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Transport of 14C-labelled PCB compounds from sediment to water and air in laboratory model systems
Lunds Universitet.ORCID iD: 0000-0003-0344-1939
1983 (English)In: Water research, Vol. 17, no 10, p. 1317-1326Article in journal (Refereed) Published
Abstract [en]

Tetra-, hexa- and octachlorobiphenyls were added to aquatic model systems composed of undisturbed sediment cores with an overlying water phase. Using impactor plates transport of the compounds from sediment to air was observed. About one per cent of the sediment-bound PCBs recovered in the systems left the water by jet drops from bursting bubbles. The transport of PCBs from the sediment to the air was nearly constant over time, with a transport rate of 0.62 μg · dm−2 week−1 for tetrachlorobiphenyl. Tetrachlorobiphenyl was mobile in systems with and without macroinvertebrates and in those fixed with HgCl2. Hexa- and octachlorobiphenyls were transported from sediment to water mainly by bioturbation processes. The two latter substances had a higher adsorption to particles than tetrachlorobiphenyl. Compared to tetrachlorobiphenyl, more hexa- and octachlorobiphenyls accumulated in chironomids and tubificids. 

Place, publisher, year, edition, pages
1983. Vol. 17, no 10, p. 1317-1326
National Category
Ecology
Research subject
Natural Science, Aquatic Ecology
Identifiers
URN: urn:nbn:se:lnu:diva-1272DOI: 10.1016/0043-1354(83)90258-0OAI: oai:DiVA.org:lnu-1272DiVA, id: diva2:308143
Available from: 2010-04-06 Created: 2010-04-06 Last updated: 2016-11-09Bibliographically approved

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Larsson, Per

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