PBDEs and methoxylated analogues in sediment cores from two Michigan, USA, inland lakes

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

29 Scopus Citations
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Author(s)

  • Patrick W. Bradley
  • Yi Wan
  • Paul D. Jones
  • Steve Wiseman
  • Hong Chang
  • And 3 others
  • Michael H.W. Lam
  • David T. Long
  • John P. Giesy

Detail(s)

Original languageEnglish
Pages (from-to)1236-1242
Journal / PublicationEnvironmental Toxicology and Chemistry
Volume30
Issue number6
Publication statusPublished - Jun 2011

Abstract

Polybrominated diphenyl ethers (PBDEs) have been widely studied in sediments from the North American Great Lakes; however, no studies have been conducted of occurrences of methoxylated (MeO-) PBDEs in abiotic compartments in this region. In the present study, 23 tri- to hepta-PBDEs and 12 MeO-PBDEs were analyzed in dated sediment cores collected from two inland lakes (White Lake and Muskegon Lake) in Michigan, USA. Concentrations of Σ23PBDEs ranged from 3.9×10-1 to 2.4×100 and from 9.8×10-1 to 3.9×100 ng/g dry weight in White Lake and Muskegon Lake, respectively. The historical trends of tri- to hepta-PBDEs in the two lakes were different, possibly because of different input and remediation histories. The tri- to hepta-PBDE profiles were similar in the two lakes, with BDE-47 as the predominant congener, followed by BDE-99 and BDE-183. A different temporal trend for BDE-183 was found compared with other PBDEs, which is consistent with debromination of high-brominated PBDEs during sedimentation and aging. Methoxylated-PBDEs were detected only in Muskegon Lake (3.6×10-3 to 1.2×10-1 ng/g dry wt). Methoxylated PBDEs showed different temporal trends compared with tri- to hepta-PBDEs. The differences in patterns of concentrations of MeO-PBDEs in the two lakes might be due to different aquatic communities in each lake. The occurrences of MeO-PBDEs could be the major source of hydroxylated-polybrominated diphenyl ethers (OH-PBDEs) observed in organisms collected in these freshwater systems. © 2011 SETAC.

Research Area(s)

  • Dating, Great Lakes, Methoxylated PBDE, PBDE, Sedimentation rate

Citation Format(s)

PBDEs and methoxylated analogues in sediment cores from two Michigan, USA, inland lakes. / Bradley, Patrick W.; Wan, Yi; Jones, Paul D. et al.
In: Environmental Toxicology and Chemistry, Vol. 30, No. 6, 06.2011, p. 1236-1242.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review