نتایج جستجو برای: pbdes

تعداد نتایج: 1044  

2013
Yonggang Yang Meiying Xu Zhili He Jun Guo Guoping Sun Jizhong Zhou

Due to environmental persistence and biotoxicity of polybrominated diphenyl ethers (PBDEs), it is urgent to develop potential technologies to remediate PBDEs. Introducing electrodes for microbial electricity generation to stimulate the anaerobic degradation of organic pollutants is highly promising for bioremediation. However, it is still not clear whether the degradation of PBDEs could be prom...

2015
Huimei Shan Chongxuan Liu Zheming Wang Teng Ma Jianying Shang Duoqiang Pan

A new method was developed for rapid and direct measurement of polybrominated diphenyl ethers (PBDEs) in aqueous samples using fluorescence spectroscopy. The fluorescence spectra of tri- to deca-BDE (BDE 28, 47, 99, 153, 190, and 209) commonly found in environment were measured at variable emission and excitation wavelengths. The results revealed that the PBDEs have distinct fluorescence spectr...

2009
Saori TOYOSHIMA Tomohiko ISOBE Karri RAMU Hitoshi MIYASAKA Koji OMORI Shin TAKAHASHI Shuhei NISHIDA Shinsuke TANABE

Organochlorine compounds (OCs), brominated flame retardants (BFRs) and stable isotopes (δ15N and δ13C) were analyzed in various deep-sea organisms collected from Sagami Bay, Japan in 2004. PCBs and DDTs were the predominant contaminants detected in this study, followed by CHLs > HCB > HBCDs > PBDEs > HCHs. Concentrations of PCBs, DDTs, CHLs, HCB and PBDEs, which have high adsorptive affinities ...

2013
Brenda Eskenazi Jonathan Chevrier Stephen A. Rauch Katherine Kogut Kim G. Harley Caroline Johnson Celina Trujillo Andreas Sjödin Asa Bradman

BACKGROUND California children's exposures to polybrominated diphenyl ether flame retardants (PBDEs) are among the highest worldwide. PBDEs are known endocrine disruptors and neurotoxicants in animals. OBJECTIVE Here we investigate the relation of in utero and child PBDE exposure to neurobehavioral development among participants in CHAMACOS (Center for the Health Assessment of Mothers and Chi...

2014
Min Li Zhenping Liu Liang Gu Rong Yin Huarong Li Xiaobai Zhang Tongcheng Cao Cizhong Jiang

Polybrominated diphenyl ethers (PBDEs) are widely used as flame-retardant additives in consumer and household products and can escape into the environment over time. PBDEs have become a global environmental organic pollutant due to the properties of persistence, toxicity, and bioaccumulation. The well-studied toxic effects of PBDEs mainly include thyroid hormone disruption and neurotoxicity. Th...

2015
Marek Roszko Krystyna Szymczyk Renata Jędrzejczak

The aim of this study was to investigate (i) the behavior of native PBDEs during UV irradiation in different media, (ii) the possibility of their transformation into hydroxylated PBDEs in aqueous media, and (iii) the photochemistry/levels of brominated dioxins/furans formed from hydroxylated PBDEs. Debromination leading to the formation of a wide range of low-brominated congeners was the main p...

Journal: :Environmental toxicology and chemistry 2010
Kang Xia Lakhwinder S Hundal Kuldip Kumar Kevin Armbrust Albert E Cox Thomas C Granato

Land application of biosolids is a common practice throughout the world. However, concerns continue to be raised about the safety of this practice, because biosolids may contain trace levels of organic contaminants. The present study evaluated the levels of triclocarban (TCC), triclosan (TCS), 4-nonylphenol (4-NP), and polybrominated diphenyl ethers (PBDEs) in biosolids from 16 wastewater treat...

Journal: :Environmental science & technology 2008
Guo-Cheng Hu Xiao-Jun Luo Jia-Yin Dai Xiu-Lan Zhang Hua Wu Cheng-Lin Zhang Wei Guo Mu-Qi Xu Bi-Xian Mai Fu-Wen Weit

Organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and brominated flame retardants (BFRs) were investigated in captive giant and red panda tissues from China. The total concentrations of OCPs, PCBs, and polybrominated diphenyl ethers (PBDEs) in tissues ranged from 16.3 to 888 ng/g lipid weight (lw), 24.8 to 854 ng/g lw, and 16.4 to 2158 ng/g lw, respectively. p,p'-DDE and beta-...

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 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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