Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs?
[Image: see text] Climate change-driven increases in air and sea temperatures are rapidly thawing the Arctic cryosphere with potential for remobilization and accumulation of legacy persistent organic pollutants (POPs) in adjacent coastal food webs. Here, we present concentrations of selected POPs in...
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American Chemical Society
2022
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9118541/ http://www.ncbi.nlm.nih.gov/pubmed/35472293 https://doi.org/10.1021/acs.est.1c07062 |
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ftpubmed:oai:pubmedcentral.nih.gov:9118541 2023-05-15T14:30:58+02:00 Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs? McGovern, Maeve Warner, Nicholas A. Borgå, Katrine Evenset, Anita Carlsson, Pernilla Skogsberg, Emelie Søreide, Janne E. Ruus, Anders Christensen, Guttorm Poste, Amanda E. 2022-04-26 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9118541/ http://www.ncbi.nlm.nih.gov/pubmed/35472293 https://doi.org/10.1021/acs.est.1c07062 en eng American Chemical Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9118541/ http://www.ncbi.nlm.nih.gov/pubmed/35472293 http://dx.doi.org/10.1021/acs.est.1c07062 © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). CC-BY Environ Sci Technol Text 2022 ftpubmed https://doi.org/10.1021/acs.est.1c07062 2022-05-22T00:59:51Z [Image: see text] Climate change-driven increases in air and sea temperatures are rapidly thawing the Arctic cryosphere with potential for remobilization and accumulation of legacy persistent organic pollutants (POPs) in adjacent coastal food webs. Here, we present concentrations of selected POPs in zooplankton (spatially and seasonally), as well as zoobenthos and sculpin (spatially) from Isfjorden, Svalbard. Herbivorous zooplankton contaminant concentrations were highest in May [e.g., ∑polychlorinated biphenyls ((8)PCB); 4.43, 95% CI: 2.72–6.3 ng/g lipid weight], coinciding with the final stages of the spring phytoplankton bloom, and lowest in August (∑(8)PCB; 1.6, 95% CI: 1.29–1.92 ng/g lipid weight) when zooplankton lipid content was highest, and the fjord was heavily impacted by sediment-laden terrestrial inputs. Slightly increasing concentrations of α-hexachlorocyclohexane (α-HCH) in zooplankton from June (1.18, 95% CI: 1.06–1.29 ng/g lipid weight) to August (1.57, 95% CI: 1.44–1.71 ng/g lipid weight), alongside a higher percentage of α-HCH enantiomeric fractions closer to racemic ranges, indicate that glacial meltwater is a secondary source of α-HCH to fjord zooplankton in late summer. Except for α-HCH, terrestrial inputs were generally associated with reduced POP concentrations in zooplankton, suggesting that increased glacial melt is not likely to significantly increase exposure of legacy POPs in coastal fauna. Text arctic cryosphere Arctic Climate change Isfjord* Isfjorden Phytoplankton Svalbard Zooplankton PubMed Central (PMC) Arctic Svalbard Environmental Science & Technology 56 10 6337 6348 |
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PubMed Central (PMC) |
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ftpubmed |
language |
English |
description |
[Image: see text] Climate change-driven increases in air and sea temperatures are rapidly thawing the Arctic cryosphere with potential for remobilization and accumulation of legacy persistent organic pollutants (POPs) in adjacent coastal food webs. Here, we present concentrations of selected POPs in zooplankton (spatially and seasonally), as well as zoobenthos and sculpin (spatially) from Isfjorden, Svalbard. Herbivorous zooplankton contaminant concentrations were highest in May [e.g., ∑polychlorinated biphenyls ((8)PCB); 4.43, 95% CI: 2.72–6.3 ng/g lipid weight], coinciding with the final stages of the spring phytoplankton bloom, and lowest in August (∑(8)PCB; 1.6, 95% CI: 1.29–1.92 ng/g lipid weight) when zooplankton lipid content was highest, and the fjord was heavily impacted by sediment-laden terrestrial inputs. Slightly increasing concentrations of α-hexachlorocyclohexane (α-HCH) in zooplankton from June (1.18, 95% CI: 1.06–1.29 ng/g lipid weight) to August (1.57, 95% CI: 1.44–1.71 ng/g lipid weight), alongside a higher percentage of α-HCH enantiomeric fractions closer to racemic ranges, indicate that glacial meltwater is a secondary source of α-HCH to fjord zooplankton in late summer. Except for α-HCH, terrestrial inputs were generally associated with reduced POP concentrations in zooplankton, suggesting that increased glacial melt is not likely to significantly increase exposure of legacy POPs in coastal fauna. |
format |
Text |
author |
McGovern, Maeve Warner, Nicholas A. Borgå, Katrine Evenset, Anita Carlsson, Pernilla Skogsberg, Emelie Søreide, Janne E. Ruus, Anders Christensen, Guttorm Poste, Amanda E. |
spellingShingle |
McGovern, Maeve Warner, Nicholas A. Borgå, Katrine Evenset, Anita Carlsson, Pernilla Skogsberg, Emelie Søreide, Janne E. Ruus, Anders Christensen, Guttorm Poste, Amanda E. Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs? |
author_facet |
McGovern, Maeve Warner, Nicholas A. Borgå, Katrine Evenset, Anita Carlsson, Pernilla Skogsberg, Emelie Søreide, Janne E. Ruus, Anders Christensen, Guttorm Poste, Amanda E. |
author_sort |
McGovern, Maeve |
title |
Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs? |
title_short |
Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs? |
title_full |
Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs? |
title_fullStr |
Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs? |
title_full_unstemmed |
Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs? |
title_sort |
is glacial meltwater a secondary source of legacy contaminants to arctic coastal food webs? |
publisher |
American Chemical Society |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9118541/ http://www.ncbi.nlm.nih.gov/pubmed/35472293 https://doi.org/10.1021/acs.est.1c07062 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
arctic cryosphere Arctic Climate change Isfjord* Isfjorden Phytoplankton Svalbard Zooplankton |
genre_facet |
arctic cryosphere Arctic Climate change Isfjord* Isfjorden Phytoplankton Svalbard Zooplankton |
op_source |
Environ Sci Technol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9118541/ http://www.ncbi.nlm.nih.gov/pubmed/35472293 http://dx.doi.org/10.1021/acs.est.1c07062 |
op_rights |
© 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1021/acs.est.1c07062 |
container_title |
Environmental Science & Technology |
container_volume |
56 |
container_issue |
10 |
container_start_page |
6337 |
op_container_end_page |
6348 |
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1766304721561190400 |