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 samples from...
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ftunivrhodeislan:oai:digitalcommons.uri.edu:gsofacpubs-1507 2024-09-15T17:42:03+00:00 Time Trends of Polybrominated Diphenyl Ethers (PBDEs) in Antarctic Biota Markham, Erin Brault, Emily K. Khairy, Mohammed Robuck, Anna R. Goebel, Michael E. Cantwell, Mark G. Dickhut, Rebecca M. Lohmann, Rainer 2018-01-01T08:00:00Z application/pdf https://digitalcommons.uri.edu/gsofacpubs/535 https://doi.org/10.1021/acsomega.8b00440 https://digitalcommons.uri.edu/context/gsofacpubs/article/1507/viewcontent/auto_convert.pdf https://digitalcommons.uri.edu/context/gsofacpubs/article/1507/filename/0/type/additional/viewcontent/Lohmann_TimeTrends_2018_SI.docx unknown DigitalCommons@URI https://digitalcommons.uri.edu/gsofacpubs/535 doi:10.1021/acsomega.8b00440 https://digitalcommons.uri.edu/context/gsofacpubs/article/1507/viewcontent/auto_convert.pdf https://digitalcommons.uri.edu/context/gsofacpubs/article/1507/filename/0/type/additional/viewcontent/Lohmann_TimeTrends_2018_SI.docx Graduate School of Oceanography Faculty Publications text 2018 ftunivrhodeislan https://doi.org/10.1021/acsomega.8b00440 2024-08-21T00:09:33Z 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 ∑7PBDE concentrations in fur seal milk, where concentrations significantly increased (R2 = 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 University of Rhode Island: DigitalCommons@URI ACS Omega 3 6 6595 6604 |
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University of Rhode Island: DigitalCommons@URI |
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ftunivrhodeislan |
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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 ∑7PBDE concentrations in fur seal milk, where concentrations significantly increased (R2 = 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, Erin Brault, Emily K. Khairy, Mohammed Robuck, Anna R. Goebel, Michael E. Cantwell, Mark G. Dickhut, Rebecca M. Lohmann, Rainer |
spellingShingle |
Markham, Erin Brault, Emily K. Khairy, Mohammed Robuck, Anna R. Goebel, Michael E. Cantwell, Mark G. Dickhut, Rebecca M. Lohmann, Rainer Time Trends of Polybrominated Diphenyl Ethers (PBDEs) in Antarctic Biota |
author_facet |
Markham, Erin Brault, Emily K. Khairy, Mohammed Robuck, Anna R. Goebel, Michael E. Cantwell, Mark G. Dickhut, Rebecca M. Lohmann, Rainer |
author_sort |
Markham, Erin |
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 |
DigitalCommons@URI |
publishDate |
2018 |
url |
https://digitalcommons.uri.edu/gsofacpubs/535 https://doi.org/10.1021/acsomega.8b00440 https://digitalcommons.uri.edu/context/gsofacpubs/article/1507/viewcontent/auto_convert.pdf https://digitalcommons.uri.edu/context/gsofacpubs/article/1507/filename/0/type/additional/viewcontent/Lohmann_TimeTrends_2018_SI.docx |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Graduate School of Oceanography Faculty Publications |
op_relation |
https://digitalcommons.uri.edu/gsofacpubs/535 doi:10.1021/acsomega.8b00440 https://digitalcommons.uri.edu/context/gsofacpubs/article/1507/viewcontent/auto_convert.pdf https://digitalcommons.uri.edu/context/gsofacpubs/article/1507/filename/0/type/additional/viewcontent/Lohmann_TimeTrends_2018_SI.docx |
op_doi |
https://doi.org/10.1021/acsomega.8b00440 |
container_title |
ACS Omega |
container_volume |
3 |
container_issue |
6 |
container_start_page |
6595 |
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6604 |
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1810488418331787264 |