微生物对高分子量多环芳烃苯并芘的降解研究

苯并[a]芘（BaP）是一种由5个苯环组成的分布广泛、致癌性极强的多环芳烃，是目前国内外环境监测的重要指标之一。研究苯并[a]芘在环境中的产生、迁移、转化、降解及毒理作用，判断多环芳烃的污染情况。本文综述了苯并[a]芘的来源与分布，以及微生物对苯并[a]芘的代谢途径，并对该领域的研究做了展望，希望可以为相关工作的进一步开展提供依据。

Study on Microbial Degradation of High Molecular Weight PAHs-Benzo (a) Pyrene (BaP)

Benzo（a）Pyrene （BaP）,which is composed of five benzene rings and has strong carcinogenicity, is a kind of wide spreading polycyclic aromatic hydrocarbon. It is one of the important indexes of environmental monito- ring all over the world. Through studying of its producing, removing, degradation and transformation in the environ- ment, the polluted situation of polycyclic aromatic hydrocarbons can be judged. In this article, the source and distri- bution of benzo （a） pyrene in the environment were reviewed, and cussed. Research in this filed was prospected, it would provide the its microbial degradation mechanisms were dis- basis for further dlevelopment of related work.