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Benthic foraminifera as bio-indicators of chemical and physical stressors in Hammerfest harbor (Northern Norway).

https://arctichealth.org/en/permalink/ahliterature282623
Source
Mar Pollut Bull. 2017 Jan 15;114(1):384-396
Publication Type
Article
Date
Jan-15-2017
Author
Noortje Dijkstra
Juho Junttila
Kari Skirbekk
JoLynn Carroll
Katrine Husum
Morten Hald
Source
Mar Pollut Bull. 2017 Jan 15;114(1):384-396
Date
Jan-15-2017
Language
English
Publication Type
Article
Keywords
Biodiversity
Environmental Monitoring - methods
Estuaries
Foraminifera - classification - drug effects
Geologic Sediments - chemistry
Metals, Heavy - analysis
Norway
Water Pollutants, Chemical - analysis
Abstract
We investigated benthic foraminiferal assemblages in contaminated sediments in a subarctic harbor of Northern Norway to assess their utility as indicators of anthropogenic impacts. Sediments in the harbor are repositories for POPs and heavy metals supplied through discharges from industry and shipping activities. Sediment contaminant concentrations are at moderate to poor ecological quality status (EcoQS) levels. The EcoQS based on benthic foraminiferal diversity reflects a similar trend to the EcoQS based on contaminant concentrations. Foraminiferal density and diversity is low throughout the harbor with distinct assemblages reflecting influence of physical disturbances or chemical stressors. Assemblages impacted by physical disturbance are dominated by L. lobatula and E. excavatum, while assemblages impacted by chemical stressors are dominated by opportunistic species S. fusiformis, S. biformis, B. spathulata and E. excavatum. The foraminiferal assemblage from an un-impacted nearby fjord consists mainly of agglutinated taxa. These assemblages provides a valuable baseline of the ecological impacts of industrialization in northern coastal communities.
PubMed ID
27697319 View in PubMed
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Environmental baselines and reconstruction of Atlantic Water inflow in Bjørnøyrenna, SW Barents Sea, since 1800 CE.

https://arctichealth.org/en/permalink/ahliterature287107
Source
Mar Environ Res. 2017 Dec;132:117-131
Publication Type
Article
Date
Dec-2017
Author
Noortje Dijkstra
Juho Junttila
Steffen Aagaard-Sørensen
Source
Mar Environ Res. 2017 Dec;132:117-131
Date
Dec-2017
Language
English
Publication Type
Article
Abstract
Metal concentrations, sediment properties and benthic foraminiferal assemblages were investigated in sediment cores in the SW Barents Sea, to reconstruct environmental baselines and natural variability of Atlantic Water inflow since 1800 CE. Metal concentrations correspond to no effect levels and do not influence the foraminifera. Increased Hg and Pb was linked to inflow of Atlantic Water. The data set is considered to reflect the pre-impacted environmental baseline and range in natural variability of the study area. The foraminiferal assemblages in the SW part of the study area showed warming and presence of Atlantic Water towards 1900 CE. The NE part of the region indicate presence of cold Artic Water influenced conditions. Between 1900 and 1980 CE, the SW region indicates reduced inflow of Atlantic Water. From 1980 CE towards the present the assemblages of the entire study area show warming of Atlantic Water and northward retreat of the Arctic Front.
PubMed ID
29129397 View in PubMed
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Identifying past petroleum exploration related drill cutting releases and influences on the marine environment and benthic foraminiferal communities, Goliat Field, SW Barents Sea, Norway.

https://arctichealth.org/en/permalink/ahliterature286634
Source
Mar Pollut Bull. 2017 Oct 24;
Publication Type
Article
Date
Oct-24-2017
Author
Steffen Aagaard-Sørensen
Juho Junttila
Noortje Dijkstra
Source
Mar Pollut Bull. 2017 Oct 24;
Date
Oct-24-2017
Language
English
Publication Type
Article
Abstract
The present multiproxy investigation of marine sediment cores aims at: 1) Identifying dispersion of petroleum exploration related drill cutting releases within the Goliat Field, Barents Sea in 2006/07 and 2) Assessing past and present influence of drill cuttings on the marine environment. The cores were recovered 5, 30, 60, 125 and 250m from the drill site in the eastward downstream direction. Downstream dispersion of drill cuttings is evaluated by examining sediment grain size distribution and barium (Ba), heavy metal, total organic carbon and sulphur concentrations. Dispersion of drill cuttings was limited to
PubMed ID
29074252 View in PubMed
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Identifying past petroleum exploration related drill cutting releases and influences on the marine environment and benthic foraminiferal communities, Goliat Field, SW Barents Sea, Norway.

https://arctichealth.org/en/permalink/ahliterature294569
Source
Mar Pollut Bull. 2018 Apr; 129(2):592-608
Publication Type
Journal Article
Date
Apr-2018
Author
Steffen Aagaard-Sørensen
Juho Junttila
Noortje Dijkstra
Author Affiliation
Department of Geosciences, UiT The Arctic University of Norway in Tromsø, Postboks 6050 Langnes, N-9037 Tromsø, Norway. Electronic address: steffen.sorensen@uit.no.
Source
Mar Pollut Bull. 2018 Apr; 129(2):592-608
Date
Apr-2018
Language
English
Publication Type
Journal Article
Keywords
Environmental Monitoring - methods
Foraminifera - drug effects
Geologic Sediments - chemistry
Metals, Heavy - analysis - toxicity
Norway
Oceans and Seas
Oil and Gas Fields
Petroleum - analysis - toxicity
Seawater - chemistry
Water Pollutants, Chemical - analysis - toxicity
Abstract
The present multiproxy investigation of marine sediment cores aims at: 1) Identifying dispersion of petroleum exploration related drill cutting releases within the Goliat Field, Barents Sea in 2006/07 and 2) Assessing past and present influence of drill cuttings on the marine environment. The cores were recovered 5, 30, 60, 125 and 250m from the drill site in the eastward downstream direction. Downstream dispersion of drill cuttings is evaluated by examining sediment grain size distribution and barium (Ba), heavy metal, total organic carbon and sulphur concentrations. Dispersion of drill cuttings was limited to
PubMed ID
29074252 View in PubMed
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The impact of submarine copper mine tailing disposal from the 1970s on Repparfjorden, northern Norway.

https://arctichealth.org/en/permalink/ahliterature287804
Source
Mar Pollut Bull. 2017 Jul 15;120(1-2):136-153
Publication Type
Article
Date
Jul-15-2017
Author
Beata Sternal
Juho Junttila
Kari Skirbekk
Matthias Forwick
JoLynn Carroll
Kristine Bondo Pedersen
Source
Mar Pollut Bull. 2017 Jul 15;120(1-2):136-153
Date
Jul-15-2017
Language
English
Publication Type
Article
Keywords
Copper
Environmental monitoring
Estuaries
Geologic sediments
Metals
Mining
Norway
Abstract
We investigate the state of sedimentological environment and contaminant status of Repparfjorden (N Norway) impacted by submarine disposal of mine tailings during the 1970s using sedimentological and geochemical properties of seventeen sediment cores. The impact of tailings disposal is mainly restricted to the inner fjord where the discharge occurred. Sediment cores retrieved from the inner fjord contain layers of mine tailings up to 9-cm thick, 3-9cm below the seafloor. Spreading of the tailing-related metal Cu and particles is limited to the inner fjord and to a 2cm layer in one core from the outer fjord. Two interrelated factors, fjord morphology and sedimentation rate, controlled the distribution of contaminant-laden tailings in the fjord. The mobility of Cu from buried contaminated sediments to the sediment-water interface in the inner fjord indicates that benthic communities have been continuously exposed to elevated Cu concentrations for nearly four decades.
PubMed ID
28502452 View in PubMed
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The influence of Magnafloc10 on the acidic, alkaline, and electrodialytic desorption of metals from mine tailings.

https://arctichealth.org/en/permalink/ahliterature295836
Source
J Environ Manage. 2018 Oct 15; 224:130-139
Publication Type
Journal Article
Date
Oct-15-2018
Author
Kristine B Pedersen
Helena C Reinardy
Pernille E Jensen
Lisbeth M Ottosen
Juho Junttila
Marianne Frantzen
Author Affiliation
Akvaplan-niva AS, Fram Centre - High North Research Centre for Climate and the Environment, Hjalmar Johansens Gate 14, 9007, Tromsø, Norway. Electronic address: kristine.pedersen@akvaplan.niva.no.
Source
J Environ Manage. 2018 Oct 15; 224:130-139
Date
Oct-15-2018
Language
English
Publication Type
Journal Article
Keywords
Copper - chemistry - isolation & purification
Estuaries
Industrial Waste
Metals
Mining
Norway
Water Pollutants, Chemical - chemistry - isolation & purification
Water Purification
Abstract
Repparfjorden in northern Norway has been partly designated for submarine mine tailings disposal when the adjacent Cu mine re-opens in 2019. In order to increase sedimentation, the flocculant, Magnafloc10 is planned to be added to the mine tailings prior to discharge into the fjord. This study investigated the feasibility of reducing the Cu concentrations (375?mg/kg) in the mine tailings by applying electrodialytic extraction, including potential optimisation by adding Magnafloc10. In the acidic electrodialytic treatment (pH??12), Magnafloc10 reduced the extraction of Cu from 17% to 0.7%, due to the flocs remaining in the tailing slurries. The electric energy consumption per extracted Cu was similar in the acidic and alkaline electrodialytic treatments without the addition of Magnafloc10. In the alkaline electrodialytic treatment, the extraction of other metals was low (
PubMed ID
30036807 View in PubMed
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Long-term dispersion and availability of metals from submarine mine tailing disposal in a fjord in Arctic Norway.

https://arctichealth.org/en/permalink/ahliterature282905
Source
Environ Sci Pollut Res Int. 2017 May 27;
Publication Type
Article
Date
May-27-2017
Author
Kristine B Pedersen
Pernille E Jensen
Beata Sternal
Lisbeth M Ottosen
Mie Vesterskov Henning
Manja Marie Kudahl
Juho Junttila
Kari Skirbekk
Marianne Frantzen
Source
Environ Sci Pollut Res Int. 2017 May 27;
Date
May-27-2017
Language
English
Publication Type
Article
Abstract
Mining of Cu took place in Kvalsund in the Arctic part of Norway in the 1970s, and mine tailings were discharged to the inner part of the fjord, Repparfjorden. Metal speciation analysis was used to assess the historical dispersion of metals as well as their potential bioavailability from the area of the mine tailing disposal. It was revealed that the dispersion of Ba, Cr, Ni, Pb and Zn from the mine tailings has been limited. Dispersion of Cu to the outer fjord has, however, occurred; the amounts released and dispersed from the mine tailing disposal area quantified to be 2.5-10 t, less than 5% of Cu in the original mine tailings. An estimated 80-390 t of Cu still remains in the disposal area from the surface to a depth of 16 cm. Metal partitioning showed that 56-95% of the Cu is bound in the potential bioavailable fractions (exchangeable, reducible and oxidisable) of the sediments, totalling approximately 70-340 t, with potential for continuous release to the pore water and re-precipitation in over- and underlying sediments. Surface sediments in the deposit area were affected by elevated Cu concentrations just above the probable effect level according to the Norwegian sediment quality criteria, with 50-80% Cu bound in the exchangeable, reducible and oxidisable fractions, potentially available for release to the water column and/or for uptake in benthic organisms.
PubMed ID
28550634 View in PubMed
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Long-term dispersion and availability of metals from submarine mine tailing disposal in a fjord in Arctic Norway.

https://arctichealth.org/en/permalink/ahliterature297765
Source
Environ Sci Pollut Res Int. 2018 Nov; 25(33):32901-32912
Publication Type
Journal Article
Date
Nov-2018
Author
Kristine B Pedersen
Pernille E Jensen
Beata Sternal
Lisbeth M Ottosen
Mie Vesterskov Henning
Manja Marie Kudahl
Juho Junttila
Kari Skirbekk
Marianne Frantzen
Author Affiliation
Akvaplan-niva AS, Fram Centre-High North Research Centre for Climate and the Environment, Hjalmar Johansens gate 14, 9007, Tromsø, Norway. kristine.pedersen@akvaplan.niva.no.
Source
Environ Sci Pollut Res Int. 2018 Nov; 25(33):32901-32912
Date
Nov-2018
Language
English
Publication Type
Journal Article
Keywords
Biological Availability
Copper - analysis - pharmacokinetics
Environmental monitoring
Estuaries
Geologic Sediments - analysis
Metals - analysis - pharmacokinetics
Mining
Norway
Water Pollutants, Chemical - analysis
Abstract
Mining of Cu took place in Kvalsund in the Arctic part of Norway in the 1970s, and mine tailings were discharged to the inner part of the fjord, Repparfjorden. Metal speciation analysis was used to assess the historical dispersion of metals as well as their potential bioavailability from the area of the mine tailing disposal. It was revealed that the dispersion of Ba, Cr, Ni, Pb and Zn from the mine tailings has been limited. Dispersion of Cu to the outer fjord has, however, occurred; the amounts released and dispersed from the mine tailing disposal area quantified to be 2.5-10 t, less than 5% of Cu in the original mine tailings. An estimated 80-390 t of Cu still remains in the disposal area from the surface to a depth of 16 cm. Metal partitioning showed that 56-95% of the Cu is bound in the potential bioavailable fractions (exchangeable, reducible and oxidisable) of the sediments, totalling approximately 70-340 t, with potential for continuous release to the pore water and re-precipitation in over- and underlying sediments. Surface sediments in the deposit area were affected by elevated Cu concentrations just above the probable effect level according to the Norwegian sediment quality criteria, with 50-80% Cu bound in the exchangeable, reducible and oxidisable fractions, potentially available for release to the water column and/or for uptake in benthic organisms.
PubMed ID
28550634 View in PubMed
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Spreading of drill cuttings and sediment recovery of three exploration wells of different ages, SW Barents Sea, Norway.

https://arctichealth.org/en/permalink/ahliterature295358
Source
Mar Pollut Bull. 2018 Oct; 135:224-238
Publication Type
Journal Article
Date
Oct-2018
Author
Juho Junttila
Noortje Dijkstra
Steffen Aagaard-Sørensen
Author Affiliation
Department of Geosciences, UiT The Arctic University of Norway in Tromsø, Postboks 6050 Langnes, N-9037 Tromsø, Norway. Electronic address: juho.junttila@uit.no.
Source
Mar Pollut Bull. 2018 Oct; 135:224-238
Date
Oct-2018
Language
English
Publication Type
Journal Article
Abstract
Five stations (=250?m from the well heads) from three exploration wells of different ages from the SW Barents Sea were studied to investigate the spreading of drill cuttings and sediment quality. Two of the wells were drilled before the restriction of use of oil-based drilling fluids (1993). Elevated concentrations of Ba were found in sediments near all the wells with the highest concentrations at =60?m from the well head. The thickness of drill cutting layers was between >20?cm (well head) and 2?cm (250?m from the well head). The sediment quality varied from very bad (oldest well) to background (normal) (newer wells). Regulations led to better sediment quality. Metal concentrations from the oldest well suggested that the top 4?cm of the core represents sediment recovery. However, Ba concentrations of the top sediment layer at all the stations of the three wells indicate no physical recovery.
PubMed ID
30301034 View in PubMed
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Spreading of drill cuttings and sediment recovery of three exploration wells of different ages, SW Barents Sea, Norway.

https://arctichealth.org/en/permalink/ahliterature296823
Source
Mar Pollut Bull. 2018 Oct; 135:224-238
Publication Type
Journal Article
Date
Oct-2018
Author
Juho Junttila
Noortje Dijkstra
Steffen Aagaard-Sørensen
Author Affiliation
Department of Geosciences, UiT The Arctic University of Norway in Tromsø, Postboks 6050 Langnes, N-9037 Tromsø, Norway. Electronic address: juho.junttila@uit.no.
Source
Mar Pollut Bull. 2018 Oct; 135:224-238
Date
Oct-2018
Language
English
Publication Type
Journal Article
Keywords
Barium - analysis
Environment
Environmental monitoring
Geologic Sediments - analysis - chemistry
Metals - analysis
Norway
Oceans and Seas
Oil and Gas Fields
Water Pollutants, Chemical - analysis
Abstract
Five stations (=250?m from the well heads) from three exploration wells of different ages from the SW Barents Sea were studied to investigate the spreading of drill cuttings and sediment quality. Two of the wells were drilled before the restriction of use of oil-based drilling fluids (1993). Elevated concentrations of Ba were found in sediments near all the wells with the highest concentrations at =60?m from the well head. The thickness of drill cutting layers was between >20?cm (well head) and 2?cm (250?m from the well head). The sediment quality varied from very bad (oldest well) to background (normal) (newer wells). Regulations led to better sediment quality. Metal concentrations from the oldest well suggested that the top 4?cm of the core represents sediment recovery. However, Ba concentrations of the top sediment layer at all the stations of the three wells indicate no physical recovery.
PubMed ID
30301034 View in PubMed
Less detail

10 records – page 1 of 1.