نتایج جستجو برای: pbde 209

تعداد نتایج: 8441  

Journal: :Environmental science & technology 2008
Daniele F Staskal Laura L F Scott Laurie C Haws William J Luksemburg Linda S Birnbaum Jon D Urban E Spencer Williams Dennis J Paustenbach Mark A Harris

Despite the growing public interest in polybrominated diphenyl ethers (PBDEs), there are relatively few studies in the published literature which characterize and quantify human intake of these compounds. In this study, PBDE concentrations were measured in southern Mississippi catfish to determine background levels, daily intake, and risk associated with the consumption of these chemicals from ...

Journal: :Environmental science & technology 2012
Bao-Zhong Zhang Kai Zhang Shao-Meng Li Charles S Wong Eddy Y Zeng

Gaseous and size-segregated particulate PBDEs (specifically BDE-47, -99, -183, -207, and -209) in the air were measured in urban Guangzhou at 100 and 150 m above the ground in daytime and at night in August and December 2010, to assess dry deposition of these contaminants accurately with regards to influences of meteorological factors but without confounding surface effects. Particulate PBDEs w...

2010
Marie Frederiksen Katrin Vorkamp Line Mathiesen Tina Mose Lisbeth E Knudsen

BACKGROUND Polybrominated diphenyl ethers (PBDEs) have been widely used as flame retardants in consumer products. PBDEs may affect thyroid hormone homeostasis, which can result in irreversible damage of cognitive performance, motor skills and altered behaviour. Thus, in utero exposure is of very high concern due to critical windows in fetal development. METHODS A human ex vivo placenta perfus...

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: :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...

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...

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...

Journal: :Chemosphere 2011
Peng-Yan Liu Guo-Dong Du Ya-Xian Zhao Yun-Song Mu Ai-Qian Zhang Zhan-Fen Qin Xiao-You Zhang Shi-Shuai Yan Yan Li Rong-Guo Wei Xiao-Fei Qin Yong-Jian Yang

To investigate bioaccumulation, maternal transfer and elimination of polybrominated diphenyl ethers (PBDEs) in amphibians, we collected adult frogs (Rana limnocharis) from a rice field in an e-waste recycling site in China. We found that ∑PBDEs in the whole frogs and various tissues (brain, liver, testis and egg) ranged from 17.10 to 141.11 ng g(-1) wet weight. Various tissues exhibited a simil...

Journal: :Chemosphere 2015
Ming-Hong Wu Jing-Cheng Pei Ming Zheng Liang Tang Yang-Yang Bao Ben-Tuo Xu Rui Sun Yan-Feng Sun Gang Xu Jian-Qiu Lei

In this study, 14 polybrominated diphenyl ethers (PBDEs) congeners were investigated in soil and outdoor dust taken from Jiading District, Shanghai City. The concentrations of Σ13PBDEs (BDE-17, BDE-28, BDE-47, BDE-66, BDE-71, BDE-85, BDE-99, BDE-100, BDE-138, BDE-153, BDE-154, BDE-183 and BDE-190) and BDE-209 ranged from 0.37 to 32.9ngg(-1) and 4.31 to 141.8ngg(-1) dry weight (dw) in soil. Conc...

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