Contaminated sediment as a source of PCBs in a river system
(1990) In Canadian Journal of Fisheries and Aquatic Sciences 47(4). p.746-754- Abstract
- The transport of PCBs (Aroclor 1242) in a river system in southern Sweden was governed by outflow from sediment in a 26-ha contaminated lake. Experiments in the lake revealed that 14 g PCBs/d escaped from the sediment, while sedimentation was 3 g PCB/d. Volatilization of PCBs from the lake surface was 0.02 g/d, which was considerably higher than the atmospheric fallout . The majority of the sediment-desorbed compounds (80%) remained at the river mouth, 60 km downstream, and entered the Baltic Sea. Desorption increased the ratio of tetrachlorobiphenyls to pentachlorobiphenyls in the water. Transport across the water/air interface was higher for trichlorobiphenyls, while atmospheric deposition was dominated by penta- and hexachlorobiphenyls.... (More)
- The transport of PCBs (Aroclor 1242) in a river system in southern Sweden was governed by outflow from sediment in a 26-ha contaminated lake. Experiments in the lake revealed that 14 g PCBs/d escaped from the sediment, while sedimentation was 3 g PCB/d. Volatilization of PCBs from the lake surface was 0.02 g/d, which was considerably higher than the atmospheric fallout . The majority of the sediment-desorbed compounds (80%) remained at the river mouth, 60 km downstream, and entered the Baltic Sea. Desorption increased the ratio of tetrachlorobiphenyls to pentachlorobiphenyls in the water. Transport across the water/air interface was higher for trichlorobiphenyls, while atmospheric deposition was dominated by penta- and hexachlorobiphenyls. Therefore, the sediment of the lake acted as a source of PCBs entering the river system as well as the atmosphere. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8164223
- author
- Larsson, Per LU ; Okla, Lennart LU ; Ryding, S.-O. and Westöö, B.
- organization
- publishing date
- 1990
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Canadian Journal of Fisheries and Aquatic Sciences
- volume
- 47
- issue
- 4
- pages
- 746 - 754
- publisher
- Canadian Science Publishing, NRC Research Press
- external identifiers
-
- scopus:0025232043
- ISSN
- 1205-7533
- DOI
- 10.1139/f90-085
- language
- English
- LU publication?
- yes
- id
- b2754c5d-4433-48d0-8019-86bcf6fb9c9d (old id 8164223)
- date added to LUP
- 2016-04-01 12:11:07
- date last changed
- 2021-01-03 06:05:06
@article{b2754c5d-4433-48d0-8019-86bcf6fb9c9d, abstract = {{The transport of PCBs (Aroclor 1242) in a river system in southern Sweden was governed by outflow from sediment in a 26-ha contaminated lake. Experiments in the lake revealed that 14 g PCBs/d escaped from the sediment, while sedimentation was 3 g PCB/d. Volatilization of PCBs from the lake surface was 0.02 g/d, which was considerably higher than the atmospheric fallout . The majority of the sediment-desorbed compounds (80%) remained at the river mouth, 60 km downstream, and entered the Baltic Sea. Desorption increased the ratio of tetrachlorobiphenyls to pentachlorobiphenyls in the water. Transport across the water/air interface was higher for trichlorobiphenyls, while atmospheric deposition was dominated by penta- and hexachlorobiphenyls. Therefore, the sediment of the lake acted as a source of PCBs entering the river system as well as the atmosphere.}}, author = {{Larsson, Per and Okla, Lennart and Ryding, S.-O. and Westöö, B.}}, issn = {{1205-7533}}, language = {{eng}}, number = {{4}}, pages = {{746--754}}, publisher = {{Canadian Science Publishing, NRC Research Press}}, series = {{Canadian Journal of Fisheries and Aquatic Sciences}}, title = {{Contaminated sediment as a source of PCBs in a river system}}, url = {{http://dx.doi.org/10.1139/f90-085}}, doi = {{10.1139/f90-085}}, volume = {{47}}, year = {{1990}}, }