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中文摘要：
对珠江口水体溶解相及颗粒相多溴联苯醚（PBDEs）的时空、垂向分布及其在两相间的分配进行了初步研究．结果表明，PBDEs在水体中的分布随采样季节的变化显示出明显的差异性．5月以冲淡海水为主的水体PBDEs浓度明显低于10月以新输入河流淡水为主的水体PBDEs浓度．10月样品的空间分布表明河流径流输入是伶仃洋内PBDEs的主要来源，其中溶解有机碳含量可能是水体中PBDEs含量的主要控制因素．5月冲淡海水PBDEs的空间和垂向分布相对均一，颗粒物含量是水体中PBDEs含量的主要控制因素．溶解有机碳含量、颗粒态有机碳含量对PBDE在两相中的分布与分配都有一定作用，但随水体性质不同存在一定差异．
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