Occurrence, spatial distribution, and ecological risks of typical hydroxylated polybrominated diphenyl ethers in surface sediments from a large freshwater lake of China

2017 ◽  
Vol 24 (6) ◽  
pp. 5773-5780 ◽  
Author(s):  
Dan Liu ◽  
Sheng-min Wu ◽  
Qin Zhang ◽  
Min Guo ◽  
Jie Cheng ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Polybrominated Diphenyl Ethers ◽  
Surface Sediments ◽  
Freshwater Lake ◽  
Ecological Risks ◽  
Diphenyl Ethers

scholarly journals Methoxylated and hydroxylated polybrominated diphenyl ethers in surface sediments from the southern Yellow Sea: spatial distribution and potential producers

2015 ◽  
Vol 12 (3) ◽  
pp. 366 ◽  
Author(s):  
Ying Fan ◽  
Jing Lan ◽  
Jiaokai Wang ◽  
Zongshan Zhao ◽  
Meixun Zhao ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Yellow Sea ◽  
Polybrominated Diphenyl Ethers ◽  
Surface Sediments ◽  
Dry Weight ◽  
Marine Phytoplankton ◽  
Southern Yellow Sea ◽  
Terrestrial Organic Matter ◽  
The Southern Yellow Sea ◽  
Diphenyl Ethers

Environmental context Methoxylated and hydroxylated polybrominated diphenyl ethers are of increasing concern owing to their global distribution and potential ecological risks. We investigated the spatial distribution and sources of these brominated compounds in surface sediments from the southern Yellow Sea, China. The results suggest that marine phytoplankton may be the potential producers of these compounds, thereby providing new insights into their occurrence and provenance in marine environments. Abstract Methoxylated polybrominated diphenyl ethers (MeO-PBDEs) and hydroxylated polybrominated diphenyl ethers (OH-PBDEs) have recently caused worldwide concern; however, there have been very limited studies on their presence in marine sediments. In the present study, MeO-PBDEs, OH-PBDEs and phytoplankton biomarkers were determined in surface sediments from the southern Yellow Sea. MeO-PBDEs and OH-PBDEs are ubiquitous in southern Yellow Sea sediments, with total contents ranging from 43.0 to 571.4pgg–1 dry weight. High contents of these compounds mainly concentrated in the central southern Yellow Sea basin, and their spatial distributions generally presented a seaward-increasing trend. By comparing with total organic carbon and terrestrial organic matter contributions in sediments, these compounds were inferred to originate mainly from marine production rather than from terrigenous inputs. Statistical analysis shows that there are significant correlations between MeO-PBDEs, OH-PBDEs and phytoplankton biomarkers, indicating that MeO-PBDEs and OH-PBDEs are mainly natural compounds, and the phytoplankton are likely to be their potential producers in the southern Yellow Sea, especially for dinosterol.

scholarly journals Concentration Levels and Ecological Risks of Persistent Organic Pollutants in the Surface Sediments of Tianjin Coastal Area, China

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Xiaoxia Lu ◽  
Chaoqi Chen ◽  
Shu Zhang ◽  
Zhen Hou ◽  
Junjun Yang
Keyword(s):  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Coastal Area ◽  
Polybrominated Diphenyl Ethers ◽  
Ecological Risks ◽  
Diphenyl Ethers ◽  
Polycyclic Aromatic ◽  
Probable Effect ◽  
Total Concentrations ◽  
Concentration Levels

Sediments were sampled from different surface water bodies in Tianjin coastal area, China, and persistent organic pollutants (POPs) including polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) were measured using GC/MS or GC/ECD. The purposes were to investigate the concentration levels of the POPs and to assess their ecological risks. The results showed that all the 16 priority PAHs were detected from the 10 sediments sampled with the total concentrations of the 16 PAHs ranging from 274.06 μg/kg to 2656.65 μg/kg, while the concentrations of the halogenated POPs were generally low except in the Dagu waste discharging river where the total concentrations of 24 OCPs, 35 PCBs, and 14 PBDEs were 3103.36 μg/kg, 87.31 μg/kg, and 13.88 μg/kg, respectively. In the studied sediments, PAHs exhibited risks to benthonic organisms; particularly the concentrations of naphthalene and/or acenaphthene exceeded their probable effect concentrations in several locations. In comparison, only in the Dagu waste discharging river, OCPs exhibited risks with the concentrations of heptachlor epoxide and lindane exceeding their probable effect concentrations. PCBs and PBDEs posed rare risks in the studied area.

Distribution of polybrominated diphenyl ethers in the surface sediments of the Taihu Lake, China

Chemosphere ◽  
2012 ◽  
Vol 88 (11) ◽  
pp. 1375-1382 ◽  
Author(s):  
Peng Zhou ◽  
Kuangfei Lin ◽  
Xiaoyu Zhou ◽  
Wei Zhang ◽  
Kai Huang ◽  
...  
Keyword(s):  
Polybrominated Diphenyl Ethers ◽  
Surface Sediments ◽  
Taihu Lake ◽  
Diphenyl Ethers

Distribution of polybrominated diphenyl ethers and decabromodiphenylethane in surface sediments from Fuhe River and Baiyangdian Lake, North China

2010 ◽  
Vol 22 (12) ◽  
pp. 1833-1839 ◽  
Author(s):  
Guocheng Hu ◽  
Zhencheng Xu ◽  
Jiayin Dai ◽  
Bixian Mai ◽  
Hong Cao ◽  
...  
Keyword(s):  
Polybrominated Diphenyl Ethers ◽  
North China ◽  
Surface Sediments ◽  
Baiyangdian Lake ◽  
Diphenyl Ethers
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