Diasteroisomer and enantiomer-specific profiles of hexabromocyclododecane and tetrabromobisphenol A in an aquatic environment in a highly industrialized area, South China: Vertical profile, phase partition, and bioaccumulation

Aquatic bioaccumulation and trophic transfer of tetrabromobisphenol-A flame retardant introduced from a typical e-waste recycling site

“…For fish species, the current mud carp (730 pg/g ww) and northern snakehead (350 pg/g ww) showed similar concentrations with those detected in the two species (840 and 380 pg/g ww for mud carp and northern snakehead, respectively) sampled from the same e-waste recycling site as the present study (Tang et al 2015). TBBP-A concentrations in our mud carp were also comparable to those detected in the species (mean value of 35.2 ng/g lw) from a highly industrialized area in South China (He et al 2013). However, TBBP-A concentrations in the current fish were lower than those reported in four fish species from Lake Chaohu, China (28.5-39.4 ng/g lw) which is near TBBP-A manufacturing plants (Yang et al 2012) and in fish from three locations (mean values of 1290, 980, and 790 pg/g ww) downstream from chemical factories or sewage treatment plants in Czech (Hloušková et al 2013).…”

“…Our BAFs estimated in the fish species were comparable to those (400-39800) calculated in three fish species from a river in a highly industrialized area in South China (He et al 2013), but were much higher than that (0.62) calculated in fish from English lakes (Harrad et al 2009), and those (0.53-0.84) in healthy scallops from the Yellow Sea, China (Hu et al 2015). The speciesspecific accumulation of TBBP-A and the site-specific environmental TBBP-A concentrations among these studies may account for the observed differences in BAF for TBBP-A.…”

“…Elevated levels of BFRs including TBBP-A have been reported in the environment and wildlife from e-waste recycling sites in Asia (Huang et al 2014;Matsukami et al 2015;Wang et al 2015;He et al 2013). More recently, Tang et al (2015) reported high TBBP-A concentrations in a prey fish and a predator fish from an e-waste recycling site in South China.…”

Ferrate(VI) oxidation of tetrabromobisphenol A in comparison with bisphenol A

“…Compared with BPA, TBBPA is characterized by a low to moderate water solubility, and a moderately high octanol/water partition coefficient which is dependent on ionization state at different pH solutions (Kuramochi et al, 2008). When released into the environment, TBBPA will have a tendency to partition into sediment and soil, to bind to suspended particles and to the lipid fraction of biota (He et al, 2013). Besides, humic acid (HA) and montmorillonite (MMT) are often used as the model organic and inorganic suspended particles in experiments (Templeton et al, 2008).…”

“…Therefore, it is necessary to investigate the effects of suspended particles on the fate of emerging organic micropollutants during the oxidation treatment processes. In this study, TBBPA was selected as the target compound as it is the most widely used brominated flame retardant in the world and has also been widely detected in surface water (Covaci et al, 2009;He et al, 2013). TBBPA is synthesized from BPA through bromination reaction, so they have very similar molecular structures and functional groups.…”