Additive models reveal sources of metals and organic pollutants in Norwegian marine sediments
We characterized spatial patterns of surface sediment concentrations of seven polychlorinated biphenyls (PCBs), seven polycyclic aromatic hydrocarbons (PAHs), three chlorinated pesticides, and five metals in Norwegian waters and Skagerrak. In total, we analyzed 5036 concentrations of 22 chemical sub...
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ftunivgent:oai:archive.ugent.be:8566894 2023-06-11T04:09:13+02:00 Additive models reveal sources of metals and organic pollutants in Norwegian marine sediments Everaert, Gert Ruus, Anders Hjermann, Dag Øystein Borgå, Katrine Green, Norman Boitsov, Stepan Jensen, Henning Poste, Amanda 2017 application/pdf https://biblio.ugent.be/publication/8566894 http://hdl.handle.net/1854/LU-8566894 https://doi.org/10.1021/acs.est.7b02964 https://biblio.ugent.be/publication/8566894/file/8566896 eng eng https://biblio.ugent.be/publication/8566894 http://hdl.handle.net/1854/LU-8566894 http://dx.doi.org/10.1021/acs.est.7b02964 https://biblio.ugent.be/publication/8566894/file/8566896 No license (in copyright) info:eu-repo/semantics/openAccess ENVIRONMENTAL SCIENCE & TECHNOLOGY ISSN: 0013-936X ISSN: 1520-5851 Earth and Environmental Sciences POLYCYCLIC AROMATIC-HYDROCARBONS SORFJORD WESTERN NORWAY PCB-CONCENTRATIONS HEAVY-METALS POLYCHLORINATED-BIPHENYLS ATMOSPHERIC DEPOSITION MYTILUS-EDULIS BERGEN HARBOR ARCTIC-OCEAN FIELD DATA journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftunivgent https://doi.org/10.1021/acs.est.7b02964 2023-05-10T22:41:35Z We characterized spatial patterns of surface sediment concentrations of seven polychlorinated biphenyls (PCBs), seven polycyclic aromatic hydrocarbons (PAHs), three chlorinated pesticides, and five metals in Norwegian waters and Skagerrak. In total, we analyzed 5036 concentrations of 22 chemical substances that were measured between 1986 and 2014 at 333 sampling sites by means of generalized additive models (GAMs). We found that GAMs with organic carbon content of the sediment and latitude and longitude as co-variates explained as ca. 75% of the variability of the contaminant sediment concentrations. For metals, a predominantly hotspot-driven spatial pattern was found, i.e., we identified historical pollution hotspots (e.g., Sørfjord in western Norway) for mercury, zinc, cadmium, and lead. Highest concentrations of PAHs and PCBs were found close to densely populated and industrialized regions, i.e., in the North Sea and in the Kattegat and Skagerrak. The spatial pattern of the PCBs suggests the secondary and diffuse atmospheric nature of their sources. Atmospheric inputs are the main sources of pollution for most organic chemicals considered, but north of the Arctic circle, we found that concentrations of PAHs increased from south to north most likely related to a combination of coal-eroding bedrock and the biological pump. The knowledge acquired in the present research is essential for developing effective remediation strategies that are consistent with international conventions on pollution control. Article in Journal/Newspaper Arctic Arctic Ocean Ghent University Academic Bibliography Arctic Arctic Ocean Bergen Kattegat ENVELOPE(9.692,9.692,63.563,63.563) Norway Environmental Science & Technology 51 21 12764 12773 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences POLYCYCLIC AROMATIC-HYDROCARBONS SORFJORD WESTERN NORWAY PCB-CONCENTRATIONS HEAVY-METALS POLYCHLORINATED-BIPHENYLS ATMOSPHERIC DEPOSITION MYTILUS-EDULIS BERGEN HARBOR ARCTIC-OCEAN FIELD DATA |
spellingShingle |
Earth and Environmental Sciences POLYCYCLIC AROMATIC-HYDROCARBONS SORFJORD WESTERN NORWAY PCB-CONCENTRATIONS HEAVY-METALS POLYCHLORINATED-BIPHENYLS ATMOSPHERIC DEPOSITION MYTILUS-EDULIS BERGEN HARBOR ARCTIC-OCEAN FIELD DATA Everaert, Gert Ruus, Anders Hjermann, Dag Øystein Borgå, Katrine Green, Norman Boitsov, Stepan Jensen, Henning Poste, Amanda Additive models reveal sources of metals and organic pollutants in Norwegian marine sediments |
topic_facet |
Earth and Environmental Sciences POLYCYCLIC AROMATIC-HYDROCARBONS SORFJORD WESTERN NORWAY PCB-CONCENTRATIONS HEAVY-METALS POLYCHLORINATED-BIPHENYLS ATMOSPHERIC DEPOSITION MYTILUS-EDULIS BERGEN HARBOR ARCTIC-OCEAN FIELD DATA |
description |
We characterized spatial patterns of surface sediment concentrations of seven polychlorinated biphenyls (PCBs), seven polycyclic aromatic hydrocarbons (PAHs), three chlorinated pesticides, and five metals in Norwegian waters and Skagerrak. In total, we analyzed 5036 concentrations of 22 chemical substances that were measured between 1986 and 2014 at 333 sampling sites by means of generalized additive models (GAMs). We found that GAMs with organic carbon content of the sediment and latitude and longitude as co-variates explained as ca. 75% of the variability of the contaminant sediment concentrations. For metals, a predominantly hotspot-driven spatial pattern was found, i.e., we identified historical pollution hotspots (e.g., Sørfjord in western Norway) for mercury, zinc, cadmium, and lead. Highest concentrations of PAHs and PCBs were found close to densely populated and industrialized regions, i.e., in the North Sea and in the Kattegat and Skagerrak. The spatial pattern of the PCBs suggests the secondary and diffuse atmospheric nature of their sources. Atmospheric inputs are the main sources of pollution for most organic chemicals considered, but north of the Arctic circle, we found that concentrations of PAHs increased from south to north most likely related to a combination of coal-eroding bedrock and the biological pump. The knowledge acquired in the present research is essential for developing effective remediation strategies that are consistent with international conventions on pollution control. |
format |
Article in Journal/Newspaper |
author |
Everaert, Gert Ruus, Anders Hjermann, Dag Øystein Borgå, Katrine Green, Norman Boitsov, Stepan Jensen, Henning Poste, Amanda |
author_facet |
Everaert, Gert Ruus, Anders Hjermann, Dag Øystein Borgå, Katrine Green, Norman Boitsov, Stepan Jensen, Henning Poste, Amanda |
author_sort |
Everaert, Gert |
title |
Additive models reveal sources of metals and organic pollutants in Norwegian marine sediments |
title_short |
Additive models reveal sources of metals and organic pollutants in Norwegian marine sediments |
title_full |
Additive models reveal sources of metals and organic pollutants in Norwegian marine sediments |
title_fullStr |
Additive models reveal sources of metals and organic pollutants in Norwegian marine sediments |
title_full_unstemmed |
Additive models reveal sources of metals and organic pollutants in Norwegian marine sediments |
title_sort |
additive models reveal sources of metals and organic pollutants in norwegian marine sediments |
publishDate |
2017 |
url |
https://biblio.ugent.be/publication/8566894 http://hdl.handle.net/1854/LU-8566894 https://doi.org/10.1021/acs.est.7b02964 https://biblio.ugent.be/publication/8566894/file/8566896 |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) |
geographic |
Arctic Arctic Ocean Bergen Kattegat Norway |
geographic_facet |
Arctic Arctic Ocean Bergen Kattegat Norway |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_source |
ENVIRONMENTAL SCIENCE & TECHNOLOGY ISSN: 0013-936X ISSN: 1520-5851 |
op_relation |
https://biblio.ugent.be/publication/8566894 http://hdl.handle.net/1854/LU-8566894 http://dx.doi.org/10.1021/acs.est.7b02964 https://biblio.ugent.be/publication/8566894/file/8566896 |
op_rights |
No license (in copyright) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1021/acs.est.7b02964 |
container_title |
Environmental Science & Technology |
container_volume |
51 |
container_issue |
21 |
container_start_page |
12764 |
op_container_end_page |
12773 |
_version_ |
1768382981765857280 |