一、前言 海洋沉积物中多环芳烃的研究始于1977年。多环芳烃是现代沉积物中一种常见的微量混合成份,在全球范围内,沉积物中多环芳烃的浓度从偏远地区的几个ppb到城市和工业中心附近地区的几百个ppm(1)。我国东海沉积物中含有一些芳香度不同的多环芳烃,如(?)、甲基(?)。苯并茈、(?)、苯并(?)和晕苯等(2)。(?)是陆源物质的标志;(?)和苯并茈(苯并(a)茈和苯并(e) I. Introduction The study of polycyclic aromatic hydrocarbons in marine sediments began in 1977. Polycyclic aromatic hydrocarbons (PAHs) are a common micro-ingredient in modern sediment. Globally, PAHs in sediment range from a few ppb in remote areas to hundreds of ppm (1 in urban areas and industrial centers ). Sediments in the East China Sea contain some aromatic polycyclic aromatic hydrocarbons, such as (?), Methyl (?). Benzo ()), benzo ()) and corona benzene (2). (?) Is a marker of terrigenous substances; (?) And benzodiazepines (benzo (a) acenaphthene and benzo (e)