PMID- 20575536
OWN - NLM
STAT- MEDLINE
DCOM- 20100921
LR  - 20161125
IS  - 0013-936X (Print)
IS  - 0013-936X (Linking)
VI  - 44
IP  - 14
DP  - 2010 Jul 15
TI  - Trophodynamics of hexabromocyclododecanes and several other non-PBDE brominated 
      flame retardants in a freshwater food web.
PG  - 5490-5
LID - 10.1021/es101300t [doi]
AB  - Several currently used non-polybrominated diphenyl ether (PBDE) brominated flame 
      retardants (BFRs), including hexabromocyclododecanes (HBCDs), 
      1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE), decabromodiphenyl ethane (DBDPE), 
      hexabromobenzene (HBB), pentabromoethylbenzene (PBEB), and pentabromotoluene 
      (PBT), are examined in the components of a freshwater food web from an electronic 
      waste recycling site, South China. All these BFRs are detectable in the food web, 
      with average concentrations of 13.9-868, 1.71-518, < 3.8-338, 197-3099, 
      3.98-25.6, and 1.20-3.60 ng/g lipid wt for HBCDs, BTBPE, DBDPE, HBB, PBEB, and 
      PBT, respectively. Food web magnification is observed for (+)-alpha-, (-)-alpha-, 
      (+/-)-alpha-, and total HBCDs, and HBB, with trophic magnification factors (TMFs) 
      of 2.22, 2.18, 2.19, 1.82, and 1.46, respectively; whereas there is trophic 
      dilution of BTBPE and PBT through the food web. The TMFs for (+)-alpha-, 
      (-)-alpha-, and (+/-)-alpha-HBCDs are comparable to those of PBDEs detected 
      previously in the same food web. Biota samples show a shift from gamma- toward 
      alpha-HBCD compared with the suspended particles, sediment, and HBCD technical 
      mixtures, with a significant increase of alpha-HBCD on ascending trophic levels. 
      Except for alpha-HBCD in suspended particles and sediment, all the HBCD 
      enantiomers detected are nonracemic in the environmental matrix. In biota, 
      nonracemic residues of alpha-HBCD were observed in mud carp and crucian carp; 
      beta-HBCD in prawn, mud carp, and crucian carp; and gamma-HBCD in water snake, 
      with preferences for (+)-alpha-, (-)-beta-, and (+)-gamma-HBCDs.
FAU - Wu, Jiang-Ping
AU  - Wu JP
AD  - Research Center for Environmental Engineering & Management, Graduate School at 
      Shenzhen, Tsinghua University, Shenzhen 518055, China.
FAU - Guan, Yun-Tao
AU  - Guan YT
FAU - Zhang, Ying
AU  - Zhang Y
FAU - Luo, Xiao-Jun
AU  - Luo XJ
FAU - Zhi, Hui
AU  - Zhi H
FAU - Chen, She-Jun
AU  - Chen SJ
FAU - Mai, Bi-Xian
AU  - Mai BX
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Flame Retardants)
RN  - 0 (Hydrocarbons, Brominated)
RN  - 0 (Water Pollutants, Chemical)
RN  - 5I9835JO3M (hexabromocyclododecane)
SB  - IM
MH  - Animals
MH  - Flame Retardants/*analysis
MH  - *Food Chain
MH  - Fresh Water/*chemistry
MH  - Hydrocarbons, Brominated/*chemistry
MH  - Molecular Structure
MH  - Water Pollutants, Chemical/chemistry
EDAT- 2010/06/26 06:00
MHDA- 2010/09/23 06:00
CRDT- 2010/06/26 06:00
PHST- 2010/06/26 06:00 [entrez]
PHST- 2010/06/26 06:00 [pubmed]
PHST- 2010/09/23 06:00 [medline]
AID - 10.1021/es101300t [doi]
PST - ppublish
SO  - Environ Sci Technol. 2010 Jul 15;44(14):5490-5. doi: 10.1021/es101300t.