全氟化合物前体物氟调醇的检测方法、环境分布及转化研究进展

Research progress on the detection methods,environmental distribution and transformation of perfluorinated compounds' precursors fluorotelomer alcohols

全氟辛酸(Perfluorooctanoic acid,PFOA)等全氟羧酸类物质(Perfluoroalkyl carboxylic acids,PFCAs)潜在的持久性、生物累积性、毒性和在环境中的广泛分布,已经引起环境研究者的广泛关注.前期研究表明除了PFCAs的直接排放,其前体物转化也是环境中PFCAs污染的主要来源.氟调醇(Fluorotelomer alcohols,FTOHs)是PFCAs重要的前体物之一.本文对FTOHs的检测方法以及不同环境介质中的环境分布进行了综述,同时重点介绍了FTOHs转化为PFCAs的机制,指出了污水处理系统中FTOHs研究的重要性,并对未来污水处理系统中FTOHs的研究进行展望.

Perfluorooctanoic acid（ PFOA） and other perfluoroalkyl carboxylic acids（ PFCAs） have recently attracted a great deal of attentions because of their potential persistence,bioaccumulation,toxicity and global existence in the environment. In addition to direct emission,transformations of their precursors is also considered as a major source of PFCAs in the environment. Fluorotelemer alcohols（ FTOHs） are one major class of PFCAs precursors. This article reviews recent research progress on the detection methods of FTOHs and their environmental distribution. Transformation mechanisms of FTOHs are discussed in more details. Furthermore,this article also highlights the importance and prospects of the research on FTOHs in sewage treatment system.