| To investigate the environmental risks and the present pollution information of polybrominated diphenyl ethers（PBDEs） in wild fish from Dongjiang River, we collected seven kinds of fish, i.e., Lateolabrax japonicus, Tilapia, Bahaba here, Sinnibrama macrops, Liza haematocheila, Liza macrolepis, Collichthys lucidus in a south branch of this river for the analysis of PBDEs. The analysis of PBDE congeners were conducted with gas chromatography negative chemical ionization mass spectrometry（GC-NCI-MS）. The results showed the concentrations of ∑10PBDEs（BDE28, 47, 66, 100, 99, 85, 154, 153, 138, 183） were 21~363 ng·g-1.lip（lipid-normalized concentration）. The highest concentration was observed in Liza macrolepis, falling into a range of 56~168 ng·g-1.lip and with an average value of 96 ng·g-1.lip. The lowest concentration found in Bahaba here was ranged from 25 to 58 ng·g-1.lip, with the average value of 41 ng·g-1.lip. BDE47 was the dominant congener in all biota samples, with a contribution to ∑10PBDEs ranging from 41% to 77%. The correlations between the concentration of ∑10PBDEs、BDE47 and BDE100 in fish muscle and weight, length along with lipid content are various in different kinds of fish. And only in the muscular tissue of Liza macrolepis Sinnibrama macrops, can the significant correlations be observed. |
