多环芳烃的海洋环境行为及其代谢产物的研究进展

Research Progress on the Marine Environmental Behavior and Metabolites of Polycyclic Aromatic Hydrocarbons

多环芳烃是一类广泛存在于环境中的持久性有机污染物,具有"三致"作用。环境中多环芳烃的某些不完全代谢产物同样可能具有持久性,有些甚至比母体多环芳烃的毒性更强,有可能对环境造成更大的危害。本文介绍了近年来国内外有关多环芳烃的海洋环境行为及其代谢产物毒性方面的研究进展,并重点对代谢产物的分析方法,包括高效液相色谱、气相色谱、气相色谱-质谱联用和液相色谱-质谱联用等,进行了总结,最后对该领域的研究方向进行了展望。

Polycyclic aromatic hydrocarbons （PAHs） are persistent organic pollutants （POPs） widely present in environment, which have the characteristics of toxicity, carcinogenicity and mutation. PAHs in the environment can be removed by a variety of ways, and the main way is biodegradation. But in the process of degradation, some intermediate metabolites are often generated. These partial degradation products might be more toxic than their parent compounds and are also persistent, possessing more hazardous to the environment. This paper presents recent progress on studies of marine environmental behavior of PAHs and the toxicity of their metabolites. Furthermore, we especially summarizes methods for the analysis of metabolites of PAHs, such as high performance liquid chromatography, gas chromatography, gas chromatography-mass and liquid chromatography-mass. The prosect for further research in the field is discussed as a closing remark.