1
|
Pedersen KB, Jensen PE, Sternal B, Ottosen LM, Henning MV, Kudahl MM, Junttila J, Skirbekk K, Frantzen M. Long-term dispersion and availability of metals from submarine mine tailing disposal in a fjord in Arctic Norway. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:32901-32912. [PMID: 28550634 DOI: 10.1007/s11356-017-9276-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 05/16/2017] [Indexed: 06/07/2023]
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.
Collapse
Affiliation(s)
- Kristine B Pedersen
- Akvaplan-niva AS, Fram Centre-High North Research Centre for Climate and the Environment, Hjalmar Johansens gate 14, 9007, Tromsø, Norway.
| | - Pernille E Jensen
- Arctic Technology Centre, Department of Civil Engineering, Technical University of Denmark, Building 118, 2800, Lyngby, Denmark
| | - Beata Sternal
- Department of Geosciences, UiT the Arctic University of Norway in Tromsø, Dramsveien 201, 9037, Tromsø, Norway
- Institute of Geology, Adam Mickiewicz University in Poznań, Bogumiła Krygowskiego 12, 61-680, Poznań, Poland
| | - Lisbeth M Ottosen
- Arctic Technology Centre, Department of Civil Engineering, Technical University of Denmark, Building 118, 2800, Lyngby, Denmark
| | - Mie Vesterskov Henning
- Arctic Technology Centre, Department of Civil Engineering, Technical University of Denmark, Building 118, 2800, Lyngby, Denmark
| | - Manja Marie Kudahl
- Arctic Technology Centre, Department of Civil Engineering, Technical University of Denmark, Building 118, 2800, Lyngby, Denmark
| | - Juho Junttila
- Department of Geosciences, UiT the Arctic University of Norway in Tromsø, Dramsveien 201, 9037, Tromsø, Norway
| | - Kari Skirbekk
- Department of Geosciences, UiT the Arctic University of Norway in Tromsø, Dramsveien 201, 9037, Tromsø, Norway
| | - Marianne Frantzen
- Akvaplan-niva AS, Fram Centre-High North Research Centre for Climate and the Environment, Hjalmar Johansens gate 14, 9007, Tromsø, Norway
| |
Collapse
|
2
|
Neira C, Vales M, Mendoza G, Hoh E, Levin LA. Polychlorinated biphenyls (PCBs) in recreational marina sediments of San Diego Bay, southern California. MARINE POLLUTION BULLETIN 2018; 126:204-214. [PMID: 29421090 DOI: 10.1016/j.marpolbul.2017.10.096] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/20/2017] [Accepted: 10/31/2017] [Indexed: 05/11/2023]
Abstract
Polychlorinated biphenyl (PCB) concentrations were determined in surface sediments from three recreational marinas in San Diego Bay, California. Total PCB concentrations ranged from 23 to 153, 31-294, and 151-1387ngg-1 for Shelter Island Yacht Basin (SIYB), Harbor Island West (HW) and Harbor Island East (HE), respectively. PCB concentrations were significantly higher in HE and PCB group composition differed relative to HW and SIYB, which were not significantly different from each other in concentration or group composition. In marina sediments there was a predominance (82-85%) of heavier molecular weight PCBs with homologous groups (6CL-7CL) comprising 59% of the total. In HE 75% of the sites exceeded the effect range median (ERM), and toxicity equivalence (TEQ dioxin-like PCBs) values were higher relative to those of HW and SIYB, suggesting a potential ecotoxicological risk.
Collapse
Affiliation(s)
- Carlos Neira
- Integrative Oceanography Division, Center for Marine Biodiversity and Conservation, Scripps Institution of Oceanography, La Jolla, CA, USA.
| | - Melissa Vales
- Graduate School of Public Health, San Diego State University, San Diego, CA, USA
| | - Guillermo Mendoza
- Integrative Oceanography Division, Center for Marine Biodiversity and Conservation, Scripps Institution of Oceanography, La Jolla, CA, USA
| | - Eunha Hoh
- Graduate School of Public Health, San Diego State University, San Diego, CA, USA
| | - Lisa A Levin
- Integrative Oceanography Division, Center for Marine Biodiversity and Conservation, Scripps Institution of Oceanography, La Jolla, CA, USA
| |
Collapse
|