PCBs, PCNs and PBDEs in sediments and mussels from Qingdao coastal sea in the frame of current circulations and influence of sewage sludge

Pan, Jianguo; Yang, Yongliang; Xu, Qian; Chen, Dazhou; Xi, Dangpeng

doi:10.1016/j.chemosphere.2006.07.070

Cited by 73 publications

(35 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…By contrast, the other 6 plants with a high input of domestic effluent have low concentrations of ΣPCNs, ranging from 1.48 to 2.57 ng/g dw with a mean value of 2.04 ng/g dw. Compared with some other reports, these values were at the same level as the background concentrations (about 1 ng/g dw) in sediments [17][18][19] . This may indicate that point sources (industrial effluent discharges) are the most important contributors of PCNs to the sludge.…”

Section: Pcn Concentrations In Sludgesupporting

confidence: 62%

Levels and distributions of polychlorinated naphthalenes in sewage sludge of urban wastewater treatment plants

et al. 2008

View full text Add to dashboard Cite

Over seventy congeners of polychlorinated naphthalenes (PCNs) in sewage sludge of 8 urban wastewater treatment plants (WWTPs) in Beijing were analyzed by isotope dilution, and high resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS) method. The total PCN concentrations determined in the samples range from 1.48 to 28.21 ng/g dw (dry weight) with TEQ concentrations of 0.11-2.45 pg/g dw. These levels were lower than those found in other regions. DiCNs and TrCNs were the most dominant homologues of PCNs. The similar congener profiles in all the samples suggest the similarity in certain sources. Contamination from industrial input might be the most significant source of PCNs in the sludges in this study, and thermal processes such as waste incineration and coal combustion may be another source of the PCNs contamination.sewage sludge, polychlorinated naphthalenes (PCNs), high resolution gas chromatography/high resolution mass spectrometry (HRGC/

show abstract

Section: Pcn Concentrations In Sludgesupporting

confidence: 62%

Levels and distributions of polychlorinated naphthalenes in sewage sludge of urban wastewater treatment plants

et al. 2008

View full text Add to dashboard Cite

show abstract

“…The levels of PCN contamination in our study were comparable to the background concentrations in sediments in Europe and North America (about 1 ng/g dw) Lundgren, 2003). The similar levels were also found in sediments collected in Qingdao coastal sea (212-1209 ng/kg dw), Yangtze River Estuary (34.3-303 pg/g dw) and Yellow River Estuary (6.2-408 pg/g dw) (Pan et al, 2007;Guo, 2008). The possible reason for the low levels of PCNs in Chinese environment is that the commercial PCNs were never produced and they were less commercially used in China (Guo, 2008).…”

Section: Pollution Status Of Pcdd/fs Pcbs and Pcnssupporting

confidence: 53%

Dioxin-like compounds in sediments from the Daliao River Estuary of Bohai Sea: Distribution and their influencing factors

Zhao

Zhang

Fan

et al. 2011

Marine Pollution Bulletin

View full text Add to dashboard Cite

“…In the food marker-basket, fish had the highest average sum of PBDEs levels (BDE-28, 47, 99, 100, 153, 154, and 183; 460 pg/g), followed by dairy products and eggs (260 pg/g), fast food, and meat products (86 pg/g) [10]. The total concentration of PBDEs in mussels was 13.8 ng/g lipid in Qingdao coastal sea [11]. A few PBDE congeners (BDE-47, 99, 100, and 28) were found in crustacean muscles (spider crab, edible crab, velvet swimming crab, and Norway lobster) from coastal waters Brittany and Normandy (France) [12].…”

Section: Introductionmentioning

confidence: 99%

Determination of polybrominated diphenyl ethers in aquatic animal tissue using cleanup by freezing‐dispersive liquid–liquid microextraction combined with GC‐MS

Liu

Huang

et al. 2009

J of Separation Science

View full text Add to dashboard Cite

A method for the determination of polybrominated diphenyl ethers (PBDEs) in aquatic animal tissue was developed, and it is based on cleanup by freezing-dispersive liquid-liquid microextraction (DLLME) for the pretreatment of samples with fat content. Aquatic animal tissue homogenate was extracted with acetone, and then frozen in a freezer at À801C. Fat in aquatic animal tissue was isolated from the analytes, i.e. PBDE congeners dissolved in acetone and fat formed floccules at low temperature. The supernatant was extracted using the DLLME technique. Under the optimum DLLME conditions, 0.75 mL supernatant with 33 mL chlorobenzene was added into 5.0 mL pure water, and subsequently cloudy solution was formed. After centrifuging, 1.0 mL lower phase was subjected to GC-MS analysis. Recovery test was performed at fortified concentrations of 5.0-2500 mg/kg. The detection results showed that the recoveries for each target analyte ranged from 75.3 to 127.8%. The repeatability of the proposed method by spiking aquatic animal samples at 10 mg/kg for PBDEs, expressed as RSD, n 5 5, varied between 4.3 and 10.3% (n 5 5). LOD of the proposed method for aquatic animal tissue samples were between 2.4 and 4.9 mg/kg for all the analytes.

show abstract

PCBs, PCNs and PBDEs in sediments and mussels from Qingdao coastal sea in the frame of current circulations and influence of sewage sludge

Cited by 73 publications

References 24 publications

Levels and distributions of polychlorinated naphthalenes in sewage sludge of urban wastewater treatment plants

Levels and distributions of polychlorinated naphthalenes in sewage sludge of urban wastewater treatment plants

Dioxin-like compounds in sediments from the Daliao River Estuary of Bohai Sea: Distribution and their influencing factors

Determination of polybrominated diphenyl ethers in aquatic animal tissue using cleanup by freezing‐dispersive liquid–liquid microextraction combined with GC‐MS

Contact Info

Product

Resources

About