Sediment pore water distribution coefficients of PCB congeners in enriched black carbon sediment

Andres Martinez; Colin O'Sullivan; Danny Reible; Keri C Hornbuckle

doi:10.1016/j.envpol.2013.07.015

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Sediment pore water distribution coefficients of PCB congeners in enriched black carbon sediment

Journal article

Peer reviewed

Sediment pore water distribution coefficients of PCB congeners in enriched black carbon sediment

Andres Martinez, Colin O'Sullivan, Danny Reible and Keri C Hornbuckle

Environmental Pollution, Vol.182, pp.357-363

11/2013

DOI: 10.1016/j.envpol.2013.07.015

PMCID: PMC3833079

PMID: 23974165

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http://doi.org/10.1016/j.envpol.2013.07.015View

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Abstract

More than 2300 sediment pore water distribution coefficients (KPCBi ds) of 93 polychlorinated biphenyls (PCBs) were measured and modeled from sediments from Indiana Harbor and Ship Canal. KPCBi ds were calculated from previously reported bulk sediment values and newly analyzed pore water. PCBs in pore waters were measured using SPME PDMS-fiber and ∑PCB ranged from 41 to 1500 ng L−1. The resulting KPCBi ds were ∼1 log unit lower in comparison to other reported values. A simple model for the KPCBi d consisted of the product of the organic carbon fraction and the octanol–water partition coefficient and provided an excellent prediction for the measured values, with a mean square error of 0.09 ± 0.06. Although black carbon content is very high in these sediments and was expected to play an important role in the distribution of PCBs, no improvement was obtained when a two-carbon model was used. •PCB sediment-pore water distribution coefficients were measured and modeled.•Distribution coefficients were lower in comparison to other reported values.•Organic carbon fraction times the KOW yielded the best prediction model.•The incorporation of black carbon into a model did not improve the results. The organic carbon fraction times the octanol–water partition coefficient yielded the best prediction model for the sediment pore water distribution coefficient of PCBs.

PCBs

Organic carbon

Sediment pore water distribution coefficients

Black carbon

Aliphatic compounds

Details

Title: Subtitle: Sediment pore water distribution coefficients of PCB congeners in enriched black carbon sediment
Creators: Andres Martinez - Department of Civil & Environmental Engineering, IIHR-Hydroscience and Engineering, The University of Iowa, 4105 Seamans Center, Iowa City, IA 52242, USA
Colin O'Sullivan - Department of Civil & Environmental Engineering, IIHR-Hydroscience and Engineering, The University of Iowa, 4105 Seamans Center, Iowa City, IA 52242, USA
Danny Reible - Department of Civil, Architectural, & Environmental Engineering, The University of Texas at Austin, 301 E. Dean Keeton St. Stop C1786, Austin, TX 78712-1173, USA
Keri C Hornbuckle - Department of Civil & Environmental Engineering, IIHR-Hydroscience and Engineering, The University of Iowa, 4105 Seamans Center, Iowa City, IA 52242, USA
Resource Type: Journal article
Publication Details: Environmental Pollution, Vol.182, pp.357-363
DOI: 10.1016/j.envpol.2013.07.015
PMID: 23974165
PMCID: PMC3833079
NLM abbreviation: Environ Pollut
ISSN: 0269-7491
eISSN: 1873-6424
Publisher: Elsevier Ltd
Grant note: name: Iowa Superfund Basic Research Program, award: P42ES013661; DOI: 10.13039/100000066, name: NIEHS
Language: English
Date published: 11/2013
Academic Unit: Civil and Environmental Engineering; Occupational and Environmental Health; IIHR--Hydroscience and Engineering
Record Identifier: 9983806369902771

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