Equilibrium partitioning of PCB congeners in the water column: Field measurements from the Hudson River

Butcher, Jonathan B.; Garvey, Edward A.; Bierman, Victor J.

doi:10.1016/s0045-6535(98)00015-0

Cited by 32 publications

(30 citation statements)

References 16 publications

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“…4b). These results are consistent with those of Butcher et al (1998), which suggests that less than 10% of PCBs containing three or more chlorines are sorbed to colloids in the Hudson River (USA) under normal conditions (4.79 mg/L DOC and 1.40 mg/L POC). These values conflict with the findings of Baker et al (2002) and Totten et al (2001), who have suggested that at commonly encountered DOC and SPM concentrations, substantial fractions of moderately hydrophobic compounds were sorbed to the colloidal phase.…”

Section: The Effect Of Doc and Bcsupporting

confidence: 89%

The factors controlling the partitioning of polybrominated diphenyl ethers and polychlorinated biphenyls in the water-column of the Pearl River Estuary in South China

Chen

Luo

et al. 2011

Marine Pollution Bulletin

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Section: The Effect Of Doc and Bcsupporting

confidence: 89%

The factors controlling the partitioning of polybrominated diphenyl ethers and polychlorinated biphenyls in the water-column of the Pearl River Estuary in South China

Chen

Luo

et al. 2011

Marine Pollution Bulletin

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“…The data of Jonker and Smedes [24] and Butcher et al [26] are presented separately for ortho‐ and non– ortho ‐PCB congeners (Fig. 1).…”

Section: Data Evaluationmentioning

confidence: 99%

“…Filled bars = planar compounds; open bars = nonplanar compounds. ( A ) Jonker and Smedes [24]; ( B ) Butcher et al [26]; ( C ) Ö. Gustafsson, personal communication; ( D ) Ten Hulscher et al [32]. CB = polychlorinated benzenes.…”

Section: Data Evaluationmentioning

confidence: 99%

Ubiquitous observations of enhanced solid affinities for aromatic organochlorines in field situations: Are in situ dissolved exposures overestimated by existing partitioning models?

Bucheli

Gustafsson

2001

Enviro Toxic and Chemistry

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This paper investigates the ability of the traditional organic matter partitioning (OMP) model to predict the solid-water distribution, and hence the dissolved exposures, of hydrophobic organic compounds (HOCs) in real field situations. Observed organic-carbon-normalized partitioning coefficients (Koc)obs) of polychlorinated biphenyls, polychlorinated benzenes, polychlorinated dibenzo-dioxins and -furans, and p,p'-dichlorodiphenyltrichlorethane (DDT) with metabolites were selected from the literature and compared with their respective OMP model estimates. For all compound classes and in a majority of the investigated cases, (Koc)obs values were significantly larger than predicted. This translated into factors of overestimated dissolved exposures ranging from 1 to 1,000. Various reasons are discussed for the discrepancies between predictions and actual observations, such as the effect of the diagenetic state and other properties of the particulate organic matter. The greater enhancement in (Koc)obs of planar over nonplanar compounds suggests in certain cases that efficient interactions with aromatic soot phases may be significant. For an improved predictability of (Koc)obs and dissolved exposures of HOCs in the real environment, the inclusion of soot and possibly other distinct subfractions of bulk organic carbon into an extended solid-water partitioning model may be considered.

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“…This distribution is represented as the organic carbon-normalized partition coefficient, K oc , and is a measure of the compound’s hydrophobicity, roughly equal to its octanol–water partition coefficient, K ow (Robinson et al, 2008; ten Hulscher et al, 2005). Field-derived values for K oc have been found to vary widely from those determined in the laboratory (Butcher et al, 1998; Gobas and Maclean, 2003; Pickard et al, 2001; ten Hulscher et al, 2005). These variations may be due to changes in sediment composition (Cornelissen et al, 2005; Delle Site, 2001).…”

Section: Introductionmentioning

confidence: 92%

Spatial and temporal variations of persistent organic pollutants impacted by episodic sediment resuspension in southern Lake Michigan

Miller

Hornbuckle

2010

Journal of Great Lakes Research

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The impacts of large-scale, episodic sediment resuspension on the cycling of polychlorinated biphenyl congeners (PCBs) were examined using a spatially coordinated air and water sampling strategy conducted in southern Lake Michigan in the late winters of 1998, 1999, and 2000. We found no significant temporal changes in gas phase, dissolved phase, or suspended sediment PCB concentrations despite large-scale seasonal storms occurring before and after sampling campaigns. Only gas phase and suspended sediment PCBs varied spatially. Higher total suspended material (TSM) concentrations and fraction organic carbon (foc) were measured at sampling stations located in the near-shore region of southern Lake Michigan than at open-water sampling stations. Gas phase concentrations (ΣPCBg) were higher in the west (0.436 ± 0.200 ng/m3, n = 11) and south (0.408 ± 0.286 ng/m3, n = 5) than the east (0.214 ± 0.082 ng/m3, n = 10) and central (0.253 ± 0.145 ng/m3, n = 8) regions of southern Lake Michigan. Dissolved phase concentrations (ΣPCBd) averaged 0.18 ± 0.024 ng/L (n = 52); suspended sediment concentrations (ΣPCBs) accounted for between 4% and 72% (23 ± 4%, n = 52) of the total ΣPCB concentrations (ΣPCBT = ΣPCBd + ΣPCBs). Despite no consistent temporal variations in both dissolved phase or suspended sediment ΣPCB concentrations, there were temporal and spatial variations in the distribution shift between phases that can be linked to sediment resuspension, not a state of equilibrium. Specifically, our analysis suggests sediment resuspension results in preferential sorption of heavier, more chlorinated PCB congeners.

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Equilibrium partitioning of PCB congeners in the water column: Field measurements from the Hudson River

Cited by 32 publications

References 16 publications

The factors controlling the partitioning of polybrominated diphenyl ethers and polychlorinated biphenyls in the water-column of the Pearl River Estuary in South China

The factors controlling the partitioning of polybrominated diphenyl ethers and polychlorinated biphenyls in the water-column of the Pearl River Estuary in South China

Ubiquitous observations of enhanced solid affinities for aromatic organochlorines in field situations: Are in situ dissolved exposures overestimated by existing partitioning models?

Spatial and temporal variations of persistent organic pollutants impacted by episodic sediment resuspension in southern Lake Michigan

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