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环境化学  2015 

香港内后海湾拉姆萨尔湿地表层沉积物中多环芳烃(PAHs)的分布及来源解析

Keywords: 多环芳烃,沉积物,红树林,拉姆萨尔湿地

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Abstract:

对香港内后海湾拉姆萨尔湿地红树林表层沉积物中多环芳烃的分布特征进行了研究.依照采样区周边环境特征布设4个区域(SZ、SP、MF和M分别代表深圳河、山贝河、泥滩和红树林区),4个区域表层沉积物中15种美国环保局优先控制的多环芳烃浓度总量介于161.7—386.3ng·g-1.平均值为210.2ng·g-1,红树林区域沉积物中总量最高(386.3ng·g-1),而泥滩内部区域沉积物中总量最低(161.7ng·g-1).对比其时空分布,表明这些化合物主要来自于深圳河和香港的山贝河,但其含量还不会对研究区的生态构成威胁.

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