Principal components analysis of potential sources of polychlorinated dibenzop-dioxin and dibenzofuran residues in surficial sediments from Newark Bay, New Jersey

Wenning, Richard J.; Paustenbach, Dennis J.; Harris, Mark Anglin; Bedbury, Hadley

doi:10.1007/bf01128726

Cited by 44 publications

(20 citation statements)

References 82 publications

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“…We used the relative proportion of each congener with respect to the total concentration in each sample to represent the profiles rather than the absolute values of the congeners. This also minimizes bias due to large differences in concentrations between samples and congeners (Lake et al 1995;Rachdawong and Christensen 1997;Wenning et al 1993). We used the samples as variables and congener proportion as cases because we were interested in assessing communality in the samples (Rachdawong and Christensen 1997).…”

Section: Calculationsmentioning

confidence: 99%

Associations Between Dioxins/Furans and Dioxin-Like PCBs in Estuarine Sediment and Blue Crab

Liebens

Mohrherr

Karouna‐Renier

et al. 2011

Water Air Soil Pollut

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The objective of the present study was to evaluate the relationships between the quantity, toxicity, and compositional profile of dioxin/furan compounds (PCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs) in estuarine sediment and in the blue crab (Callinectes sapidus). Sediment and blue crab samples were collected in three small urban estuaries that are in relatively close proximity to each other. Results show that differences between PCDD/F and DL-PCB mass concentrations and total toxic equivalents (TEQ) toxicity in sediments of the three estuaries are reflected in those of the blue crab. TEQs are higher in the hepatopancreas of the crabs than in the sediment, but the concentration factor is inversely proportional to the TEQ in the sediments. Congener profiles in the crabs are systematically different from those in the sediments, and the difference is more pronounced for PCDD/Fs than for DL-PCBs, possibly due to differences in metabolization rates. Compared with sediment profiles, more lesser-chlorinated PCDD/Fs that have higher TEFs accumulate in crab hepatopancreas. This selective bioaccumulation of PCDD/Fs results in a TEQ augmentation in crab hepatopancreas compared with sediments. The bioaccumulation in the blue crab is also selective for PCDD/Fs over DL-PCBs.

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Section: Calculationsmentioning

confidence: 99%

Associations Between Dioxins/Furans and Dioxin-Like PCBs in Estuarine Sediment and Blue Crab

Liebens

Mohrherr

Karouna‐Renier

et al. 2011

Water Air Soil Pollut

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“…PCA is a powerful statistical technique widely used in this field (Wenning et al, 1993(Wenning et al, , 1994, for investigating large sets of data using the smallest number of variables while preserving the greatest amount of information.…”

Section: Introductionmentioning

confidence: 99%

Maldives: An archipelago that burns. A first survey of PCDD/Fs and DL-PCBs from human activities

Colombo

Bettinetti

Strona

et al. 2014

Science of The Total Environment

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“…The chemical characteristic that is most striking on this figure is the dominance of OCDD, which is greater than 70% of the sum the 17 variables. This OCDD dominance in PCP congener profiles has been noted by others and is the primary reason for studies that have concluded that that PCP profile is similar to other source patterns [20] [21] [22].…”

Section: Pcdd and Pcdf In Technical Pentachlorophenolmentioning

confidence: 99%

“…Previous studies have addressed the congener profiles of pentachlorophenol as compared to those from other sources [20] [21] [22], and have suggested that the Figure 1. Pentachlorophenol Molecule (left on both panels) and chemical reactions that lead to formation of octachlorodibenzo-p-dioxin (OCDD, upper panel) and octachlorodibenzofuran (OCDF, lower panel).…”

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confidence: 99%

Chlorinated Dioxin and Furan Congener Profiles from Pentachlorophenol Sources

Johnson¹

2017

JEP

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Pentachlorphenol (PCP) was widely used as a biocide and insecticide for wood preservation. Chlorinated dioxins and furans (2,3,7, were inadvertent byproducts of PCP production. As such, it is an important source of PCDD/F contamination in treated wood and in soil/ sediment near sites that produced or used PCP. It has been noted in the literature, that PCP congener profiles are similar to some combustion profiles, as well as sewage sludge and particulate deposition. In a very broad sense, this is true. OCDD and 1,2,3,4,6,7,8-HpCDD are typically the dominant constituents in these source categories. There is however, a distinct, consistent and repeatable feature in the lower chlorinated tetra, penta and hexa PCDD/F range of PCP related samples: an order of magnitude increase in concentration as a function of degree of chlorination. Because lower chlorinated furans concentrations make up less than 1% of the total PCDD/F in PCP, it is difficult to differentiate PCP from other OCDD dominated source profiles on bar-graphs that use a linear-scale y axis. Using a log-scale y axis, however, PCP impacted profiles are obvious, and are not easily confused with congener profiles from other sources.

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Principal components analysis of potential sources of polychlorinated dibenzop-dioxin and dibenzofuran residues in surficial sediments from Newark Bay, New Jersey

Cited by 44 publications

References 82 publications

Associations Between Dioxins/Furans and Dioxin-Like PCBs in Estuarine Sediment and Blue Crab

Associations Between Dioxins/Furans and Dioxin-Like PCBs in Estuarine Sediment and Blue Crab

Maldives: An archipelago that burns. A first survey of PCDD/Fs and DL-PCBs from human activities

Chlorinated Dioxin and Furan Congener Profiles from Pentachlorophenol Sources

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