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首页> 外文期刊>Chinese science bulletin >Persistent organic pollutants PCNs and PBDEs in sediments from coastal waters of Qingdao, Shandong Peninsula
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Persistent organic pollutants PCNs and PBDEs in sediments from coastal waters of Qingdao, Shandong Peninsula

机译：山东半岛青岛沿海水域沉积物中持久性有机污染物PCN和PBDEs

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摘要

Thirty-one congeners of polychlorinated naphthalenes (PCNs) and 21 congeners of polybrominated diphenylethers(PBDEs)in surface sediments at 5 stations and one mussel sample from Qingdao coastal waters were analyzed. The maximum contents occur at the station near the Haibo River mouth. The total PCNs contents are in the range of 212-1209 pg/g dw, dominated by tri-Cl CN. The total PBDEs contents are in the range of 117-5510 pg/g dw, dominated by tri- to hexa-BrBDEs. The local sources of PCNs are likely from combustion processes such as incinerations and coal burnings. The sources of PBDEs are molecular diffusion from the materials containing them. Except for the area near the river mouth where is affected by the sewage sludges, an important source of PCNs and PBDEs in this area is believed to be the atmospheric deposition. Mussels enrich PCNs and PBDEs relative to the sediments. The total TEQs of PCNs in mussels are lower than the total TEQs of PCBs.
机译：分析了5个站点表层沉积物中的31种多氯萘（PCN）和21种多溴二苯醚（PBDEs），以及1种来自青岛沿海水域的贻贝样品。最大含量出现在海博河口附近的水电站。 PCN的总含量在212-1209 pg / g dw的范围内，以三氯化碳CN为主。多溴二苯醚的总含量在117-5510 pg / g dw的范围内，由三溴到六溴溴化二苯醚占主导。 PCN的本地来源很可能来自焚烧和燃煤等燃烧过程。多溴二苯醚的来源是从含有多溴二苯醚的材料中扩散出来的分子。除了河口附近受污水污泥影响的区域外，该区域PCN和PBDE的重要来源被认为是大气沉积。贻贝相对于沉积物丰富了PCN和PBDEs。贻贝中PCN的总TEQ低于PCBs的总TEQ。

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