Abstract:

Perfluorooctanesulfonate (PFOS) is a kind of surfactant，developed and manufactured by 3M Company，USA，and is widely used in industry and agriculture.PFOS can migrate into the air，aquatic area and soil environment media in different ways.Investigation demonstrated that PFOS was toxic and was listed as an emerging persistent organic pollutant (POP)，which can be bioaccumulated through foodchain.In 2006，the European parliament and the council passed regulations and administrative provisions of the Member States relating to restrictions on the marketing and use of certain dangerous substances and preparations (perfluorooctane sulfonates).Based on the existing data of PFOS levels from China and Asia coast areas as well as from the aquatic environment of the USA，the authors performed ecological risk assessment (ERA) of PFOS using hazard quotient method.The result showed that the ecological risk of PFOS in China and Asia water area is lower than that of US.A mathematical model is established and applied for human health risk assessment of PFOS，and the hazardous sequence of PFOS is parts of China area

Key words: perfluorooctanesulfonate (PFOS), ecological risk assessment (ERA), human health risk assessment, quotient method, mathematical model