| Summary: | 于2008年7~9月参加中国第3次北极科学考察航次，获得白令海、楚科奇海及加拿大海盆海域24份表层沉积物样品，系统分析了Cu、Pb、Zn、Cd、Cr、Mn、V等7种重金属元素及14种PCB的含量，测定了沉积物的粒径分布及其有机碳(TOC)与炭黑(BC)含量，研究探讨了重金属和PCBs的分布特征及二者在北冰洋区域的输入途径和控制因素。主要结果如下： 表层沉积物中PCBs含量范围为21.94–639.26pg/gdw。其中，白令海与白令海峡海域表层沉积物中ΣPCBs的含量范围为21.94–152.25pg/gdw，平均值为71.31pg/gdw；楚科奇海沉积物中ΣPCBs的含量范围为60.55–. During July-September 2008, the 3rd Chinese National Arctic Research Expedition took place. 24 surface sediment samples were collected from Bering sea, Chukchi sea and Canada Basin which were analyzed for 7 heavy metals and 14 PCBs congeners. PCBs concentrations in study area ranged from 21.94 to 639.26 pg/g dw. The ∑PCBs values are from 21.94 to 152.25 pg/g dw, 60.55 to 639.26 pg/g dw and 23.66. 学位：理学硕士 院系专业：海洋与环境学院海洋学系_海洋化学 学号：22420061152297
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