Browse by author
Lookup NU author(s): Professor David WernerORCiD,
Professor Richard Luthy
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
Traditional and new relationships of polychlorinated biphenyl (PCB) distribution among the solid phases, the free aqueous phase, and biolipids are comprehensively reviewed using seven well-characterized freshwater and marine sediments polluted with PCBs. The traditional relationship relating free aqueous concentration and biolipid concentration to sedimenttotal organic carbon, compound octanol-water partitioning coefficient, and solid-phase contaminant concentration overestimates measured free aqueous concentrations and biolipid concentrations by mean factors of 8 and 33, respectively. By contrast relationships based on measured free aqueous phase concentrations or the PCB mass fraction desorbed from sediment provide reasonable predictions of biolipid concentrations. Solid-phase concentration-based predictions perform better when sorption to amorphous organic matter and black carbon (BC) is distinguished. Contrary to previously published relationships, BC sorption appears to be linear for free aqueous PCB-congener concentrations in the picogram to microgram per liter range.
Author(s): Werner D, Hale SE, Ghosh U, Luthy RG
Publication type: Article
Publication status: Published
Journal: Environmental Science & Technology
Print publication date: 01/04/2010
ISSN (print): 0013-936X
ISSN (electronic): 1520-5851
Publisher: American Chemical Society
Altmetrics provided by Altmetric