The spatial distribution of organochlorine pesticides and halogenated flame retardants in the surface sediments of an Arctic fjord:the influence of ocean currents vs. glacial runoff
Selected organochlorine pesticides (OCs) and halogenated flame retardants (HFRs) were analyzed in surficial fjord sediments collected down the length of Kongsfjorden, Svalbard in the Norwegian high Arctic. Hexachlorocyclohexane (α-HCHs) was found to be the most abundant OC in the sediment, followed...
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Online Access: | https://eprints.lancs.ac.uk/id/eprint/71385/ https://doi.org/10.1016/j.chemosphere.2014.09.012 |
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ftulancaster:oai:eprints.lancs.ac.uk:71385 2023-08-27T04:06:44+02:00 The spatial distribution of organochlorine pesticides and halogenated flame retardants in the surface sediments of an Arctic fjord:the influence of ocean currents vs. glacial runoff Ma, Yuxin Xie, Zhiyong Halsall, Crispin Moller, Axel Yang, Haizhen Zhong, Guangcai Cai, Minghong Ebinghaus, Ralf 2015-01 https://eprints.lancs.ac.uk/id/eprint/71385/ https://doi.org/10.1016/j.chemosphere.2014.09.012 unknown Ma, Yuxin and Xie, Zhiyong and Halsall, Crispin and Moller, Axel and Yang, Haizhen and Zhong, Guangcai and Cai, Minghong and Ebinghaus, Ralf (2015) The spatial distribution of organochlorine pesticides and halogenated flame retardants in the surface sediments of an Arctic fjord:the influence of ocean currents vs. glacial runoff. Chemosphere, 119. pp. 953-960. ISSN 0045-6535 Journal Article PeerReviewed 2015 ftulancaster https://doi.org/10.1016/j.chemosphere.2014.09.012 2023-08-03T22:26:48Z Selected organochlorine pesticides (OCs) and halogenated flame retardants (HFRs) were analyzed in surficial fjord sediments collected down the length of Kongsfjorden, Svalbard in the Norwegian high Arctic. Hexachlorocyclohexane (α-HCHs) was found to be the most abundant OC in the sediment, followed by BDE-209 > chlordane > α-endosulfan > Dechlorane Plus (anti-DP)> trifluralin concentration ranges were high over the relatively small study area of the fjord (e.g. ∑HCH: 7.2–100 pg g−1 dry weight (dw)), with concentrations broadly similar to, or lower than, measurements conducted in other parts of the Arctic. Concentrations of legacy OCs, including both HCH isomers and chlordane showed a decreasing trend from the outer, seaward end of the fjord to the inner, glacier end of the fjord. Conversely, sediment concentrations of α- and β-endosulfan (0.1–12.5 pg g−1 dw) increased from the outer fjord to the inner fjord. This contrasting pattern may be attributed to the influence of historical vs. contemporary sources of these chemicals to the fjord area, whereby the North Atlantic/West Spitzbergen oceanic current dominates the transport and input of the legacy OCs, whereas atmospheric deposition and meltwater runoff from the glaciers influence the inner fjord sediments for endosulfan. Interestingly, BDE-209 and Dechlorane Plus did not reveal any clear spatial trend. It is plausible that both glacial runoff and oceanic current end members are playing a role in introducing these chemicals to the fjord sediments. The relatively low fractional abundance of the syn-DP isomer (fsyn), however, indicates the long-range transport of this chemical to this Arctic site. Article in Journal/Newspaper Arctic Arctic glacier Kongsfjord* Kongsfjorden North Atlantic Spitzbergen Svalbard Lancaster University: Lancaster Eprints Arctic Svalbard Chemosphere 119 953 960 |
institution |
Open Polar |
collection |
Lancaster University: Lancaster Eprints |
op_collection_id |
ftulancaster |
language |
unknown |
description |
Selected organochlorine pesticides (OCs) and halogenated flame retardants (HFRs) were analyzed in surficial fjord sediments collected down the length of Kongsfjorden, Svalbard in the Norwegian high Arctic. Hexachlorocyclohexane (α-HCHs) was found to be the most abundant OC in the sediment, followed by BDE-209 > chlordane > α-endosulfan > Dechlorane Plus (anti-DP)> trifluralin concentration ranges were high over the relatively small study area of the fjord (e.g. ∑HCH: 7.2–100 pg g−1 dry weight (dw)), with concentrations broadly similar to, or lower than, measurements conducted in other parts of the Arctic. Concentrations of legacy OCs, including both HCH isomers and chlordane showed a decreasing trend from the outer, seaward end of the fjord to the inner, glacier end of the fjord. Conversely, sediment concentrations of α- and β-endosulfan (0.1–12.5 pg g−1 dw) increased from the outer fjord to the inner fjord. This contrasting pattern may be attributed to the influence of historical vs. contemporary sources of these chemicals to the fjord area, whereby the North Atlantic/West Spitzbergen oceanic current dominates the transport and input of the legacy OCs, whereas atmospheric deposition and meltwater runoff from the glaciers influence the inner fjord sediments for endosulfan. Interestingly, BDE-209 and Dechlorane Plus did not reveal any clear spatial trend. It is plausible that both glacial runoff and oceanic current end members are playing a role in introducing these chemicals to the fjord sediments. The relatively low fractional abundance of the syn-DP isomer (fsyn), however, indicates the long-range transport of this chemical to this Arctic site. |
format |
Article in Journal/Newspaper |
author |
Ma, Yuxin Xie, Zhiyong Halsall, Crispin Moller, Axel Yang, Haizhen Zhong, Guangcai Cai, Minghong Ebinghaus, Ralf |
spellingShingle |
Ma, Yuxin Xie, Zhiyong Halsall, Crispin Moller, Axel Yang, Haizhen Zhong, Guangcai Cai, Minghong Ebinghaus, Ralf The spatial distribution of organochlorine pesticides and halogenated flame retardants in the surface sediments of an Arctic fjord:the influence of ocean currents vs. glacial runoff |
author_facet |
Ma, Yuxin Xie, Zhiyong Halsall, Crispin Moller, Axel Yang, Haizhen Zhong, Guangcai Cai, Minghong Ebinghaus, Ralf |
author_sort |
Ma, Yuxin |
title |
The spatial distribution of organochlorine pesticides and halogenated flame retardants in the surface sediments of an Arctic fjord:the influence of ocean currents vs. glacial runoff |
title_short |
The spatial distribution of organochlorine pesticides and halogenated flame retardants in the surface sediments of an Arctic fjord:the influence of ocean currents vs. glacial runoff |
title_full |
The spatial distribution of organochlorine pesticides and halogenated flame retardants in the surface sediments of an Arctic fjord:the influence of ocean currents vs. glacial runoff |
title_fullStr |
The spatial distribution of organochlorine pesticides and halogenated flame retardants in the surface sediments of an Arctic fjord:the influence of ocean currents vs. glacial runoff |
title_full_unstemmed |
The spatial distribution of organochlorine pesticides and halogenated flame retardants in the surface sediments of an Arctic fjord:the influence of ocean currents vs. glacial runoff |
title_sort |
spatial distribution of organochlorine pesticides and halogenated flame retardants in the surface sediments of an arctic fjord:the influence of ocean currents vs. glacial runoff |
publishDate |
2015 |
url |
https://eprints.lancs.ac.uk/id/eprint/71385/ https://doi.org/10.1016/j.chemosphere.2014.09.012 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Arctic glacier Kongsfjord* Kongsfjorden North Atlantic Spitzbergen Svalbard |
genre_facet |
Arctic Arctic glacier Kongsfjord* Kongsfjorden North Atlantic Spitzbergen Svalbard |
op_relation |
Ma, Yuxin and Xie, Zhiyong and Halsall, Crispin and Moller, Axel and Yang, Haizhen and Zhong, Guangcai and Cai, Minghong and Ebinghaus, Ralf (2015) The spatial distribution of organochlorine pesticides and halogenated flame retardants in the surface sediments of an Arctic fjord:the influence of ocean currents vs. glacial runoff. Chemosphere, 119. pp. 953-960. ISSN 0045-6535 |
op_doi |
https://doi.org/10.1016/j.chemosphere.2014.09.012 |
container_title |
Chemosphere |
container_volume |
119 |
container_start_page |
953 |
op_container_end_page |
960 |
_version_ |
1775347531747688448 |