[Tissue distribution and bioconcentration factors of tetrabromobisphenol A in five fishes in Lake Chaohu].

Tissue distribution and bioconcentration factors of tetrabromobisphenol A (TBBPA) in five economic fishes in Chaohu Lake were measured with SPE-HPLC. The results showed that, the average concentration of TBBPA was 4.70-11.20 ng x g(-1) (dry weight) in these fishes, in an order as White fish > Silver Carp > Bighead Carp > Common Carp > Longsnout Catfish. The highest concentration of TBBPA was found in the kidney, followed by liver and gill. The concentrations in fat and muscle were very low. Silver carp was really different from the other four fishes with the highest measured level in liver, followed by kidney and gills. In addition, the TBBPA concentration in tissues of the white fish showed positive correlation with the fish weight, especially in liver and kidney, but the trend is not significant in the back and belly tissues. The bioaccumulation factors of TBBPA for the 5 fishes were 9.56-22.64 based on the average concentration of TBBPA in water (0.52 microg x L(-1)) detected in this study, indicating insignificant bioconcentration effects of TBBPA on five fishes in Chaohu Lake.