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

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

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

Civil Environ Construct Engineering

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

More than 2300 sediment pore water distribution coefficients (K _{PCBi ds}) of 93 polychlorinated biphenyls (PCBs) were measured and modeled from sediments from Indiana Harbor and Ship Canal. K_{PCBi 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 ΣPCB ranged from 41 to 1500 ng L^-1. The resulting K _{PCBi ds} were ∼1 log unit lower in comparison to other reported values. A simple model for the K_{PCBi 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.

Original language	English
Pages (from-to)	357-363
Number of pages	7
Journal	Environmental Pollution
Volume	182
DOIs	https://doi.org/10.1016/j.envpol.2013.07.015
State	Published - 2013

Keywords

Aliphatic compounds
Black carbon
Organic carbon
PCBs
Sediment pore water distribution coefficients

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title = "Sediment pore water distribution coefficients of PCB congeners in enriched black carbon sediment",

abstract = "More than 2300 sediment pore water distribution coefficients (K PCBi 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 ΣPCB ranged from 41 to 1500 ng L-1. The resulting K PCBi 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.",

keywords = "Aliphatic compounds, Black carbon, Organic carbon, PCBs, Sediment pore water distribution coefficients",

author = "Andres Martinez and Colin O'Sullivan and Danny Reible and Hornbuckle, {Keri C.}",

note = "Funding Information: This work was funded as part of the Iowa Superfund Basic Research Program , NIEHS Grant P42ES013661 . At the University of Iowa, we thank our former laboratory director Collin Just for his help in the laboratory. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIEHS or the NIH. We thank the anonymous reviewers that have significantly improved the quality of the paper. ",

year = "2013",

doi = "10.1016/j.envpol.2013.07.015",

language = "English",

volume = "182",

pages = "357--363",

journal = "Environmental Pollution",

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TY - JOUR

T1 - Sediment pore water distribution coefficients of PCB congeners in enriched black carbon sediment

AU - Martinez, Andres

AU - O'Sullivan, Colin

AU - Reible, Danny

AU - Hornbuckle, Keri C.

N1 - Funding Information: This work was funded as part of the Iowa Superfund Basic Research Program , NIEHS Grant P42ES013661 . At the University of Iowa, we thank our former laboratory director Collin Just for his help in the laboratory. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIEHS or the NIH. We thank the anonymous reviewers that have significantly improved the quality of the paper.

PY - 2013

Y1 - 2013

N2 - More than 2300 sediment pore water distribution coefficients (K PCBi 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 ΣPCB ranged from 41 to 1500 ng L-1. The resulting K PCBi 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.

AB - More than 2300 sediment pore water distribution coefficients (K PCBi 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 ΣPCB ranged from 41 to 1500 ng L-1. The resulting K PCBi 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.

KW - Aliphatic compounds

KW - Black carbon

KW - Organic carbon

KW - PCBs

KW - Sediment pore water distribution coefficients

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U2 - 10.1016/j.envpol.2013.07.015

DO - 10.1016/j.envpol.2013.07.015

M3 - Article

C2 - 23974165

AN - SCOPUS:84883179581

VL - 182

SP - 357

EP - 363

JO - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

ER -

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

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Keywords

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