Dechloranes and chlorinated paraffins in sediments and biota of two subarctic lakes
Our understanding of the environmental behavior, bioaccumulation and concentrations of chlorinated paraffins (CPs) and Dechloranes (Dec) in the Arctic environment is still limited, particularly in freshwater ecosystems. In this descriptive study, short chain (SCCPs) and medium chain (MCCPs) CPs, Dec...
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Online Access: | https://hdl.handle.net/11250/3136128 https://doi.org/10.3389/ftox.2024.1298231 |
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ftnilu:oai:nilu.brage.unit.no:11250/3136128 2024-09-15T18:25:54+00:00 Dechloranes and chlorinated paraffins in sediments and biota of two subarctic lakes Arriola, Aline Al Saify, Insam Warner, Nicholas Alexander Herzke, Dorte Harju, Mikael Amundsen, Per-Arne Evenset, Anita Möckel, Claudia Krogseth, Ingjerd Sunde 2024 application/pdf https://hdl.handle.net/11250/3136128 https://doi.org/10.3389/ftox.2024.1298231 eng eng Norges forskningsråd: 244298 Norges forskningsråd: 287114 Norges forskningsråd: 267574 Framsenteret: 132018 NILU: 119008 NILU: 117044 NILU: 117056 NILU: 115027 Frontiers in Toxicology. 2024, 6, 1298231. https://hdl.handle.net/11250/3136128 https://doi.org/10.3389/ftox.2024.1298231 cristin:2274965 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2024 Arriola, Al Saify, Warner, Herzke, Harju, Amundsen, Evenset, Möckel and Krogseth. 6 Frontiers in Toxicology 1298231 Peer reviewed Journal article 2024 ftnilu https://doi.org/10.3389/ftox.2024.1298231 2024-07-01T23:30:57Z Our understanding of the environmental behavior, bioaccumulation and concentrations of chlorinated paraffins (CPs) and Dechloranes (Dec) in the Arctic environment is still limited, particularly in freshwater ecosystems. In this descriptive study, short chain (SCCPs) and medium chain (MCCPs) CPs, Dechlorane Plus (DP) and analogues, and polychlorinated biphenyls (PCBs) were measured in sediments, benthic organisms, three-spined stickleback (Gasterosteus aculeatus), Arctic char (Salvelinus alpinus) and brown trout (Salmo trutta) in two Sub-Arctic lakes in Northern Norway. Takvannet (TA) is a remote lake, with no known local sources for organic contaminants, while Storvannet (ST) is situated in a populated area. SCCPs and MCCPs were detected in all sediment samples from ST with concentration of 42.26–115.29 ng/g dw and 66.18–136.69 ng/g dw for SCCPs and MCCPs, respectively. Only SCCPs were detected in TA sediments (0.4–5.28 ng/g dw). In biota samples, sticklebacks and benthic organisms showed the highest concentrations of CPs, while concentrations were low or below detection limits in both char and trout. The congener group patterns observed in both lakes showed SCCP profiles dominated by higher chlorinated congener groups while the MCCPs showed consistency in their profiles, with C14 being the most prevalent carbon chain length. Anti- and syn-DP isomers were detected in all sediment, benthic and stickleback samples with higher concentrations in ST than in TA. However, they were only present in a few char and trout samples from ST. Dec 601 and 604 were below detection limits in all samples in both lakes. Dec 603 was detected only in ST sediments, sticklebacks and 2 trout samples, while Dec 602 was the only DP analogue found in all samples from both lakes. While there were clear differences in sediment concentrations of DP and Dec 602 between ST and TA, differences between lakes decreased with increasing δ15N. This pattern was similar to the PCB behavior, suggesting the lake characteristics in ST are playing an ... Article in Journal/Newspaper Northern Norway Salvelinus alpinus Subarctic NILU – Norwegian Institute for Air Research: NILU Brage Frontiers in Toxicology 6 |
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Open Polar |
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NILU – Norwegian Institute for Air Research: NILU Brage |
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ftnilu |
language |
English |
description |
Our understanding of the environmental behavior, bioaccumulation and concentrations of chlorinated paraffins (CPs) and Dechloranes (Dec) in the Arctic environment is still limited, particularly in freshwater ecosystems. In this descriptive study, short chain (SCCPs) and medium chain (MCCPs) CPs, Dechlorane Plus (DP) and analogues, and polychlorinated biphenyls (PCBs) were measured in sediments, benthic organisms, three-spined stickleback (Gasterosteus aculeatus), Arctic char (Salvelinus alpinus) and brown trout (Salmo trutta) in two Sub-Arctic lakes in Northern Norway. Takvannet (TA) is a remote lake, with no known local sources for organic contaminants, while Storvannet (ST) is situated in a populated area. SCCPs and MCCPs were detected in all sediment samples from ST with concentration of 42.26–115.29 ng/g dw and 66.18–136.69 ng/g dw for SCCPs and MCCPs, respectively. Only SCCPs were detected in TA sediments (0.4–5.28 ng/g dw). In biota samples, sticklebacks and benthic organisms showed the highest concentrations of CPs, while concentrations were low or below detection limits in both char and trout. The congener group patterns observed in both lakes showed SCCP profiles dominated by higher chlorinated congener groups while the MCCPs showed consistency in their profiles, with C14 being the most prevalent carbon chain length. Anti- and syn-DP isomers were detected in all sediment, benthic and stickleback samples with higher concentrations in ST than in TA. However, they were only present in a few char and trout samples from ST. Dec 601 and 604 were below detection limits in all samples in both lakes. Dec 603 was detected only in ST sediments, sticklebacks and 2 trout samples, while Dec 602 was the only DP analogue found in all samples from both lakes. While there were clear differences in sediment concentrations of DP and Dec 602 between ST and TA, differences between lakes decreased with increasing δ15N. This pattern was similar to the PCB behavior, suggesting the lake characteristics in ST are playing an ... |
format |
Article in Journal/Newspaper |
author |
Arriola, Aline Al Saify, Insam Warner, Nicholas Alexander Herzke, Dorte Harju, Mikael Amundsen, Per-Arne Evenset, Anita Möckel, Claudia Krogseth, Ingjerd Sunde |
spellingShingle |
Arriola, Aline Al Saify, Insam Warner, Nicholas Alexander Herzke, Dorte Harju, Mikael Amundsen, Per-Arne Evenset, Anita Möckel, Claudia Krogseth, Ingjerd Sunde Dechloranes and chlorinated paraffins in sediments and biota of two subarctic lakes |
author_facet |
Arriola, Aline Al Saify, Insam Warner, Nicholas Alexander Herzke, Dorte Harju, Mikael Amundsen, Per-Arne Evenset, Anita Möckel, Claudia Krogseth, Ingjerd Sunde |
author_sort |
Arriola, Aline |
title |
Dechloranes and chlorinated paraffins in sediments and biota of two subarctic lakes |
title_short |
Dechloranes and chlorinated paraffins in sediments and biota of two subarctic lakes |
title_full |
Dechloranes and chlorinated paraffins in sediments and biota of two subarctic lakes |
title_fullStr |
Dechloranes and chlorinated paraffins in sediments and biota of two subarctic lakes |
title_full_unstemmed |
Dechloranes and chlorinated paraffins in sediments and biota of two subarctic lakes |
title_sort |
dechloranes and chlorinated paraffins in sediments and biota of two subarctic lakes |
publishDate |
2024 |
url |
https://hdl.handle.net/11250/3136128 https://doi.org/10.3389/ftox.2024.1298231 |
genre |
Northern Norway Salvelinus alpinus Subarctic |
genre_facet |
Northern Norway Salvelinus alpinus Subarctic |
op_source |
6 Frontiers in Toxicology 1298231 |
op_relation |
Norges forskningsråd: 244298 Norges forskningsråd: 287114 Norges forskningsråd: 267574 Framsenteret: 132018 NILU: 119008 NILU: 117044 NILU: 117056 NILU: 115027 Frontiers in Toxicology. 2024, 6, 1298231. https://hdl.handle.net/11250/3136128 https://doi.org/10.3389/ftox.2024.1298231 cristin:2274965 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2024 Arriola, Al Saify, Warner, Herzke, Harju, Amundsen, Evenset, Möckel and Krogseth. |
op_doi |
https://doi.org/10.3389/ftox.2024.1298231 |
container_title |
Frontiers in Toxicology |
container_volume |
6 |
_version_ |
1810466377853566976 |