Biodegradation of weathered crude oil in seawater with frazil ice
As ice extent in the Arctic is declining, oil and gas activities will increase, with higher risk of oil spills to the marine environment. To determine biotransformation of dispersed weathered oil in newly formed ice, oil dispersions (2–3 ppm) were incubated in a mixture of natural seawater and frazi...
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Online Access: | https://hdl.handle.net/11250/2654560 https://doi.org/10.1016/j.marpolbul.2020.111090 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2654560 2023-05-15T15:05:17+02:00 Biodegradation of weathered crude oil in seawater with frazil ice Lofthus, Synnøve Bakke, Ingrid Tremblay, Julien Greer, Charles Brakstad, Odd Gunnar 2020 application/pdf https://hdl.handle.net/11250/2654560 https://doi.org/10.1016/j.marpolbul.2020.111090 eng eng Elsevier urn:issn:0025-326X https://hdl.handle.net/11250/2654560 https://doi.org/10.1016/j.marpolbul.2020.111090 cristin:1805607 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY 154 Marine Pollution Bulletin Peer reviewed Journal article 2020 ftntnutrondheimi https://doi.org/10.1016/j.marpolbul.2020.111090 2020-05-20T22:32:38Z As ice extent in the Arctic is declining, oil and gas activities will increase, with higher risk of oil spills to the marine environment. To determine biotransformation of dispersed weathered oil in newly formed ice, oil dispersions (2–3 ppm) were incubated in a mixture of natural seawater and frazil ice for 125 days at −2 °C. Dispersed oil in seawater without frazil ice were included in the experimental setup. Presence or absence of frazil ice was a strong driver for microbial community structures and affected the rate of oil degradation. n-alkanes were degraded faster in the presence of frazil ice, the opposite was the case for naphthalenes and 2–3 ring PAHs. No degradation of 4–6 ring PAHs was observed in any of the treatments. The total petroleum oil was not degraded to any significant degree, suggesting that oil will freeze into the ice matrix and persist throughout the icy season. publishedVersion © 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Article in Journal/Newspaper Arctic NTNU Open Archive (Norwegian University of Science and Technology) Arctic Marine Pollution Bulletin 154 111090 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
As ice extent in the Arctic is declining, oil and gas activities will increase, with higher risk of oil spills to the marine environment. To determine biotransformation of dispersed weathered oil in newly formed ice, oil dispersions (2–3 ppm) were incubated in a mixture of natural seawater and frazil ice for 125 days at −2 °C. Dispersed oil in seawater without frazil ice were included in the experimental setup. Presence or absence of frazil ice was a strong driver for microbial community structures and affected the rate of oil degradation. n-alkanes were degraded faster in the presence of frazil ice, the opposite was the case for naphthalenes and 2–3 ring PAHs. No degradation of 4–6 ring PAHs was observed in any of the treatments. The total petroleum oil was not degraded to any significant degree, suggesting that oil will freeze into the ice matrix and persist throughout the icy season. publishedVersion © 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
format |
Article in Journal/Newspaper |
author |
Lofthus, Synnøve Bakke, Ingrid Tremblay, Julien Greer, Charles Brakstad, Odd Gunnar |
spellingShingle |
Lofthus, Synnøve Bakke, Ingrid Tremblay, Julien Greer, Charles Brakstad, Odd Gunnar Biodegradation of weathered crude oil in seawater with frazil ice |
author_facet |
Lofthus, Synnøve Bakke, Ingrid Tremblay, Julien Greer, Charles Brakstad, Odd Gunnar |
author_sort |
Lofthus, Synnøve |
title |
Biodegradation of weathered crude oil in seawater with frazil ice |
title_short |
Biodegradation of weathered crude oil in seawater with frazil ice |
title_full |
Biodegradation of weathered crude oil in seawater with frazil ice |
title_fullStr |
Biodegradation of weathered crude oil in seawater with frazil ice |
title_full_unstemmed |
Biodegradation of weathered crude oil in seawater with frazil ice |
title_sort |
biodegradation of weathered crude oil in seawater with frazil ice |
publisher |
Elsevier |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2654560 https://doi.org/10.1016/j.marpolbul.2020.111090 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
154 Marine Pollution Bulletin |
op_relation |
urn:issn:0025-326X https://hdl.handle.net/11250/2654560 https://doi.org/10.1016/j.marpolbul.2020.111090 cristin:1805607 |
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.marpolbul.2020.111090 |
container_title |
Marine Pollution Bulletin |
container_volume |
154 |
container_start_page |
111090 |
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1766337009301848064 |