Results 101 to 110 of about 1,848 (133)

Halogenated diphenyl ethers identified in avian tissues and eggs by GC/MS

Chemosphere, 1983
Abstract Chlorinated and brominated diphenyl ether compounds (DPEs) have been detected by gas Chromatography/ mass spectrometry (GC/MS) in eggs and carcasses of fish-eating birds from Louisiana, Michigan, Ohio, Rhode Island, Texas, Virginia, and Ontario, Canada.
exaly   +2 more sources

Bioaccumulation of Polybrominated Diphenyl Ethers and Alternative Halogenated Flame Retardants in a Vegetation–Caribou–Wolf Food Chain of the Canadian Arctic

Environmental Science & Technology, 2018
The trophodynamics of halogenated flame retardants (HFRs) including polybrominated diphenyl ethers (PBDEs) and alternative HFRs were investigated in the terrestrial, vegetation-caribou-wolf food chain in the Bathurst Region of northern Canada. The greatest concentrations in vegetation (geometric mean of lichens, moss, grasses, willow, and mushrooms ...
Derek Muir, Adam Morris, Xiaowa Wang
exaly   +3 more sources

Photochemical Formation of Halogenated Dioxins from Hydroxylated Polybrominated Diphenyl Ethers (OH-PBDEs) and Chlorinated Derivatives (OH-PBCDEs)

Environmental Science & Technology, 2009
The potential photochemical formation of polybrominated and mixed halogenated dibenzo-p-dioxins (PBDDs and PXDDs) from hydroxylated polybrominated and polybrominated/ chlorinated diphenyl ethers (OH-PBDEs and OH-PBCDEs) in aqueous solution was studied. The ortho-hydroxylated BDE47 derivative 6-OH-BDE47, and chlorinated derivatives 3-Cl-6-OH-BDE47, 5-Cl-
Kristopher Mcneill, William Arnold
exaly   +3 more sources

Ab initio study of halogenated diphenyl ethers. NMR chemical shift prediction

Magnetic Resonance in Chemistry, 2000
Jiwei Hu, Jussi Eloranta
exaly   +2 more sources

Evidence of polybrominated diphenyl ethers (PBDEs) and alternative halogenated flame retardants (AHFRs) in wild fish species from the remote tropical marine environment, south China sea

Environmental Pollution
Polybrominated diphenyl ethers (PBDEs) and their alternatives (e.g., dechlorane plus (DPs) and decabromodiphenyl ethane (DBDPE)) are ubiquitous in various environmental media. However, limited data is available on these chemicals in edible fish species from the wide-open South China Sea (SCS).
Bi-Xian Mai, Bingzhong Yang, Fengjiao Peng   +2 more
exaly   +3 more sources

1H, 13C NMR spectroscopy and conformational properties of 18 halogenated diphenyl ethers

Chemosphere, 1994
Abstract 18 Polyhalogenated diphenyl ethers (DEs) were synthesized and their 1H and 13C NMR spectra measured and analyzed. As far as we know, most NMR data are reported for the first time. The assignments of the 1H and 13C NMR spectra of one congener were ascertained by 2-D 13C-1H COSY measurements.
Jiwei Hu, Erkki Kolehmainen, Tapio Nevalainen, Reijo Kauppinen   +3 more
openaire   +1 more source

Induced Production of Halogenated Diphenyl Ethers from the Marine‐Derived Fungus Penicillium chrysogenum

Chemistry & Biodiversity, 2010
AbstractManipulation of the fermentation of the marine‐derived fungus Penicillium chrysogenum by addition of CaBr2 resulted in induced production of bromodiphenyl ether analogs. Two new free‐radical‐scavenging polybrominated diphenyl ethers, 1 and 2, and three known diphenyl ethers, 3,3′‐dihydroxy‐5,5′‐dimethyldiphenyl ether (3), and an inseparable ...
Guohua, Yang, Keumja, Yun, Viviane N, Nenkep, Hong Dae, Choi, Jung Sook, Kang, Byeng Wha, Son   +5 more
openaire   +2 more sources

Polybrominated diphenyl ethers, toxaphenes, and other halogenated organic pollutants in great blue heron eggs

Environmental Toxicology and Chemistry, 2009
Abstract The great blue heron (Ardea herodias) has been used as a bioindicator of the state of the St. Lawrence River (Québec, Canada) since 1996. At 5-year intervals, selected breeding colonies along the River and its estuary are visited to estimate reproductive success and determine levels of contamination.
Louise, Champoux, John, Moisey, Derek C G, Muir   +2 more
openaire   +2 more sources

Determination of emerging halogenated flame retardants and polybrominated diphenyl ethers in serum by gas chromatography mass spectrometry

Journal of Chromatography A, 2013
Emerging flame retardants are used in a great variety of household goods and thus have the potential to pollute our indoor environment. Health concerns regarding exposure to these flame retardants demand new methods to survey their occurrence in humans.
Enrique, Cequier, Rosa Maria, Marcé, Georg, Becher, Cathrine, Thomsen   +3 more
openaire   +2 more sources

Low-Level Alternative Halogenated Flame Retardants (Ahfrs) in Indoor Dust from Adelaide, South Australia Decades Since National Legislative Control on Polybrominated Diphenyl Ethers (Pbdes)

SSRN Electronic Journal, 2021
Since commercial polybrominated diphenyl ethers (PBDEs) have been globally banned or restricted in 2000s, alternative halogenated flame retardants (AHFRs) appear increasingly dominant over PBDEs in many countries/regions. In this study, low levels of AHFRs were unexpectedly observed in the indoor dust from Adelaide, South Australia.
Yan, Yang, Liu, Yang, Haojia, Chen, Hongli, Tan, Jing, Yang, Fengjiang, Sun, Jiachen, Sun, Xue, Gong, Lin, Tao, Yichao, Huang   +9 more
openaire   +2 more sources