北黄海表层沉积物中多环芳烃的分布及其来源

Distribution and source of polycyclic aromatic hydrocarbons (PAHs) in surface sediment of the northern Yellow Sea.

在北黄海表层沉积物中用气相色谱法定量检出17种3(5环的多环芳烃(PAHs)及部分烷基菲化合物,所检测出的PAHs的总浓度在222.1(776.3ng/g之间,与其他海湾分布相比,含量相对偏低.由多环芳烃参数菲/蒽、荧蒽/芘等比值指征北黄海PAHs主要来源于化石燃料的不完全燃烧.苝在多数表层沉积物中被检出,表明陆源物质在北黄海积累,其主要来源为鸭绿江携带入海的陆源物质.

Seventeen kinds of three-ring to five-ring polycyclic aromatic hydrocarbon (PAHs) compounds in the surface sediment of the northern Yellow Sea were inspected quantitatively with GC. Concentrations of PAHs inspected and measured were 222.1~776.3ng/g. Compared with the PAHs distribution in other bays, the contents were relatively lower. From the indicators such as Pen/Anth, Fluo/Pyr, etc. the dominated source of PAHs in the northern Yellow Sea was the incomplete combustion of fossil fuel. Perylene was identified from the most surface sediments, which indicated that the substances from terrestrial source were accumulated in the northern Yellow Sea. The main source was the terrestrial substance transported from the Yalujiang estuary into the sea.