Metal contaminant fluxes across the sediment water interfaceVisa övriga samt affilieringar
2016 (Engelska)Ingår i: Marine Pollution Bulletin, ISSN 0025-326X, E-ISSN 1879-3363, Vol. 111, nr 1-2, s. 321-329Artikel i tidskrift (Refereegranskat) Published
Abstract [en]
To date, most estimates of contaminant fluxes across the sediment/water interface in risk assessments have been done using diffusive flux models. However, the reliability of these is limited as the overall flux from the sediment may have contributions caused by advection and bioturbation. We found through a comparison of modelled fluxes versus measured fluxes, that the methods Benthic Flux Chamber and surface leaching tests in a risk assessment context showed similar magnitude while calculated fluxes deviated at least by a factor of 100 from measured fluxes. This may be explained by the flux contribution in connection with bioturbation. The chamber- measured fluxes of copper were low compared to those of zinc and cobalt, but this is consistent with leaching tests that indicated copper to be more strongly bound. Risk assessments based on total concentrations may be misleading.
Ort, förlag, år, upplaga, sidor
2016. Vol. 111, nr 1-2, s. 321-329
Nyckelord [en]
Sediment, Contamination, Pollution, Copper, Zinc, Cobolt, Metal, Diffusion, Bioturbation, Seepage, Benthic flux chamber, Risk assessment, Sweden, English
Nationell ämneskategori
Geoteknik Geovetenskap och miljövetenskap
Identifikatorer
URN: urn:nbn:se:swedgeo:diva-776DOI: 10.1016/j.marpolbul.2016.06.092OAI: oai:DiVA.org:swedgeo-776DiVA, id: diva2:1339430
2019-07-292019-07-292019-07-29