Ecological Risk Assessment of Trace Metal in Pacific Sector of Arctic Ocean and Bering Strait Surface Sediments
The arctic region is a remote area with relatively few anthropogenic inputs, but there is increasing concern over toxic trace metal contamination in the Arctic Ocean. In this study, distribution characteristics of eight trace metals in the surface sediment of the Pacific Sector of the Arctic Ocean a...
Published in: | International Journal of Environmental Research and Public Health |
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Online Access: | http://hdl.handle.net/1807/111039 https://doi.org/10.3390/ijerph19084454 |
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ftunivtoronto:oai:tspace.library.utoronto.ca:1807/111039 2023-05-15T14:48:14+02:00 Ecological Risk Assessment of Trace Metal in Pacific Sector of Arctic Ocean and Bering Strait Surface Sediments Wang, Juan Gough, William A. Yan, Jing Lu, Zhibo 2022-04-07 application/pdf http://hdl.handle.net/1807/111039 https://doi.org/10.3390/ijerph19084454 unknown University of Toronto International Journal of Environmental Research and Public Health 19 (8): 4454 (2022) http://hdl.handle.net/1807/111039 doi:10.3390/ijerph19084454 Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY Article 2022 ftunivtoronto https://doi.org/10.3390/ijerph19084454 2022-04-17T17:24:56Z The arctic region is a remote area with relatively few anthropogenic inputs, but there is increasing concern over toxic trace metal contamination in the Arctic Ocean. In this study, distribution characteristics of eight trace metals in the surface sediment of the Pacific Sector of the Arctic Ocean and Bering Strait are analyzed. The geochemical baseline value of each metal element is explored using the relative cumulative frequency curve method; the enrichment factor ( EF ), geo-accumulation index ( I geo ) and potential ecological risk index ( RI ) are applied to assess the ecological risk level of the trace metals. According to the results, Cu, As and Hg had a little more content variation, and their contents in some areas were significantly higher than the previous reports. EF values show an obvious enrichment of element As, followed by Cr element with the moderate enrichment; the enrichment of the other six elements are not related to human activity. The I geo value shows a moderately contaminated to heavily contaminated level of As and a moderately contaminated level of Cr. According to the potential ecological risk indexes in each site, most sites are at a low ecological risk level except five sites with RI/baseline values exceeding 150 which are at a moderate ecological risk level. Article in Journal/Newspaper Arctic Arctic Ocean Bering Strait University of Toronto: Research Repository T-Space Arctic Arctic Ocean Bering Strait Pacific International Journal of Environmental Research and Public Health 19 8 4454 |
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Open Polar |
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University of Toronto: Research Repository T-Space |
op_collection_id |
ftunivtoronto |
language |
unknown |
description |
The arctic region is a remote area with relatively few anthropogenic inputs, but there is increasing concern over toxic trace metal contamination in the Arctic Ocean. In this study, distribution characteristics of eight trace metals in the surface sediment of the Pacific Sector of the Arctic Ocean and Bering Strait are analyzed. The geochemical baseline value of each metal element is explored using the relative cumulative frequency curve method; the enrichment factor ( EF ), geo-accumulation index ( I geo ) and potential ecological risk index ( RI ) are applied to assess the ecological risk level of the trace metals. According to the results, Cu, As and Hg had a little more content variation, and their contents in some areas were significantly higher than the previous reports. EF values show an obvious enrichment of element As, followed by Cr element with the moderate enrichment; the enrichment of the other six elements are not related to human activity. The I geo value shows a moderately contaminated to heavily contaminated level of As and a moderately contaminated level of Cr. According to the potential ecological risk indexes in each site, most sites are at a low ecological risk level except five sites with RI/baseline values exceeding 150 which are at a moderate ecological risk level. |
format |
Article in Journal/Newspaper |
author |
Wang, Juan Gough, William A. Yan, Jing Lu, Zhibo |
spellingShingle |
Wang, Juan Gough, William A. Yan, Jing Lu, Zhibo Ecological Risk Assessment of Trace Metal in Pacific Sector of Arctic Ocean and Bering Strait Surface Sediments |
author_facet |
Wang, Juan Gough, William A. Yan, Jing Lu, Zhibo |
author_sort |
Wang, Juan |
title |
Ecological Risk Assessment of Trace Metal in Pacific Sector of Arctic Ocean and Bering Strait Surface Sediments |
title_short |
Ecological Risk Assessment of Trace Metal in Pacific Sector of Arctic Ocean and Bering Strait Surface Sediments |
title_full |
Ecological Risk Assessment of Trace Metal in Pacific Sector of Arctic Ocean and Bering Strait Surface Sediments |
title_fullStr |
Ecological Risk Assessment of Trace Metal in Pacific Sector of Arctic Ocean and Bering Strait Surface Sediments |
title_full_unstemmed |
Ecological Risk Assessment of Trace Metal in Pacific Sector of Arctic Ocean and Bering Strait Surface Sediments |
title_sort |
ecological risk assessment of trace metal in pacific sector of arctic ocean and bering strait surface sediments |
publisher |
University of Toronto |
publishDate |
2022 |
url |
http://hdl.handle.net/1807/111039 https://doi.org/10.3390/ijerph19084454 |
geographic |
Arctic Arctic Ocean Bering Strait Pacific |
geographic_facet |
Arctic Arctic Ocean Bering Strait Pacific |
genre |
Arctic Arctic Ocean Bering Strait |
genre_facet |
Arctic Arctic Ocean Bering Strait |
op_relation |
International Journal of Environmental Research and Public Health 19 (8): 4454 (2022) http://hdl.handle.net/1807/111039 doi:10.3390/ijerph19084454 |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3390/ijerph19084454 |
container_title |
International Journal of Environmental Research and Public Health |
container_volume |
19 |
container_issue |
8 |
container_start_page |
4454 |
_version_ |
1766319327027396608 |