Polybrominated diphenyl ethers in air and fallouts from an e-waste polluted region in southeast China: insight into levels, compositional profiles, and seasonal variation

2015 ◽  
Vol 22 (24) ◽  
pp. 19676-19686 ◽  
Author(s):  
Feng Xu ◽  
Gang Zhang ◽  
Junxia Wang ◽  
Wei Zhang ◽  
Lili Liu ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Polybrominated Diphenyl Ethers ◽  
Southeast China ◽  
Diphenyl Ethers ◽  
Insight Into

Seasonal variation of polybrominated diphenyl ethers in PM2.5 aerosols over the East China Sea

Chemosphere ◽  
2015 ◽  
Vol 119 ◽  
pp. 675-681 ◽  
Author(s):  
Yuanyuan Li ◽  
Tian Lin ◽  
Fengwen Wang ◽  
Tianyi Ji ◽  
Zhigang Guo
Keyword(s):  
Seasonal Variation ◽  
East China Sea ◽  
Polybrominated Diphenyl Ethers ◽  
East China ◽  
The East China Sea ◽  
China Sea ◽  
Diphenyl Ethers

Polybrominated Diphenyl Ethers and Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in Surface Dust at an E-Waste Processing Site in Southeast China

2011 ◽  
Vol 45 (13) ◽  
pp. 5775-5782 ◽  
Author(s):  
Anna O. W. Leung ◽  
Jinshu Zheng ◽  
Chik Kin Yu ◽  
Wing Keung Liu ◽  
Chris K.C. Wong ◽  
...  
Keyword(s):  
Polybrominated Diphenyl Ethers ◽  
Waste Processing ◽  
Southeast China ◽  
Surface Dust ◽  
Diphenyl Ethers ◽  
Processing Site

Polybrominated diphenyl ethers in birds from Chongming Island, Yangtze estuary, China: Insight into migratory behavior

Chemosphere ◽  
2013 ◽  
Vol 91 (10) ◽  
pp. 1416-1425 ◽  
Author(s):  
Kai Huang ◽  
Kuangfei Lin ◽  
Jie Guo ◽  
Xiaoyu Zhou ◽  
Junxia Wang ◽  
...  
Keyword(s):  
Polybrominated Diphenyl Ethers ◽  
Yangtze Estuary ◽  
Migratory Behavior ◽  
Chongming Island ◽  
Diphenyl Ethers ◽  
Insight Into

scholarly journals Reductive Debromination of Polybrominated Diphenyl Ethers by Anaerobic Bacteria from Soils and Sediments

2009 ◽  
Vol 76 (3) ◽  
pp. 794-802 ◽  
Author(s):  
Lip Kim Lee ◽  
Jianzhong He
Keyword(s):  
Polybrominated Diphenyl Ethers ◽  
Diphenyl Ether ◽  
Anaerobic Bacteria ◽  
Metabolic Process ◽  
Rrna Gene ◽  
Environmental Media ◽  
Total Product ◽  
Soils And Sediments ◽  
Diphenyl Ethers ◽  
Insight Into

ABSTRACT Polybrominated diphenyl ethers (PBDEs) have attracted attention recently due to their proven adverse effects on animals and their increasing concentrations in various environmental media and biota. To gain insight into the fate of PBDEs, microcosms established with soils and sediments from 28 locations were investigated to determine their debromination potential with an octa-brominated diphenyl ether (octa-BDE) mixture consisting of hexa- to nona-BDEs. Debromination occurred in microcosms containing samples from 20 of the 28 locations when they were spiked with octa-BDE dissolved in the solvent trichloroethene (TCE), which is a potential cosubstrate for stimulating PBDE debromination, and in microcosms containing samples from 11 of the 28 locations when they were spiked with octa-BDE dissolved in nonane. Debromination products ranging from hexa- to mono-BDEs were generated within 2 months. Notably, the toxic tetra-BDEs accounted for 50% of the total product. In sediment-free culture C-N-7* amended with the octa-BDE mixture and nonane (containing 45 nM nona-BDE, 181 nM octa-BDEs, 294 nM hepta-BDE, and 19 nM hexa-BDE) there was extensive debromination of the parent compounds, which produced hexa-BDE (56 nM), penta-BDEs (124 nM), and tetra-BDEs (150 nM) within 42 days, possibly by a metabolic process. A 16S rRNA gene-based analysis revealed that Dehalococcoides species were present in 11 of 14 active microcosms. However, unknown debrominating species in some of the microcosms debrominated the octa-BDE mixture in the absence of other added halogenated electron acceptors (such as TCE). These findings provide information that is useful for assessing microbial reductive debromination of higher brominated PBDEs to less-brominated congeners, a possible source of the more toxic congeners (e.g., penta- and tetra-BDEs) detected in the environment.

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