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polybrominateddiphenylethers, etc ; bromination; edaphic factors; electronic wastes; groundwater flow; hydrophobicity; landfills; soil remediation; sorption; Show all 9 Subjects
Abstract:
... The movement of contaminants through subsurface is usually a complex phenomenon. As such, contaminant–soil interaction is important to assess the fate and transport of contaminants through the soil as well as groundwater flow systems. Thus, laboratory-scale columns are pertinent tools for studying the release potential of hydrophobic organic contaminants from soil or waste materials. Herein, a lab ...
polybrominateddiphenylethers, etc ; Larus delawarensis; biotransformation; dehalogenation; dithiothreitol; liver; liver microsomes; research; thyroxine; Canada; Show all 10 Subjects
Abstract:
... Several halogenated flame retardants (HFRs) have been identified as thyroid disruptors in birds including the polybrominated diphenyl ether (PBDE) mixtures, which have been replaced with other HFRs such as Dechlorane-604 (Dec-604). Dec-604 Component B (Dec-604 CB), a putative debrominated product of Dec-604, has been frequently reported in urban-adapted ring-billed gulls (Larus delawarensis) breed ...
polybrominateddiphenylethers, etc ; decontamination; dehalogenation; dibenzofuran; fish oils; hexachlorobenzene; hexane; photochemistry; polychlorinated biphenyls; polychlorinated dibenzodioxins; ultraviolet radiation; Show all 11 Subjects
Abstract:
... This study has investigated the photochemical degradation of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), polybrominated diphenylethers (PBDEs) and some organochlorine pesticides, such as hexachlorobenzene (HCB) or dichloro-diphenyl-trichloroethane (DDT) in hexane under UV irradiation at 254 nm. All pollutants were completely degraded after 3.5 h ...
polybrominateddiphenylethers, etc ; Wickerhamomyces anomalus; bioremediation; cadmium; carbon; chromium; genes; heavy metals; pollution; research; soil; synergism; tobacco; Show all 13 Subjects
Abstract:
... Few research have focused on the potential microorganism and gene resources for plant resistance to polybrominated diphenyl ether (PBDE) and heavy metal (HM) co-contamination. The purpose of this study was to investigate the impact of phyllospheric Wickerhamomyces anomalus bioremediation ability on PBDE and HM co-contamination. The results showed that the toleration capability of W. anomalus to ca ...
polybrominateddiphenylethers, etc ; aquatic food webs; bioaccumulation; data collection; marine environment; pollution; polychlorinated biphenyls; risk; Maine; Scotland; Show all 10 Subjects
Abstract:
... Contracting Parties to the OSPAR Convention for the Protection of the Maine Environment of the North-East Atlantic are required to undertake monitoring and assessment of both inorganic and organic contaminants. There is a requirement to assess contaminants across different trophic levels on an ecosystem-specific basis. However, this is currently constrained by the availability of relevant samples ...
polybrominateddiphenylethers, etc ; adults; body weight; fish; furans; health effects assessments; polychlorinated biphenyls; polychlorinated dibenzodioxins; seafood consumption; seafoods; toxicity; France; Show all 12 Subjects
Abstract:
... There has been a recent revival of interest in some historical contaminants such as polychlorinated naphthalenes (PCNs). However, occurrence data are still lacking in some countries although industrial production of PCNs has been reported. This observation led to the first ever assessment of their presence in fish and seafood products in France in the present work. Their analysis was integrated in ...
... Following the discontinuation of commercial polybrominated diphenyl ether (PBDE) mixtures, a variety of alternative flame retardants (FRs) have been developed and employed. To understand the contamination status of these emerging FRs in marine fish and wildlife, we investigated their bioaccumulation in four shark species, including shortfin mako shark (Isurus oxyrhinchus; n = 26), porbeagle (Lamna ...
... Persistent and semi-persistent halogenated compounds cause health problems for the animals occupying the upper level of the food web in the Baltic Sea. Atlantic salmon (Salmo salar), being a top piscivore in the Baltic Sea, has been observed to carry a large body burden of halogenated toxins. Here, a mixture of nine halogenated compounds belonging to different groups was created, based on the obse ...
Michelle Wainstein; Louisa B. Harding; Sandra M. O’Neill; Daryle T. Boyd; Fred Koontz; Bobbi Miller; Cornelya F. C. Klütsch; Philippe J. Thomas; Gina M. Ylitalo
... River otters (Lontra canadensis) are apex predators that bioaccumulate contaminants via their diet, potentially serving as biomonitors of watershed health. They reside throughout the Green-Duwamish River, WA (USA), a watershed encompassing an extreme urbanization gradient, including a US Superfund site slated for a 17-year remediation. The objectives of this study were to document baseline contami ...
polybrominateddiphenylethers, etc ; Nematoda; correspondence analysis; ecotoxicology; pollution; species abundance; Tunisia; Show all 7 Subjects
Abstract:
... The response taxonomic and trophic of meiobenthic organisms, especially marine nematodes to polybrominated diphenyl ether (BDE-47) was studied using a community from Bizerte lagoon (Nord-East Tunisia). Four concentrations of BDE-47 [D1 (2.5 μg/kg dw), D2 (25 μg/kg dw), D3 (50 μg/kg dw), and D4 (100 μg/kg dw)] were applied, and responses were determined 30 days after exposure. Species abundance and ...
polybrominateddiphenylethers, etc ; acetone; biphenyl; dust; hexane; methylene chloride; microwave treatment; silica; solvents; Show all 9 Subjects
Abstract:
... Microwave-assisted extraction was applied as a method for extraction of seven polybrominated diphenyl ether (PBDE) congeners (28, 47, 99, 100, 153, 154, and 183) from house dust samples. Optimization of MAE experimental conditions was achieved using a multivariate design approach, and the results indicated that only the choice of extraction solvent had a statistically significant influence on extr ...
... 2,2′,4,4′-Tetrabromodiphenyl ether (BDE-47) is a biotoxin of polybrominated diphenyl ether (PBDEs) frequently detected in the environment. Apoptosis and cell cycle arrest are important toxic phenomena of xenobiotics that inhibit cell proliferation. In this study, we investigated the effects of BDE-47 (5 μM, 10 μM, 20 μM, 40 μM) on cell viability, morphology, cell cycle and apoptosis. BDE-47 signif ...
polybrominateddiphenylethers, etc ; air; biphenyl; breast milk; bromination; diastereomers; fish; hexabromocyclododecane; polychlorinated biphenyls; sediments; Show all 10 Subjects
Abstract:
... In support of the United Nations Environment Programme (UNEP) global monitoring plan under the Stockholm Convention contributing laboratories were offered to take part in a series of interlaboratory assessments on persistent organic pollutants (POPs). The results of two rounds of these assessments are reported. The target compounds were polychlorinated biphenyls, organochlorine pesticides, polybro ...
polybrominateddiphenylethers, etc ; activated sludge; energy; environmental quality; income; pollutants; risk; triclosan; wastewater treatment; Brazil; Show all 10 Subjects
Abstract:
... This study aims to evaluate micropollutant occurrence and removal in a low-middle income country (LMIC) by investigating the occurrence of 28 chemicals from different classes (triclosan, 15 polycyclic aromatic hydrocarbons (PAHs), 4 estrogens and 8 polybrominated diphenyl ether (PBDE) congeners) in three technologically diverse full-scale Brazilian wastewater treatment plants (WWTPs). These chemic ...
polybrominateddiphenylethers, etc ; Cnidaria; bioaccumulation; combustion; corals; microplastics; mucus; phthalates; seawater; summer; symbiosis; technology; Persian Gulf; Show all 13 Subjects
Abstract:
... Persian Gulf coral reefs are unique biota communities in the global sunbelts in being able to survive in multiple stressful fields during summertime (>36 °C). Despite the high-growth emerging health-hazard microplastic additive type of contaminants, its biological interactions with coral–algal symbiosis and/or its synergistic effects linked to solar-bleaching events remain unknown. This study inve ...
polybrominateddiphenylethers, etc ; Raman spectroscopy; absorption; chemical species; detection limit; drinking water; electric field; environmental assessment; toxins; Show all 9 Subjects
Abstract:
... Surface-enhanced Raman spectroscopy (SERS) is a widely used sensing technique for ultrasensitivity chemical sensing, biomedical detection, and environmental analysis. Because SERS signal is proportional to the fourth power of the local electric field, several SERS applications have focused on the design of plasmonic nanogaps to take advantage of the extremely strong near-field enhancement that res ...
Miguel García-Villarino; Antonio J. Signes-Pastor; Isolina Riaño-Galán; Ana Cristina Rodríguez-Dehli; Esther Vizcaíno; Joan O. Grimalt; Ana Fernández-Somoano; Adonina Tardón
... During pregnancy, women are commonly exposed to several endocrine-disrupting chemicals, including persistent organic pollutants (POPs). These compounds can transfer to the fetus through the placenta. Prenatal POP exposure is related to altered fetal genital and reproductive tract development. However, the relationship between exposure to POP mixtures and anogenital distance (AGD) is poorly investi ...
polybrominateddiphenylethers, etc ; Chelonia mydas; DDE (pesticide); death; endangered species; gender; health status; kidneys; liver; muscles; pollution; toxicity; wildlife; Show all 13 Subjects
Abstract:
... Investigating environmental pollution is important to understand its impact on endangered species such as green turtles (Chelonia mydas). In this study, we investigated the accumulation and potential toxicity of selected persistent organic pollutants (POPs) and naturally occurring MeO-PBDEs in liver, fat, kidney and muscle of turtles (n = 30) of different gender, size, year of death, location and ...
polybrominateddiphenylethers, etc ; bromination; economic development; fauna; humans; marine pollution; metabolites; persistent organic pollutants; polychlorinated biphenyls; seabirds; wildlife; Western Australia; Show all 12 Subjects
Abstract:
... Marine animals that traverse coastal and offshore environments are potentially exposed to multiple sources of pollution. Baseline data of pollutant concentrations of these fauna are needed in remote areas as human populations grow and economic development increases because changes may affect local wildlife in unforeseen ways. Persistent organic pollutant (POPs) concentrations were quantified in an ...
polybrominateddiphenylethers, etc ; bromination; pollution; remediation; zinc; Show all 5 Subjects
Abstract:
... We synthesized a novel material, namely palladized zero-valent zinc (Pd/ZVZ), and investigated its efficiency for the degradation of polybrominated diphenyl ethers (PBDEs). The plated Pd significantly enhances the degradation rate of PBDEs by ZVZ at the optimum loading of 1% by weight. In the Pd/ZVZ system, very few lower BDEs were accumulated during the degradation of 2,2′,4,4′- tetrabromodipheny ...