Per- and polyfluoroalkyl substances (PFAS) are a group of manufactured chemicals that are resistant to degradation and thus persistent in the environment. The presence, uptake, and accumulation of PFAS is dependent upon the physiochemical properties of the PFAS and matrix, as well as the environmental conditions since the time of release. The objective of this study was to measure the extent of PFAS contamination in surface water and sediment from nine vulnerable aquatic systems throughout Florida. PFAS were detected at all sampling locations with sediment exhibiting greater PFAS concentrations when compared to surface water. At most locations, elevated concentrations of PFAS were identified around areas of increased human activity, such as airports, military bases, and wastewater effluents. The results from the present study highlight the ubiquitous presence of PFAS in vital Florida waterways and filled an important gap in understanding the distribution of PFAS in dynamic, yet vulnerable, aquatic environments.

全氟和多氟烷基物质 (PFAS) 是一组耐降解并因此在环境中持久存在的人造化学品。PFAS 的存在、摄取和积累取决于 PFAS 和基质的物理化学特性，以及自释放时起的环境条件。本研究的目的是测量佛罗里达州九个脆弱水生系统的地表水和沉积物中 PFAS 污染的程度。与地表水相比，沉积物中 PFAS 浓度更高的所有采样点均检测到 PFAS。在大多数地点，在人类活动增加的区域周围发现了高浓度的 PFAS，例如机场、军事基地和废水排放。