Chemical and toxicological characterisation of PBDFs from photolytic decomposition of decaBDE in toluene

PBDD/F impurities in some commercial deca-BDE

“…Laboratory experiments have demonstrated the formation of PBDD/Fs through a simple intra-molecular elimination of Br 2 or HBr during the pyrolysis PBDEs Weber and Kuch, 2003;Hagberg et al, 2006). Our study indicated that PBDD/ Fs could also be formed in the production process of DBDE.…”

“…Because PBDD/Fs can be formed from the photolysis of DBDE (Hagberg et al, 2006), it is necessary to separate DBDE from PBDD/Fs. A new analytical method was successfully used in this study to separate trace PBDD/Fs from DBDE, which was helpful to lower the detection limits of PBDD/Fs and to avoid the influence of the unwanted formation of PBDD/Fs from the thermodegradation of DBDE in the capillary chromatography column during determination.…”

Zinc dust-mediated reductive degradation of decabromodiphenyl ether

“…Photodegradation in solution is faster than photodegradation of PBDEs adsorbed on solids such as on sand or silica gel. In addition, it has been shown that the photolytic decomposition of deca-BDE in toluene upon irradiation with UV light can lead up to 27 mono to hexasubstituted polybrominated dibenzofurans (PBDFs) (20). The electrochemical reductive behavior of deca-BDE has also been studied using platinum black electrodes.…”

BDE-209 in the Australian Environment: Desktop review

“…The widespread use of PBDEs in items commonly found in homes leads to contamination of the indoor environment, particularly of household dust (12,13). Once in the environment, PBDEs can debrominate to form lower BDE congeners and can also form other products, such as bromophenols, furans and dioxins (14)(15)(16)(17)(18)(19). The relevance of debromination to human exposure may be most pronounced for BDE-209, the dominant congener in dust (20,21).…”