氧化多环芳烃在环境中污染现状的研究进展

Research progress on pollution status of oxidized polycyclic aromatic hydrocarbons in environment

氧化多环芳烃(OPAHs)是芳环上具有至少1个羰基氧的PAHs衍生物,广泛存在于环境中。氧化多环芳烃主要通过固体燃料的不完全燃烧和PAHs的转化释放到环境中,且其较稳定难降解,并发现OPAHs可能比亲代PAHs具有更强的毒性。文章阐述了水、土壤、大气中OPAHs的理化性质、来源、测定方法、毒理危害等,对今后的研究方向进行了展望,进而为该类化合物的环境污染提供相应理论参考。

Oxidized polycyclic aromatic hydrocarbons(OPAHs)are PAHs derivatives with at least one carbonyl oxygen on the aromatic ring,which widely exist in the environment.Oxidized PAHs are mainly released to the environment through incomplete combustion of solid fuels and transformation of PAHs,and they are more stable and difficult to degrade.It is found that OPAHs may be more toxic than parental PAHs.In this paper,the physical and chemical properties,sources,determination methods and toxicological hazards of OPAHs in water,soil and atmosphere were described,and the future research direction was prospected,so as to provide the corresponding theoretical reference for the environmental pollution of these compounds.