天津入海河流沉积物中多溴联苯醚的分布特征

Distribution of Polybrominated Diphenyl Ethers(PBDEs)in River Sediments Entering the Sea in Tianjin Area

对天津入海河流沉积物中多溴联苯醚（PBDEs）进行调查研究,以了解其中PBDEs 的污染水平与分布状况.结果表明：各入海河流沉积物中Σ（PBDEs）的含量为6.18～42.79,ng/g（相对于干质量）,平均含量为14.72,ng/g（相对于干质量）,其中十溴联苯醚BDE-209 为主要同系物,占Σ（PBDEs）的比例大于94%,;污染主要来自附近工业废水排放;与世界其他地区沉积物中PBDEs含量相比,该地区PBDEs 属于低污染水平.

Sediments were collected from the rivers entering the sea in Tianjin area to investigate polybrominated diphenylethers（PBDEs）concentrations and distribution.The total concentrations of PBDEs in the sediments ranged from 6.18～42.79,ng/g（dry weight）with an average content of 14.72,ng/g（dry weight）,in which BDE-209 （Deca-BDEs） was the predominantcongener and accounted for more than 94%,.The PBDEs mainly come from industrial wastewater dischargednearby.Compared with the reported PBDEs pollution in other areas and countries,the PBDE levels belong to low pollutionaccording to this study.