Polybrominated diphenyl ethers: Causes for concern and knowledge gaps regarding environmental distribution, fate and toxicity

Separation of polybrominated diphenyl ethers in fish for compound-specific stable carbon isotope analysis

“…The other explanation is that significant amounts of the less brominated BDE congeners may be the result of biotic or abiotic debromination of more highly brominated congeners (Ross et al, 2009). In fact, a large number of studies have demonstrated the debromination of PBDE congeners in biotic and abiotic matrices (Vonderheide et al, 2008). The debromination occurring in biota is a confounding factor in the understanding of the bioaccumulation behavior of individual PBDE congeners.…”

Role of Sorbent Surface Functionalities, Partition and Microporosity in 2, 2 ́, 4, 4 ́-Tetrabromodiphenyl Ether Sorption onto Biochars in a Single-Solute System

“…The sorption kinetics showed that fast sorption dominated the sorption process, and the fast compartments contributed mainly to the initial linear sorption and the slow sorption compartments followed nonlinear sorption. The sorption isotherm experiment showed the following: (1) for BC300, partitioning dominated the whole sorption process; (2) for BC500, in the lower concentration range, micropore filling was the main adsorption mechanism, but when the concentration increased, partitioning dominated the sorption process; and (3) in the adsorption process for BC700, partitioning and micropore-filling sorption were included, but micropore-filling sorption dominated the sorption process. This research can provide a meaningful information to understanding PBDE (BDE-47) sorption mechanisms on biochars and the in- …”

“…Due to their high bioaccumulation effect and endocrine disturbance characteristics, tetra-, penta-, hexa-, and hepta-BDE had been included in Article 3 and Annex A of the Stockholm convention in May 2009 [2,3]. 2, 2′, 4,4′-tetrabromo diphenyl ether (BDE-47), which is the congeners of PBDEs, is frequently detected in various environmental compartments.…”

Retardantes de chama bromados: uma revisão

“…Devido às semelhanças estruturais entre alguns PBDEs e os hormônios receptores da tireóide pode haver uma possível competição entre eles, causando alterações nas funções da tireóide, o que pode levar a mudanças das taxas metabólicas, síntese de proteína e desenvolvimento celular. 74 A formação de tumores e câncer foi também associada à exposição a PBDEs. 74 Estudo feito com homens e mulheres, com 60 anos em média, relacionou a dificuldade na fala e de memória com altos níveis de PCBs e PBDEs no sangue.…”

“…74 A formação de tumores e câncer foi também associada à exposição a PBDEs. 74 Estudo feito com homens e mulheres, com 60 anos em média, relacionou a dificuldade na fala e de memória com altos níveis de PCBs e PBDEs no sangue. 75 …”