Last edited by Vuzragore
Tuesday, July 14, 2020 | History

4 edition of Brominated Diphenyl Ethers (Environmental Health Criteria , No 162) found in the catalog.

Brominated Diphenyl Ethers (Environmental Health Criteria , No 162)

by World Health Organization

  • 5 Want to read
  • 9 Currently reading

Published by World Health Organization .
Written in English

    Subjects:
  • Environmental factors,
  • Environmental science,
  • Medical toxicology,
  • Pollution & threats to the environment,
  • Chemical Pollution,
  • Environmental Toxicology

  • The Physical Object
    FormatPaperback
    Number of Pages347
    ID Numbers
    Open LibraryOL12898461M
    ISBN 109241571624
    ISBN 109789241571623

    USEPA, , Method Brominated diphenyl ethers in water, soil, sediment, and tissue by HRGC/HRMS, EPAR Brief Method Summary EPA Method was developed by the Office of Water's Office of Science and Technology (OST) to determine polybrominated diphenyl ether (PBDE) congeners in aqueous, solid, tissue, and multi-phase matrices. The book was written following a meeting of the WHO task group on Environmental Health Criteria for Brominated Diphenyl Ethers at Geneva, Switzerland from 28 June to 2 July It evaluates the risk to human health and the environment posed by exposure to 10 brominated diphenyl ethers. Three compounds (decabromodiphenyl ether, octabromodiphenyl ether and pentabromodiphenyl ether) are .

    Geometric means of polybrominated diphenyl ethers (PBDEs) and hydroxylated brominated diphenyl ethers (OH-BDEs) (ng/g lipid) from women from the EARTH cohort by year (–) of sample collection. (Only one sample was collected in and not included.). Polybrominated Diphenyl Ethers Division of Toxicology September concentrations of lower brominated PBDEs in blood, breast milk, and body fat indicate that most people are exposed to low levels of these PBDEs. Concentrations of lower brominated PBDEs have been increasing in tissues and body fluids of individuals living in the United States.

    Brominated-chlorinated diphenyl ethers formed by thermolysis of polybrominated diphenyl ethers at low temperatures [An article from: Chemosphere] [S. Rupp, J.W. Metzger] on *FREE* shipping on qualifying offers. This digital document is a journal article from Chemosphere, published by Elsevier in. The article is delivered in HTML format and is available in your Media Author: S. Rupp, J.W. Metzger. This book chapter covers both developmental and reproductive effects of brominated flame retardants (BFRs) with emphasis on polybrominated diphenyl ethers (PBDEs). BFRs belong to a large group of organohalogen chemicals. They are highly persistent, bioaccumulative and cause adverse effects in humans and wildlife.


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Brominated Diphenyl Ethers (Environmental Health Criteria , No 162) by World Health Organization Download PDF EPUB FB2

31 targeted analytes presented quantification frequencies (Q f) above 60% in household dust from Belgium, Italy and descriptive statistics for OPs, PBDEs and NBFRs in house dust for each country, as well as the total sample, are shown in Fig.

1, Fig. 2 and Table S4. Profiles of OPs and PBDEs were also calculated ().Total median values obtained in the three countries (n = 65) were Cited by: Commercial products are commonly a mixture of various congeners, and a pentaBDE may contain tetra, penta, and hexabromodiphenyl ethers.

Many PBDEs were used in mixtures. Considerable effort has been invested in the evaluation of formation of halogenated dibenzodioxins and dibenzofurans from flame-retardant brominated diphenyl ethers. Brominated Diphenyl Ethers Known as: PBDEs, Polybrominated diphenyl ethers, Ethers, Polybrominated Diphenyl Expand A mixture of synthetic solids, containing aromatic rings connected by an ether bond and containing one or more bromine atoms, that is virtually.

Abstract Evaluates the risks to human health and the environment posed by exposure to ten brominated diphenyl ethers. Of these, three (‎decabromodiphenyl ether, octabromodiphenyl ether, and pentabromodiphenyl ether)‎ are widely manufactured and used as additive flame retardants. Polybrominated diphenyl ethers (PBDEs) include the commercial versions of pentabromodiphenyl ether (c-pentaBDE), octabromodiphenyl ether (c-octaBDE), and decabromodiphenyl ether (c-decaBDE).

Each of these commercial products is a mixture composed of several PBDE congeners. PBDEs are used as flame retardants in a number of applications. Abstract. Brominated flame retardants (BFRs), such as polybrominated diphenyl ethers (PBDEs), hexabromocyclododecanes (HBCDs), and tetrabromobisphenol-A (TBBP-A), have routinely been added to consumer products for several decades in an effort to reduce fire-related injury and property damage.

Evidence for adverse effects of brominated flame retardants (BFRs) in humans is reviewed, with a focus on polybrominated diphenyl ethers (PBDEs).

BFRs may easily leach out during manufacture or the use of consumer products, and enter the environment. Hydroxylated and Methoxylated Brominated Diphenyl Ethers in the Red Algae Ceramium tenuicorne and Blue Mussels from the Baltic Sea.

Environmental Science & Technology39 (9), Analysis of mono- to deca-brominated diphenyl ethers in chickens at the part per billion level. Chemosphere. Feb; 46 (5)– Ikonomou Michael G, Rayne Sierra, Addison Richard F.

Exponential increases of the brominated flame retardants, polybrominated diphenyl ethers, in the Canadian Arctic from to In an investigation carried out by the WWF, "the brominated flame retardant chemical (PBDE ), which is a component of the penta- and octa- brominated diphenyl ether flame retardant products" was found in all blood samples of 14 ministers of health and environment of 13 European Union countries.

Use of legacy brominated flame retardants (BFRs), including polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCD), has been reduced due to adverse effects of these chemicals. Several novel brominated flame retardants (NBFRs), such decabromodiphenyl ethane (DBDPE) and bis(2,4,6-tribromophenoxy) ethane (BTBPE), have been developed as replacements for PBDEs.

Polybrominated diphenyl ethers or PBDEs, are organobromine compounds that are used as flame other brominated flame retardants, PBDEs have been used in a wide array of products, including building materials, electronics, furnishings, motor vehicles, airplanes, plastics, polyurethane foams, and textiles.

They are structurally akin to the PCBs and other polyhalogenated compounds. The brominated diphenyl ether fraction was isolated by vacuum liquid chromatography, and the major and minor metabolites were separated by reverse-phase HPLC.

The minor metabolite (1) was found by high-resolution electrospray mass spectrometry (negative ion mode) to have the same molecular formula as (2), C 12 H 5 Br 5 O 2. polybrominated diphenyl ethers (PBDEs), and inEPA expects to publish a proposal in the Federal Register for public comment to add this method to other CWA methods published at 40 CFR Part EPA Method A was developed to determine polybrominated diphenyl ether (PBDE) congeners in aqueous, solid, tissue, and multi-phase matrices.

What are Polybrominated Diphenyl Ethers (PBDEs). Polybrominated diphenyl ethers (PBDEs) are manufactured, flame-retardant chemicals. PBDEs are used in many consumer products, including cell phones, remote controls, personal computers, computer monitors, textiles, electronics, and cabinets and enclosures for electronics.

4 Effect of Polybrominated Diphenyl Ethers on Neurodevelopment. Polybrominated diphenyl ethers (PBDEs) are a class of brominated hydrocarbons that have been used as flame retardants in a variety of products, such as textiles, plastics, electronic materials, and polyurethane foams for furniture ().The class is comprised of congeners that share a brominated diphenyl ether molecule with up to.

Polybrominated diphenyl ethers (PBDEs) containing two to 10 bromines are ubiquitous in the Arctic, in both abiotic and biotic samples. Hexabromocyclododecane (HBCD) is also ubiquitous in the Arctic, with the gamma-HBCD isomer predominating in air, the alpha-HBCD isomer predominating in biota and similar concentrations of alpha- beta- and gamma-HBCD found in marine sediments.

Brominated Diphenyl Ethers (Environmental Health Criteria) [World Health Organization] on *FREE* shipping on qualifying offers. Viberg H, Johansson N, Fredriksson A, Eriksson J, Marsh G, Eriksson P. Neonatal exposure to higher brominated diphenyl ethers, hepta- octa- or nonabromodiphenyl ether, impairs spontaneous behavior and learning and memory functions of adult mice.

Toxicol Sci. ; – A temporal trend study of brominated flame retardants in eggs from peregrine falcon (Falco peregrinus peregrinus), a terrestrial bird of prey, is presented.

Eggs collected between and were analyzed for the major constituents of the Penta- Octa- and Decabromodiphenyl ether technical produc. Diphenyl ether is found in alcoholic beverages. Diphenyl ether is present in muscat grapes, green tea, vanilla, lemon balm, buckwheat, potato chips and grilled beef.

Diphenyl ether is a flavouring ingredient Diphenyl ether is a starting material in the production of phenoxathiin via the Ferrario reaction.The higher-brominated PBDEs, particularly decaBDE, act somewhat differently in the body than do lower-brominated PBDEs.

If you breathe air that contains PBDEs, or swallow food, water, soil, or dust contaminated with PBDEs, the lower-brominated congeners are more likely than decaBDE to enter your body through your lungs and stomach and pass into.COVID Resources.

Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.