全氟化合物（PFCs）具有持久性有机污染物特征，具有一定的毒害作用。本项目计划在实地调查采样和监测分析的基础，分析典型PFCs类污染物在城市大气沉降、水体/沉积物中的污染特性及其时空分布情况，明晰不同介质中相关全氟化合物所占比例及其主要成分等特性，分析环境因素对不同污染物污染的影响作用。另外根据大气沉降、水体及沉积物中全氟化合物污染特性及相关性，研究其在不同介质间的迁移转化规律，建立PFCs在上海地区大气沉降为主要特征的城市沉降-水体沉积物系统迁移模式的研究框架。探寻PFCs污染物的主要来源及污染类型，查明此类污染物的各种来源相对贡献，研究其污染产生过程及主要影响因素。从而为该类污染物的有效控制提供理论依据及技术支持。从而有效保障生态型城市建设。

Perfluorinated compounds (PFCs) have characteristics of persistent organic pollutants and adverse effects on organisms. The project plans to elucidate the contamination characteristics and spatial and temporal distribution of PFCs through practical survey monitoring in urban atmospheric deposition and water/sediments. Meanwhile, we will clarify the composition profile and major components of PFCs in various materials, and further analyse the effect of environmental factors on the different pollutants. According to contamination characteristics and correlations of PFCs,the project will to study the migrated and transformative rules in atmospheric deposition, water and sediments, and to establish a research framework of urban atmospheric deposition - water - sediment system migration that atmospheric deposition as the main feature in Shanghai area. In addition, it is necessary to understand the source, the relative contribution of various sources and the influence factors for pollution process of PFCs. Consequently, the subject will provides a theoretical basis and technical support for effective control of the contaminations. Thus, we can effectively protect ecotype city construction.