PMID- 22324406
OWN - NLM
STAT- MEDLINE
DCOM- 20120913
LR  - 20120320
IS  - 1520-5851 (Electronic)
IS  - 0013-936X (Linking)
VI  - 46
IP  - 6
DP  - 2012 Mar 20
TI  - Emerging brominated flame retardants in the sediment of the Great Lakes.
PG  - 3119-26
LID - 10.1021/es204141p [doi]
AB  - The concentrations of 13 currently used brominated flame retardants (BFRs) were 
      analyzed in 16 sediment cores collected from the North American Great Lakes. 
      Among them, 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE), decabromodiphenyl 
      ethane (DBDPE), hexabromocyclododecane (HBCD), 
      1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane (TBECH), and 
      hexachlorocyclopentadienyl dibromocyclooctane (HCDBCO) were more frequently 
      detected than others. In general, these emerging BFRs have much lower 
      concentrations than polybromodiphenyl ethers (PBDEs) and dechloranes. Inventories 
      of the five BFRs named above, given on a logarithm basis, were found to decrease 
      linearly with the increasing latitude of the sampling locations, but with weaker 
      statistics than those previously reported for the dechloranes. Logarithm of 
      surface fluxes, on the other hand, was found to be a better parameter in 
      correlating with the longitude. With regard to time trends, the exponential 
      increases in concentrations of these BFRs, particularly DBDPE and BTBPE, in 
      recent years are particularly disturbing. The sediment concentration of DBDPE 
      doubles every 3-5 years in Lake Michigan, and approximately every 7 years in Lake 
      Ontario. The corresponding doubling times for BTBPE are about 5 and 7 years in 
      Lakes Ontario and Michigan, respectively, although declines or leveling off were 
      observed in the top sediment layers in Lake Ontario. In contrast to PCBs, PBDEs, 
      and most dechloranes, the correlations between the surface concentration of 
      emerging BFRs and the latitude or longitude of the sampling sites were not 
      strengthened by normalization of the concentration based on the organic matter 
      content of the sediment.
FAU - Yang, Ruiqiang
AU  - Yang R
AD  - School of Public Health, University of Illinois at Chicago, Chicago, Illinois 
      60612, United States.
FAU - Wei, Hua
AU  - Wei H
FAU - Guo, Jiehong
AU  - Guo J
FAU - Li, An
AU  - Li A
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20120228
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Flame Retardants)
RN  - 0 (Hydrocarbons, Brominated)
SB  - IM
MH  - Environmental Monitoring
MH  - Flame Retardants/*analysis
MH  - Geologic Sediments/*analysis
MH  - Great Lakes Region
MH  - Hydrocarbons, Brominated/*analysis
MH  - Lakes/*analysis
EDAT- 2012/02/14 06:00
MHDA- 2012/09/14 06:00
CRDT- 2012/02/14 06:00
PHST- 2012/02/14 06:00 [entrez]
PHST- 2012/02/14 06:00 [pubmed]
PHST- 2012/09/14 06:00 [medline]
AID - 10.1021/es204141p [doi]
PST - ppublish
SO  - Environ Sci Technol. 2012 Mar 20;46(6):3119-26. doi: 10.1021/es204141p. Epub 2012 
      Feb 28.