Hexabromocyclododecanes in soils, plants, and sediments from Svalbard, Arctic: Levels, isomer profiles, chiral signatures, and potential sources.
This study investigated the occurrence, stereoisomeric behavior, and potential sources of hexabromocyclododecanes (HBCDs) in topsoil and terrestrial vegetation from Svalbard and ocean sediment samples from Kongsfjorden, an open fjord on the west coast of Spitsbergen. The mean levels of total concent...
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ftpubmed:38733783 2024-06-09T07:43:17+00:00 Hexabromocyclododecanes in soils, plants, and sediments from Svalbard, Arctic: Levels, isomer profiles, chiral signatures, and potential sources. Lin, Chenlu Li, Honghua Pei, Zhiguo Li, Yingming Yang, Ruiqiang Zhang, Qinghua Jiang, Guibin 2024 May 03 https://doi.org/10.1016/j.jhazmat.2024.134512 https://pubmed.ncbi.nlm.nih.gov/38733783 eng eng Elsevier Science https://doi.org/10.1016/j.jhazmat.2024.134512 https://pubmed.ncbi.nlm.nih.gov/38733783 Copyright © 2024 Elsevier B.V. All rights reserved. J Hazard Mater ISSN:1873-3336 Volume:472 Arctic HBCDs Sediments Soils Vegetation Journal Article 2024 ftpubmed https://doi.org/10.1016/j.jhazmat.2024.134512 2024-05-12T16:03:00Z This study investigated the occurrence, stereoisomeric behavior, and potential sources of hexabromocyclododecanes (HBCDs) in topsoil and terrestrial vegetation from Svalbard and ocean sediment samples from Kongsfjorden, an open fjord on the west coast of Spitsbergen. The mean levels of total concentrations (Σ3HBCDs) were comparable to those in other remote regions and were lower than those in source regions. Elevated proportions of α-HBCD with an average of 41% in the terrestrial samples and 25% in ocean sediments compared to those in commercial products (10-13% for α-HBCD) were observed, implying isomerization from γ- to α-HBCD in the Arctic environment. In addition, the extensive deviations of enantiomeric fractions (EFs) from the racemic values reflected the effect of biotransformation on HBCD accumulation. Linear correlation analysis, redundancy analysis, and back-trajectory were combined to infer possible HBCD sources, and the results showed the important role of global production and long-range environmental transport (LRET) for the entry of HBCDs into the Arctic at an early stage. To the best of our knowledge, this study represents the first report on the diastereoisomer- and enantiomer-specific profiles of HBCDs in the Arctic terrestrial environment and sheds light on the transport pathways and environmental fate for more effective risk management related to HBCDs in remote regions. Article in Journal/Newspaper Arctic Kongsfjord* Kongsfjorden Svalbard Spitsbergen PubMed Central (PMC) Arctic Svalbard Journal of Hazardous Materials 472 134512 |
institution |
Open Polar |
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PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Arctic HBCDs Sediments Soils Vegetation |
spellingShingle |
Arctic HBCDs Sediments Soils Vegetation Lin, Chenlu Li, Honghua Pei, Zhiguo Li, Yingming Yang, Ruiqiang Zhang, Qinghua Jiang, Guibin Hexabromocyclododecanes in soils, plants, and sediments from Svalbard, Arctic: Levels, isomer profiles, chiral signatures, and potential sources. |
topic_facet |
Arctic HBCDs Sediments Soils Vegetation |
description |
This study investigated the occurrence, stereoisomeric behavior, and potential sources of hexabromocyclododecanes (HBCDs) in topsoil and terrestrial vegetation from Svalbard and ocean sediment samples from Kongsfjorden, an open fjord on the west coast of Spitsbergen. The mean levels of total concentrations (Σ3HBCDs) were comparable to those in other remote regions and were lower than those in source regions. Elevated proportions of α-HBCD with an average of 41% in the terrestrial samples and 25% in ocean sediments compared to those in commercial products (10-13% for α-HBCD) were observed, implying isomerization from γ- to α-HBCD in the Arctic environment. In addition, the extensive deviations of enantiomeric fractions (EFs) from the racemic values reflected the effect of biotransformation on HBCD accumulation. Linear correlation analysis, redundancy analysis, and back-trajectory were combined to infer possible HBCD sources, and the results showed the important role of global production and long-range environmental transport (LRET) for the entry of HBCDs into the Arctic at an early stage. To the best of our knowledge, this study represents the first report on the diastereoisomer- and enantiomer-specific profiles of HBCDs in the Arctic terrestrial environment and sheds light on the transport pathways and environmental fate for more effective risk management related to HBCDs in remote regions. |
format |
Article in Journal/Newspaper |
author |
Lin, Chenlu Li, Honghua Pei, Zhiguo Li, Yingming Yang, Ruiqiang Zhang, Qinghua Jiang, Guibin |
author_facet |
Lin, Chenlu Li, Honghua Pei, Zhiguo Li, Yingming Yang, Ruiqiang Zhang, Qinghua Jiang, Guibin |
author_sort |
Lin, Chenlu |
title |
Hexabromocyclododecanes in soils, plants, and sediments from Svalbard, Arctic: Levels, isomer profiles, chiral signatures, and potential sources. |
title_short |
Hexabromocyclododecanes in soils, plants, and sediments from Svalbard, Arctic: Levels, isomer profiles, chiral signatures, and potential sources. |
title_full |
Hexabromocyclododecanes in soils, plants, and sediments from Svalbard, Arctic: Levels, isomer profiles, chiral signatures, and potential sources. |
title_fullStr |
Hexabromocyclododecanes in soils, plants, and sediments from Svalbard, Arctic: Levels, isomer profiles, chiral signatures, and potential sources. |
title_full_unstemmed |
Hexabromocyclododecanes in soils, plants, and sediments from Svalbard, Arctic: Levels, isomer profiles, chiral signatures, and potential sources. |
title_sort |
hexabromocyclododecanes in soils, plants, and sediments from svalbard, arctic: levels, isomer profiles, chiral signatures, and potential sources. |
publisher |
Elsevier Science |
publishDate |
2024 |
url |
https://doi.org/10.1016/j.jhazmat.2024.134512 https://pubmed.ncbi.nlm.nih.gov/38733783 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Kongsfjord* Kongsfjorden Svalbard Spitsbergen |
genre_facet |
Arctic Kongsfjord* Kongsfjorden Svalbard Spitsbergen |
op_source |
J Hazard Mater ISSN:1873-3336 Volume:472 |
op_relation |
https://doi.org/10.1016/j.jhazmat.2024.134512 https://pubmed.ncbi.nlm.nih.gov/38733783 |
op_rights |
Copyright © 2024 Elsevier B.V. All rights reserved. |
op_doi |
https://doi.org/10.1016/j.jhazmat.2024.134512 |
container_title |
Journal of Hazardous Materials |
container_volume |
472 |
container_start_page |
134512 |
_version_ |
1801372045109362688 |