Partitioning of persistent hydrophobic contaminants to different storage lipid classes
Lipids generally represent the major matrix contributing to the absorptive capacity for hydrophobic organic contaminants in aquatic ecosystems. The aim of the present study was to determine whether contaminants partition to a different degree to the different storage lipid classes: wax ester (WE) an...
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Online Access: | https://hdl.handle.net/11250/2673477 https://doi.org/10.1016/j.chemosphere.2020.127890 |
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ftnorskinstvf:oai:niva.brage.unit.no:11250/2673477 2023-05-15T14:57:42+02:00 Partitioning of persistent hydrophobic contaminants to different storage lipid classes Ruus, Anders Allan, Ian Bæk, Kine Borgå, Katrine 2021 application/pdf https://hdl.handle.net/11250/2673477 https://doi.org/10.1016/j.chemosphere.2020.127890 eng eng Elsevier Norges forskningsråd: 234388 Chemosphere. 2021, 263, 127890. urn:issn:0045-6535 https://hdl.handle.net/11250/2673477 https://doi.org/10.1016/j.chemosphere.2020.127890 cristin:1824399 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY 7 263 Chemosphere Peer reviewed Journal article 2021 ftnorskinstvf https://doi.org/10.1016/j.chemosphere.2020.127890 2023-02-21T08:46:26Z Lipids generally represent the major matrix contributing to the absorptive capacity for hydrophobic organic contaminants in aquatic ecosystems. The aim of the present study was to determine whether contaminants partition to a different degree to the different storage lipid classes: wax ester (WE) and triacylglycerol (TAG). This was undertaken by studying experimentally the partitioning of organochlorine compounds between lipids (WE or TAG) and silicone rubber phase. Our results indicate that hydrophobic compounds have a slightly higher affinity for WE than for TAG. The findings thus corroborate earlier suggestions that contaminants accumulate to a greater extent in food webs with a higher reliance of on WE, such as in the Arctic. This knowledge is of interest since it implies that possible changes in planktonic community species composition, and thereby possible changes in the lipid composition, may have consequences for accumulation of hydrophobic contaminants in apex predators. However, the magnitude of these consequences remains unknown, and there may well be other factors of importance for previously observed higher accumulation of contaminants in Arctic systems. Thus, we have here identified aspects regarding partitioning of contaminants to lipids that need further scrutiny, and there is a need for further quantitative estimates of the suggested difference in absorptive capacities for hydrophobic contaminants between WE and TAG. publishedVersion Article in Journal/Newspaper Arctic Norwegian Institute for Water research: NIVA Open Access Archive (Brage) Arctic Chemosphere 263 127890 |
institution |
Open Polar |
collection |
Norwegian Institute for Water research: NIVA Open Access Archive (Brage) |
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ftnorskinstvf |
language |
English |
description |
Lipids generally represent the major matrix contributing to the absorptive capacity for hydrophobic organic contaminants in aquatic ecosystems. The aim of the present study was to determine whether contaminants partition to a different degree to the different storage lipid classes: wax ester (WE) and triacylglycerol (TAG). This was undertaken by studying experimentally the partitioning of organochlorine compounds between lipids (WE or TAG) and silicone rubber phase. Our results indicate that hydrophobic compounds have a slightly higher affinity for WE than for TAG. The findings thus corroborate earlier suggestions that contaminants accumulate to a greater extent in food webs with a higher reliance of on WE, such as in the Arctic. This knowledge is of interest since it implies that possible changes in planktonic community species composition, and thereby possible changes in the lipid composition, may have consequences for accumulation of hydrophobic contaminants in apex predators. However, the magnitude of these consequences remains unknown, and there may well be other factors of importance for previously observed higher accumulation of contaminants in Arctic systems. Thus, we have here identified aspects regarding partitioning of contaminants to lipids that need further scrutiny, and there is a need for further quantitative estimates of the suggested difference in absorptive capacities for hydrophobic contaminants between WE and TAG. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Ruus, Anders Allan, Ian Bæk, Kine Borgå, Katrine |
spellingShingle |
Ruus, Anders Allan, Ian Bæk, Kine Borgå, Katrine Partitioning of persistent hydrophobic contaminants to different storage lipid classes |
author_facet |
Ruus, Anders Allan, Ian Bæk, Kine Borgå, Katrine |
author_sort |
Ruus, Anders |
title |
Partitioning of persistent hydrophobic contaminants to different storage lipid classes |
title_short |
Partitioning of persistent hydrophobic contaminants to different storage lipid classes |
title_full |
Partitioning of persistent hydrophobic contaminants to different storage lipid classes |
title_fullStr |
Partitioning of persistent hydrophobic contaminants to different storage lipid classes |
title_full_unstemmed |
Partitioning of persistent hydrophobic contaminants to different storage lipid classes |
title_sort |
partitioning of persistent hydrophobic contaminants to different storage lipid classes |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2673477 https://doi.org/10.1016/j.chemosphere.2020.127890 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
7 263 Chemosphere |
op_relation |
Norges forskningsråd: 234388 Chemosphere. 2021, 263, 127890. urn:issn:0045-6535 https://hdl.handle.net/11250/2673477 https://doi.org/10.1016/j.chemosphere.2020.127890 cristin:1824399 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.chemosphere.2020.127890 |
container_title |
Chemosphere |
container_volume |
263 |
container_start_page |
127890 |
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1766329824507330560 |