The New Jersey Toxics Reduction Workplan for Ny-Nj Harbor: Distribution of Pcdd/Fs in Ambient Waters

Dimou, K. Nadia; Pecchioli, Joel A.

doi:10.1007/s11267-005-9009-y

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…Newark Bay sediment concentrations of total polychlorinated dibenzo- p -dioxins and furans were reported to be 0.8 – 9.3 ng/g (parts per billion) and 0.2 – 3.7 ng/g, respectively (Dimou and Pecchioli, 2006). Total polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) in sediments have been measured to be 44,000 and 756 ng/g, respectively (Huntley et al ., 1995; Panero et al ., 2005).…”

Section: 0 Introductionmentioning

confidence: 99%

Decreased vitellogenin inducibility and 17β-estradiol levels correlated with reduced egg production in killifish (Fundulus heteroclitus) from Newark Bay, NJ

2011

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Aquatic species inhabiting polluted estuaries are exposed to complex mixtures of xenobiotics which can alter normal reproduction. We previously reported that female Atlantic killifish (Fundulus heteroclitus) from the highly contaminated Newark Bay, NJ (USA) exhibited an inhibition of oocyte development due to reduced vitellogenin (egg-yolk precursor) levels. Our hypothesis was that the inhibition of oocyte development in Newark Bay killifish is due to (1) deficient levels of circulating 17β-estradiol, and (2) a decreased sensitivity of the vitellogenin pathway to physiological doses of 17β-estradiol. In the first study, adult naïve killifish from Tuckerton, NJ (reference) were caged at Tuckerton and Newark Bay. After 1 month, males caged at Newark Bay exhibited inductions of hepatic vitellogenin and estrogen receptor α, which were transient and returned to basal levels after 2 months (p ≤ 0.05). In the second study, fecundity and 17β-estradiol levels were measured in reproductively active adult females from Tuckerton and Newark Bay. Tuckerton females produced 140 eggs per female and Newark Bay females produced 11 eggs per female. Embryos from Newark Bay had 34% greater mortality and 28% less hatch, relative to Tuckerton. In addition, embryo mass and yolk-volume of Newark Bay embryos compared to Tuckerton embryos was 16% and 25% lower, respectively. Circulating 17β-estradiol levels in Newark Bay females (0.26 ng/mL) were measured to be 8-fold lower than Tuckerton females (2.25 ng/mL). In the third study, adult killifish from both sites were dosed with 17β-estradiol to assess the sensitivity of the vitellogenin pathway. At doses of 0.01, 0.1, 1 and 10 ng/g body weight, induction levels of circulating vitellogenin in Newark Bay males were significantly inhibited by 97, 99, 98 and 44%, respectively, compared to Tuckerton males. At doses of 0.01, 0.1, 1, 10 and 100 ng/g body weight, induction levels of circulating vitellogenin in Newark Bay females were inhibited by 89, 79, 61, 40 and 30%, respectively, compared to Tuckerton females. These differences in inducibility could not be explained by altered hepatic expression of estrogen receptors α, βa or βb. Based on the caged and dose-response studies, contaminants that down-regulate vitellogenin would interfere with its ability to be used as a biomarker for xeno-estrogen exposures. These studies demonstrate that contaminants within Newark Bay exert both estrogenic and anti-estrogenic responses which results in an overtly anti-estrogenic phenotype (reduced egg production due to inhibition of vitellogenesis).

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Section: 0 Introductionmentioning

confidence: 99%

Decreased vitellogenin inducibility and 17β-estradiol levels correlated with reduced egg production in killifish (Fundulus heteroclitus) from Newark Bay, NJ

2011

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“…The preliminary investigation indicated that samples containing the particulate fraction (i.e., biosolids, suspended particles from water, and whole water samples) exhibited a common set of PCDD/F fingerprints, while samples of the dissolved phase (sampled using XAD2 resin) displayed very different PCDD/F congener patterns. This difference can be attributed to the partitioning of PCBs and PCDD/Fs between the dissolved and particle phases . Therefore, dissolved phase (XAD2) samples were excluded from the data matrix.…”

Section: Methodsmentioning

confidence: 99%

“…This difference can be attributed to the partitioning of PCBs and PCDD/Fs between the dissolved and particle phases. 45 Therefore, dissolved phase (XAD2) samples were excluded from the data matrix. Samples for which PCBs were not analyzed were also necessarily excluded, leaving 64 samples.…”

Section: Environmental Science and Technologymentioning

confidence: 99%

Forensic Analysis of Polychlorinated Dibenzo-p-Dioxin and Furan Fingerprints to Elucidate Dechlorination Pathways

Rodenburg

Dewani

Häggblom

et al. 2017

Environ. Sci. Technol.

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Polychlorinated dibenzo-p-dioxins and -furans (PCDD/Fs) are persistent organic pollutants whose main removal process in the environment is due to biodegradation, and particularly anaerobic reductive dechlorination. Since PCDD/F congeners that are substituted in the lateral 2, 3, 7, and 8 positions are the most toxic, removal of these chlorines is advantageous, but previous studies have only demonstrated their removal under laboratory conditions. We evaluated a concentration data set of PCDD/F congeners with four or more chlorines along with all 209 polychlorinated biphenyl (PCB) congeners in surface water, treated and untreated wastewater, landfill leachate, and biosolids (NY CARP data set) to determine whether peri and peri/lateral dechlorination of PCDD/Fs occurs in these environments. Positive Matrix Factorization (PMF) applied to the data set revealed a factor indicative of the microbial dechlorination of PCBs, and this factor also contained a variety of non-2,3,7,8 substituted PCDD/F congeners. These results suggest that dechlorination of PCDD/Fs at the lateral positions is facile if not preferred in these environments. The relative lack of tetra- and penta-chlorinated PCDD/Fs suggested that dechlorination proceeds to PCDD/F congeners with less than four chlorines. The PMF results were confirmed by examining three samples that contained >90% PCB dechlorination products from the Fresh Kills Landfill and the Hudson River. Even without factor analysis, these samples demonstrated almost identical PCDD/F congener patterns. This study suggests that PCDD/Fs are reductively dechlorinated to nontoxic non-2,3,7,8 PCDD/F congeners in sewers and landfills as well as in the sediment of the Upper Hudson River.

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Advances in Remediation Technology

Bagtzoglou

2006

Water Air Soil Pollut: Focus

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The field of Environmental Engineering is fast approaching maturity levels. At the same time it has clearly established itself as one of the classic multi-and inter-disciplinary areas of specialization. One cannot be seriously involved in Environmental Engineering activities without strong collaborative ties across multiple sub-areas of specialization.For example, Environmental Biotechnology deals with biological waste treatment, microbial physiology and genetics, bioremediation and biodegradation of xenobiotic compounds, bacterial adhesion and biofilm formation, molecular ecology of biofilms, bioremediation and green chemicals synthesis, and numerous other applications. Environmental Modeling, on the other hand, is usually conducted in tandem with work in Environmental Biotechnology at the design phase and deals with mass transfer mechanisms in bacterial biofilms, surface and groundwater flow and contaminant transport, optimization of novel catalytic materials and absorbents, fluid mechanics and heat transfer of reacting single and multi-phase flows, forest micrometeorology and microclimatology, estuarine restoration and many other areas of application. The ultimate test of both areas of sub-specialization, however, comes to bear at the Site Remediation level. This area entails remediation of sites contaminated by DNAPLs, LNAPLs and heavy metals through application of three-dimensional in-situ, non-destructive sampling, development of field analytical methods for volatile organic contaminants, application of multimedia technology for improving contaminant investigations, air-sparging, remediation of soil and aquifer systems with enhanced mixing, colloid-facilitated transport and several other applications.The Mid-Atlantic Industrial and Hazardous Waste Conference (MAIHWC) is an annual meeting of US engineering and science professionals from academia, government and industry. Strong international representation has also been a key to the conference's success over the years. The MAIHWC is organized by a consortium of the following universities:

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The New Jersey Toxics Reduction Workplan for Ny-Nj Harbor: Distribution of Pcdd/Fs in Ambient Waters

Cited by 4 publications

References 4 publications

Decreased vitellogenin inducibility and 17β-estradiol levels correlated with reduced egg production in killifish (Fundulus heteroclitus) from Newark Bay, NJ

Decreased vitellogenin inducibility and 17β-estradiol levels correlated with reduced egg production in killifish (Fundulus heteroclitus) from Newark Bay, NJ

Forensic Analysis of Polychlorinated Dibenzo-p-Dioxin and Furan Fingerprints to Elucidate Dechlorination Pathways

Advances in Remediation Technology

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