over time. Trends of PBDEs in fur seal milk of individual seals sampled 1 or more years apart showed no clear temporal trends. Overall, there was no indication of PBDEs decreasing in Antarctic biota yet, whereas numerous studies have reported decreasing trends in the northern hemisphere. Similar PBDE concentrations in perinatal versus nonperinatal milk implied the importance of local PBDE sources for bioaccumulation. These results indicate the need for continued assessment of contaminant trends, such as PBDEs, and their replacements, in Antarctica. Text Antarc* Antarctic Antarctica Arctocephalus gazella W&M ScholarWorks Antarctic The Antarctic ACS Omega 3 6 6595 6604 |
institution |
Open Polar |
collection |
W&M ScholarWorks |
op_collection_id |
ftwilliammarycol |
language |
unknown |
topic |
Persistent Organic Pollutants Brominated Flame Retardants Marine Food-Web Arctocephalus-Gazella Trematomus-Bernacchii George Island Use Patterns Environment Atmosphere Snow Physical Sciences Peer-Reviewed Articles Aquaculture and Fisheries |
spellingShingle |
Persistent Organic Pollutants Brominated Flame Retardants Marine Food-Web Arctocephalus-Gazella Trematomus-Bernacchii George Island Use Patterns Environment Atmosphere Snow Physical Sciences Peer-Reviewed Articles Aquaculture and Fisheries Markham, E Brault, EK Khairy, M Robuck, AR Goebel, ME Cantwell, MG Dickhut, RM Lohmann, R Time Trends of Polybrominated Diphenyl Ethers (PBDEs) in Antarctic Biota |
topic_facet |
Persistent Organic Pollutants Brominated Flame Retardants Marine Food-Web Arctocephalus-Gazella Trematomus-Bernacchii George Island Use Patterns Environment Atmosphere Snow Physical Sciences Peer-Reviewed Articles Aquaculture and Fisheries |
description |
Polybrominated diphenyl ethers (PBDEs) are "emerged" contaminants that were produced and used as flame retardants in numerous consumer and industrial applications for decades until banned. They remain ubiquitously present in the environment today. Here, a unique set of >200 biotic samples from the Antarctic was analyzed for PBDEs, including phytoplankton, krill, fish, and fur seal milk, spanning several sampling seasons over 14 years. PBDE-47 and -99 were the dominant congeners determined in all samples, constituting > 60% of total PBDEs. A temporal trend was observed for Sigma 7PBDE concentrations in fur seal milk, where concentrations significantly increased (R-2 = 0.57, p < 0.05) over time (2000-2014). Results for krill and phytoplankton also suggested increasing PBDE concentrations over time. Trends of PBDEs in fur seal milk of individual seals sampled 1 or more years apart showed no clear temporal trends. Overall, there was no indication of PBDEs decreasing in Antarctic biota yet, whereas numerous studies have reported decreasing trends in the northern hemisphere. Similar PBDE concentrations in perinatal versus nonperinatal milk implied the importance of local PBDE sources for bioaccumulation. These results indicate the need for continued assessment of contaminant trends, such as PBDEs, and their replacements, in Antarctica. |
format |
Text |
author |
Markham, E Brault, EK Khairy, M Robuck, AR Goebel, ME Cantwell, MG Dickhut, RM Lohmann, R |
author_facet |
Markham, E Brault, EK Khairy, M Robuck, AR Goebel, ME Cantwell, MG Dickhut, RM Lohmann, R |
author_sort |
Markham, E |
title |
Time Trends of Polybrominated Diphenyl Ethers (PBDEs) in Antarctic Biota |
title_short |
Time Trends of Polybrominated Diphenyl Ethers (PBDEs) in Antarctic Biota |
title_full |
Time Trends of Polybrominated Diphenyl Ethers (PBDEs) in Antarctic Biota |
title_fullStr |
Time Trends of Polybrominated Diphenyl Ethers (PBDEs) in Antarctic Biota |
title_full_unstemmed |
Time Trends of Polybrominated Diphenyl Ethers (PBDEs) in Antarctic Biota |
title_sort |
time trends of polybrominated diphenyl ethers (pbdes) in antarctic biota |
publisher |
W&M ScholarWorks |
publishDate |
2018 |
url |
https://scholarworks.wm.edu/vimsarticles/740 https://scholarworks.wm.edu/context/vimsarticles/article/1740/viewcontent/acsomega.8b00440.pdf |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Arctocephalus gazella |
genre_facet |
Antarc* Antarctic Antarctica Arctocephalus gazella |
op_source |
VIMS Articles |
op_relation |
https://scholarworks.wm.edu/vimsarticles/740 doi: 10.1021/acsomega.8b00440 https://scholarworks.wm.edu/context/vimsarticles/article/1740/viewcontent/acsomega.8b00440.pdf |
op_doi |
https://doi.org/10.1021/acsomega.8b00440 |
container_title |
ACS Omega |
container_volume |
3 |
container_issue |
6 |
container_start_page |
6595 |
op_container_end_page |
6604 |
_version_ |
1768377685648605184 |