PBDES AND METHOXYLATED ANALOGUES IN SEDIMENT CORES FROM TWO MICHIGAN, USA, INLAND LAKES
Bradley, PW; Wan, Yi; Jones, PD; Wiseman, S; Chang, H; Lam, MHW; Long, DT; Giesy, JP
HERO ID
1928006
Reference Type
Journal Article
Year
2011
Language
English
PMID
| HERO ID | 1928006 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | PBDES AND METHOXYLATED ANALOGUES IN SEDIMENT CORES FROM TWO MICHIGAN, USA, INLAND LAKES |
| Authors | Bradley, PW; Wan, Yi; Jones, PD; Wiseman, S; Chang, H; Lam, MHW; Long, DT; Giesy, JP |
| Journal | Environmental Toxicology and Chemistry |
| Volume | 30 |
| Issue | 6 |
| Page Numbers | 1236-1242 |
| 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 Sigma(23)PB DEs ranged from 3.9 x 10(-1) to 2.4 x 10 and from 9.8 x 10(-1) to 3.9 x 10(0) 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 x 10 (-3) to 1.2 x 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. Environ. Toxicol. Chem. 2011;30:1236-1242. 2011 SETAC |
| Doi | 10.1002/etc.500 |
| Pmid | 21337611 |
| Wosid | WOS:000290825200002 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | PBDE; Methoxylated PBDE; Sedimentation rate; Great Lakes; Dating |