Back to Search
Start Over
Hydroxylated polybrominated diphenyl ethers (OH-PBDEs) in biosolids from municipal wastewater treatment plants in China
- Source :
-
Chemosphere . Mar2013, Vol. 90 Issue 9, p2388-2395. 8p. - Publication Year :
- 2013
-
Abstract
- Abstract: Hydroxylated polybrominated diphenyl ethers (OH-PBDEs) along with methoxylated polybrominated diphenyl ethers (MeO-PBDEs) have been frequently identified as natural compounds in marine environment and also assumed as metabolites of PBDEs. In the present study, nine OH-PBDE, nine MeO-PBDE and 10 PBDE congeners were studied in the sewage sludge collected from 36 municipal wastewater treatment plants (WWTPs) in 27 cities of China. The results suggest that OH-PBDEs and PBDEs are ubiquitous in sewage sludge in China, however, methoxylated PBDEs were not detectable. Composition profiles of detected OH-PBDE congeners were different depending on the sampling location. ΣOH-PBDEs in WWTPs sludge ranged from 0.04 to 2.24ngg−1 dry weight (mean: 0.35ngg−1 dry weight). The total amount of the two most prominent congeners (6-OH-BDE-47+2′-OH-BDE-68) accounted for about 53.3–100% of the sum of all six identified congeners. A significant linear relationship was found between 6-OH-BDE-47 and 2′-OH-BDE-68. A distinct geographical distribution of ΣOH-PBDEs was observed with greater concentrations of OH-PBDEs at coastal areas than inland regions in China. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00456535
- Volume :
- 90
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Chemosphere
- Publication Type :
- Academic Journal
- Accession number :
- 85153247
- Full Text :
- https://doi.org/10.1016/j.chemosphere.2012.10.034