نتایج جستجو برای: pbde

تعداد نتایج: 726  

2013
Xiao-Min Ren Liang-Hong Guo

Polybrominated diphenyl ethers (PBDEs) are used in large quantities as flame retardant additives in commercial products. Bio-monitoring data show that PBDE concentrations have increased rapidly in the bodies of wildlife and human over the last few decades. Based on the studies on experimental animals, the toxicological endpoints of exposure to PBDEs are likely to be thyroid homeostasis disrupti...

2015
Maria-Jose Lopez-Espinosa Olga Costa Esther Vizcaino Mario Murcia Ana Fernandez-Somoano Carmen Iñiguez Sabrina Llop Joan O. Grimalt Ferran Ballester Adonina Tardon

Our aim was to investigate the relation between PBDEs and fetal growth or newborn anthropometry in a Spanish cohort (2003-2008). PBDE congeners (BDE-47, -99, -153, -154, and -209) were determined in serum of 670 mothers at gestational week 12 and in 534 umbilical cord samples. Abdominal circumference (AC), estimated fetal weight (EFW), femur length (FL), and biparietal diameter (BPD) during ges...

Journal: :Talanta 2013
Yan-ping Lin Isaac N Pessah Birgit Puschner

Sensitive and reliable methods for simultaneous determination of polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) in limited volumes of human serum or plasma need to be further documented especially when they accumulate at low levels that are still capable of disrupting endocrine and immune functions, and affecting neurodevelopment and reproduction. The objective of t...

Journal: :Chemosphere 2012
Juan José Alava Dyanna Lambourn Peter Olesiuk Monique Lance Steven J Jeffries Frank A P C Gobas Peter S Ross

Polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) were measured in blubber biopsy samples from 22 live-captured Steller sea lions (Eumetopias jubatus) that had just entered the Strait of Georgia, British Columbia, Canada, for their overwintering feeding season. ∑PBDE ranged from 50μgkg(-1) (lipid weight) in adult females to 3780μgkg(-1) in subadult individuals. ∑PCBs r...

2014
Man Young Chun

OBJECTIVES This study was conducted to determine the depositional characteristics of several tree barks, including Ginkgo (Ginkgo biloba), Pine (Pinus densiflora), Platanus (Platanus), and Metasequoia (Metasequoia glyptostroboides). These were used as passive air sampler (PAS) of atmospheric polybrominated diphenyl ethers (PBDEs). METHODS Tree barks were sampled from the same site. PBDEs were...

Journal: :Chemosphere 2017
Helena Bjermo Marie Aune Tatiana Cantillana Anders Glynn P Monica Lind Peter Ridefelt Per Ola Darnerud

The aim of this study was to investigate associations between serum concentrations of brominated flame retardants and personal characteristics, including diet, in adults participating in a population-based study in Sweden 2010-11. Moreover, observed concentrations were used in a health risk assessment, using published health-based reference values. Serum samples of 170 adult individuals of both...

2006
Kim J. Fernie J. Laird Shutt David M. Bird Robert J. Letcher

Introduction. Polybrominated diphenyl ethers (PBDEs) are manufactured as additive flame retardants in the production of polyurethane foams, textiles and plastics. PBDEs are persistent, lipophilic compounds that bioaccumulate through to the highest levels of the food chain (e.g., Lindberg et al., 2004). Recent reports have demonstrated that avian populations are subject to PBDE bioaccumulation b...

2009
Pamela Imm Lynda Knobeloch Carol Buelow Henry A. Anderson

BACKGROUND Human exposure to polybrominated diphenyl ethers (PBDEs) is virtually universal in the United States. Although the uses of these chemicals as flame retardants in fabrics, foams, and plastics are well defined, human exposure pathways are not well understood. OBJECTIVES This study was designed to assess current PBDE body burdens and identify residential sources of exposure among 29 m...

2004
Olaf Paepke Bärbel Vieth Barbara Ostermann Thomas Herrmann

Polybrominated diphenylethers (PBDEs) are widely used as flame retardants in polymer materials, textiles, electronic boards and various other materials. Technical PBDE preparations are produced as mixtures of mainly penta-, octaor decabromobiphenyl ethers. PBDEs are structurally similar to other environmental pollutants, such as dioxins and PCBs. They are lipophilic and persistent compounds and...

2012
Meiying Xu Xingjuan Chen Mengde Qiu Xiaowei Zeng Jian Xu Daiyong Deng Guoping Sun Xiang Li Jun Guo

Polybrominated diphenyl ethers (PBDEs) can be reductively degraded by microorganisms under anaerobic conditions. However, little is known about the effect of electron donors on microbial communities involved in PBDEs degradation. Here we employed 454 Titanium pyrosequencing to examine the phylogenetic diversity, composition, structure and dynamics of microbial communities from microcosms under ...

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