Hydroxylated polybrominated diphenyl ethers (OH-PBDEs) in biosolids from municipal wastewater treatment plants in China

Jianteng Sun, Jiyan Liu, Qian Liu, Ting Ruan, Miao Yu, Yawei Wang, Thanh Wang, Guibin Jiang

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44 Scopus citations

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.

Original languageEnglish
Pages (from-to)2388-2395
Number of pages8
JournalChemosphere
Volume90
Issue number9
DOIs
StatePublished - Mar 2013
Externally publishedYes

Keywords

  • Geographical distribution
  • MeO-PBDEs
  • OH-PBDEs
  • Sewage sludge

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