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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American chemical society
2022
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Online Access: | https://hdl.handle.net/10037/25654 https://doi.org/10.1021/acs.est.1c07062 |
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ftunivtroemsoe:oai:munin.uit.no:10037/25654 2023-05-15T14:25:43+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 2022-04-26 https://hdl.handle.net/10037/25654 https://doi.org/10.1021/acs.est.1c07062 eng eng American chemical society Environmental Science and Technology Mcgovern, Warner, Borgå, Evenset, Carlsson, Skogsberg, Søreide, Ruus, Christensen, Poste. Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs?. Environmental Science and Technology. 2022;56(10):6337-6348 FRIDAID 2023247 doi:10.1021/acs.est.1c07062 0013-936X 1520-5851 https://hdl.handle.net/10037/25654 openAccess Copyright 2022 The Author(s) Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2022 ftunivtroemsoe https://doi.org/10.1021/acs.est.1c07062 2022-07-06T22:58:56Z 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 αHCH 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. Article in Journal/Newspaper Arctic arctic cryosphere Arctic Climate change Isfjord* Isfjorden Phytoplankton Svalbard Zooplankton University of Tromsø: Munin Open Research Archive Arctic Svalbard Environmental Science & Technology 56 10 6337 6348 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
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 ( 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 αHCH 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 |
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? |
publisher |
American chemical society |
publishDate |
2022 |
url |
https://hdl.handle.net/10037/25654 https://doi.org/10.1021/acs.est.1c07062 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic arctic cryosphere Arctic Climate change Isfjord* Isfjorden Phytoplankton Svalbard Zooplankton |
genre_facet |
Arctic arctic cryosphere Arctic Climate change Isfjord* Isfjorden Phytoplankton Svalbard Zooplankton |
op_relation |
Environmental Science and Technology Mcgovern, Warner, Borgå, Evenset, Carlsson, Skogsberg, Søreide, Ruus, Christensen, Poste. Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs?. Environmental Science and Technology. 2022;56(10):6337-6348 FRIDAID 2023247 doi:10.1021/acs.est.1c07062 0013-936X 1520-5851 https://hdl.handle.net/10037/25654 |
op_rights |
openAccess Copyright 2022 The Author(s) |
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_ |
1766298182817415168 |