Hydrodynamic Impacts on the Fate of Polychlorinated Biphenyl 153 in the Marine Environment
Due to their long half-life, polychlorinated biphenyls (PCBs) tend to contaminate not only coastal areas, but they travel over long distances, eventually reaching remote areas such the Arctic. The physical and biogeochemical features of every coastal area govern the main distribution patterns of fre...
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Online Access: | https://publications.hereon.de/id/51063 https://publications.hzg.de/id/51063 https://doi.org/10.3390/w14233952 |
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fthzgzmk:oai:publications.hereon.de:51063 2023-06-11T04:09:58+02:00 Hydrodynamic Impacts on the Fate of Polychlorinated Biphenyl 153 in the Marine Environment Mikheeva, E. Bieser, J. Schrum, C. 2022 https://publications.hereon.de/id/51063 https://publications.hzg.de/id/51063 https://doi.org/10.3390/w14233952 en eng MDPI https://dx.doi.org/10.3390/w14233952 urn:issn:2073-4441 https://publications.hereon.de/id/51063 https://publications.hzg.de/id/51063 info:eu-repo/semantics/openAccess open_access oa_gold issn:2073-4441 Mikheeva, E.; Bieser, J.; Schrum, C.: Hydrodynamic Impacts on the Fate of Polychlorinated Biphenyl 153 in the Marine Environment. In: Water. Vol. 14 (2022) 23, 3952. (DOI: /10.3390/w14233952) info:eu-repo/semantics/article Zeitschrift Artikel 2022 fthzgzmk https://doi.org/10.3390/w14233952 2023-05-28T23:25:36Z Due to their long half-life, polychlorinated biphenyls (PCBs) tend to contaminate not only coastal areas, but they travel over long distances, eventually reaching remote areas such the Arctic. The physical and biogeochemical features of every coastal area govern the main distribution patterns of freshly introduced PCBs into the marine system. Some of these processes are determined by chemical properties of the individual PCB congener. Thus, atmospheric influx along with ad/absorption on non-living organic material, photolytical and biological degradation processes vary from one PCB congener to another. For a detailed fate analysis of individual congeners, we developed a new chemical model, based on the GOTM-ECOSMO-FABM model framework. Here, we exemplarily present results for PCB153 based on 1D simulations of four regions in the North-Baltic Sea. The study area is characterized by different hydrodynamic and biogeochemical conditions. We investigate the impact of resuspension, mixing and the biological pump, sea ice and tides on the final phasal distribution of PCB153. Different combinations of these factors lead to the development of different areas of PCB153 accumulation, with the formation of hotspot areas, and influence the total uptake and concentration of PCB153 in the water column. As a result, two major dynamics determine the fate of PCB153 in the coastal ocean: (i) Primary production leads to PCB153 being adsorbed by organic material. Partitioning to organic material and sedimentation of organic particles removes dissolved PCB153 from the surface ocean and increases atmospheric influx. (ii) Tidal-induced resuspension and mixing control the benthic–pelagic exchange of PCB153 and its distribution in the water column. Depending on the resuspension regime and stratification, sediments can become a permanent (Gotland Deep, the Baltic Sea) or seasonal sink for PCB153. In regions with seasonal stratification and high near bottom turbulence (Northern North Sea), resuspension events can lead to pronounced peaks ... Article in Journal/Newspaper Arctic Sea ice Hereon Publications (Helmholtz-Zentrum) Arctic Water 14 23 3952 |
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Open Polar |
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Hereon Publications (Helmholtz-Zentrum) |
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fthzgzmk |
language |
English |
description |
Due to their long half-life, polychlorinated biphenyls (PCBs) tend to contaminate not only coastal areas, but they travel over long distances, eventually reaching remote areas such the Arctic. The physical and biogeochemical features of every coastal area govern the main distribution patterns of freshly introduced PCBs into the marine system. Some of these processes are determined by chemical properties of the individual PCB congener. Thus, atmospheric influx along with ad/absorption on non-living organic material, photolytical and biological degradation processes vary from one PCB congener to another. For a detailed fate analysis of individual congeners, we developed a new chemical model, based on the GOTM-ECOSMO-FABM model framework. Here, we exemplarily present results for PCB153 based on 1D simulations of four regions in the North-Baltic Sea. The study area is characterized by different hydrodynamic and biogeochemical conditions. We investigate the impact of resuspension, mixing and the biological pump, sea ice and tides on the final phasal distribution of PCB153. Different combinations of these factors lead to the development of different areas of PCB153 accumulation, with the formation of hotspot areas, and influence the total uptake and concentration of PCB153 in the water column. As a result, two major dynamics determine the fate of PCB153 in the coastal ocean: (i) Primary production leads to PCB153 being adsorbed by organic material. Partitioning to organic material and sedimentation of organic particles removes dissolved PCB153 from the surface ocean and increases atmospheric influx. (ii) Tidal-induced resuspension and mixing control the benthic–pelagic exchange of PCB153 and its distribution in the water column. Depending on the resuspension regime and stratification, sediments can become a permanent (Gotland Deep, the Baltic Sea) or seasonal sink for PCB153. In regions with seasonal stratification and high near bottom turbulence (Northern North Sea), resuspension events can lead to pronounced peaks ... |
format |
Article in Journal/Newspaper |
author |
Mikheeva, E. Bieser, J. Schrum, C. |
spellingShingle |
Mikheeva, E. Bieser, J. Schrum, C. Hydrodynamic Impacts on the Fate of Polychlorinated Biphenyl 153 in the Marine Environment |
author_facet |
Mikheeva, E. Bieser, J. Schrum, C. |
author_sort |
Mikheeva, E. |
title |
Hydrodynamic Impacts on the Fate of Polychlorinated Biphenyl 153 in the Marine Environment |
title_short |
Hydrodynamic Impacts on the Fate of Polychlorinated Biphenyl 153 in the Marine Environment |
title_full |
Hydrodynamic Impacts on the Fate of Polychlorinated Biphenyl 153 in the Marine Environment |
title_fullStr |
Hydrodynamic Impacts on the Fate of Polychlorinated Biphenyl 153 in the Marine Environment |
title_full_unstemmed |
Hydrodynamic Impacts on the Fate of Polychlorinated Biphenyl 153 in the Marine Environment |
title_sort |
hydrodynamic impacts on the fate of polychlorinated biphenyl 153 in the marine environment |
publisher |
MDPI |
publishDate |
2022 |
url |
https://publications.hereon.de/id/51063 https://publications.hzg.de/id/51063 https://doi.org/10.3390/w14233952 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
issn:2073-4441 Mikheeva, E.; Bieser, J.; Schrum, C.: Hydrodynamic Impacts on the Fate of Polychlorinated Biphenyl 153 in the Marine Environment. In: Water. Vol. 14 (2022) 23, 3952. (DOI: /10.3390/w14233952) |
op_relation |
https://dx.doi.org/10.3390/w14233952 urn:issn:2073-4441 https://publications.hereon.de/id/51063 https://publications.hzg.de/id/51063 |
op_rights |
info:eu-repo/semantics/openAccess open_access oa_gold |
op_doi |
https://doi.org/10.3390/w14233952 |
container_title |
Water |
container_volume |
14 |
container_issue |
23 |
container_start_page |
3952 |
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1768384007988314112 |