全氟辛烷磺化物及其环境问题

全氟辛烷磺化物(PFOS)是全氟化合物(PFCS)的代表物,以PFOS为原料可以生产许多用途广泛的PFOS相关物质,并且在环境中都能降解生成PFOS.PFOS是一种新型的持久性有机污染物(POPs),已经成为环境科学研究的热点问题.主要从物理化学性质、毒性、环境及人体暴露水平等方面对PFOS进行了综述,并将中国有关的现有数据与其他国家进行了比较.研究表明,中国人体、水体均存在着大范围的以PFOS为主的PFCS污染.

Perfluorooctane sulfonate and related environmental problems

Perfluorooctane sulfonate (PFOS) is a typical perfluorooctane compounds; it is an intermediate in the production of PFOS-related chemicals, most of which are degradable to PFOS in the environment. As a newly identified persistent organic pollutant, PFOS has become a subject of many recent investigations.The physicochemical properties, environmental concerns, exposure and toxicity of PFOS as well as its presence in many countries are reviewed in this paper. PFOS in human and water streams in some parts of China have reached a potentially harmful level. Additional research on PFOS and using substitute materials to prevent its creation are recommended.