Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs?
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 (spat...
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ftunivmob:oai:nmbu.brage.unit.no:11250/3003744 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 Alexander Borgå, Katrine Evenset, Anita Carlsson, Pernilla Marianne Skogsberg, Stina Linnea Emelie Søreide, Janne Ruus, Anders Christensen, Guttorm Poste, Amanda 2022-05-10T20:38:09Z application/pdf https://hdl.handle.net/11250/3003744 https://doi.org/10.1021/acs.est.1c07062 eng eng Norges forskningsråd: 268458 Environmental Science and Technology. 2022, 56 (10), 6337-6348. urn:issn:0013-936X https://hdl.handle.net/11250/3003744 https://doi.org/10.1021/acs.est.1c07062 cristin:2023247 6337-6348 56 Environmental Science and Technology 10 Peer reviewed Journal article 2022 ftunivmob https://doi.org/10.1021/acs.est.1c07062 2022-07-13T22:41:12Z 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 (8PCB); 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 (∑8PCB; 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. publishedVersion Article in Journal/Newspaper arctic cryosphere Arctic Climate change Isfjord* Isfjorden Phytoplankton Svalbard Zooplankton Open archive Norwegian University of Life Sciences: Brage NMBU Arctic Svalbard Environmental Science & Technology 56 10 6337 6348 |
institution |
Open Polar |
collection |
Open archive Norwegian University of Life Sciences: Brage NMBU |
op_collection_id |
ftunivmob |
language |
English |
description |
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 (8PCB); 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 (∑8PCB; 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. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Mcgovern, Maeve Warner, Nicholas Alexander Borgå, Katrine Evenset, Anita Carlsson, Pernilla Marianne Skogsberg, Stina Linnea Emelie Søreide, Janne Ruus, Anders Christensen, Guttorm Poste, Amanda |
spellingShingle |
Mcgovern, Maeve Warner, Nicholas Alexander Borgå, Katrine Evenset, Anita Carlsson, Pernilla Marianne Skogsberg, Stina Linnea Emelie Søreide, Janne Ruus, Anders Christensen, Guttorm Poste, Amanda Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs? |
author_facet |
Mcgovern, Maeve Warner, Nicholas Alexander Borgå, Katrine Evenset, Anita Carlsson, Pernilla Marianne Skogsberg, Stina Linnea Emelie Søreide, Janne Ruus, Anders Christensen, Guttorm Poste, Amanda |
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? |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/3003744 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 |
6337-6348 56 Environmental Science and Technology 10 |
op_relation |
Norges forskningsråd: 268458 Environmental Science and Technology. 2022, 56 (10), 6337-6348. urn:issn:0013-936X https://hdl.handle.net/11250/3003744 https://doi.org/10.1021/acs.est.1c07062 cristin:2023247 |
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 |
_version_ |
1766304723002982400 |