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Less metal fluxes than expected from fibrous marine sediments
Swedish Geotechnical Institute, SE-211 22 Malmö, Sweden.
Department of Marine Sciences, University of Gothenburg, Box 461, SE-405 30 Gothenburg, Sweden.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Naturresurser och hållbar utveckling. Geological Survey of Sweden, Department of marine environment & planning, Box 670, SE-751 28 Uppsala, Sweden.ORCID-id: 0000-0001-6444-3968
Department of Marine Sciences, University of Gothenburg, Box 461, SE-405 30 Gothenburg, Sweden.
Vise andre og tillknytning
2020 (engelsk)Inngår i: Marine Pollution Bulletin, ISSN 0025-326X, E-ISSN 1879-3363, Vol. 150, artikkel-id 110750Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Deposits of fibrous sediment, which include fiberbanks and fiber-rich sediments, are known to exist on the Swedish seafloor adjacent to coastally located former pulp and paper industries. These deposits contain concentrations of hazardous substances that exceed national background levels and contravene national environmental quality objectives (EQOs). In this study of metal fluxes from fibrous sediments using benthic flux chamber measurements (BFC) in situ we obtained detected fluxes of Co, Mo, Ni and Zn, but no fluxes of Pb, Hg and Cr. The absence of fluxes of some of the analyzed metals indicates particle bound transport of Pb, Cr and Hg from fiberbanks even though Hg might become methylated under anoxic conditions and, in that case, may enter the food chain. We found less metal fluxes than expected and thus emphasize the importance of in-situ flux measurements as a compliment to sediment metal concentrations within risk assessments of contaminated sediments.

sted, utgiver, år, opplag, sider
2020. Vol. 150, artikkel-id 110750
HSV kategori
Forskningsprogram
Naturresurser och hållbar utveckling
Identifikatorer
URN: urn:nbn:se:uu:diva-400468DOI: 10.1016/j.marpolbul.2019.110750OAI: oai:DiVA.org:uu-400468DiVA, id: diva2:1381372
Forskningsfinansiär
Swedish Research Council Formas, 214-2014-63Tilgjengelig fra: 2019-12-20 Laget: 2019-12-20 Sist oppdatert: 2020-01-13bibliografisk kontrollert

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