Perfluoroalkyl substances (PFAS) are a diverse group of human-made chemicals that are used in a wide range of consumer and industrial products. They are under intense scrutiny due to environmental concerns and there is a call to ban new PFASs entering the market. That said, this book is not intended to wave the banner against PFASs per se; rather it provides a balanced overview of the field, from basic synthesis through to applications, why some current PFASs are and may remain the right substance for the job, as well as addressing the challenges and alternatives.Covering organofluorine chemistry to fluoropolymers and their applications in various sectors from biomedical to agrochemical, energy and electrical industries, this book is a solid introduction to the topic and demonstrates why fluorinated products are still useful in many domains. With risk assessment and alternatives to PFASs included, it provides a considered account of both the positive applications of PFASs and the pressing environmental concerns.Suitable for academics and industrial practitioners working in the fields of organic and macromolecular chemistries, it will also appeal to end-users who want to learn about the technology, applications and elimination or recycling of such fluorinated products.