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An Overview of Potential Alternatives for the Multiple Uses of Per- and Polyfluoroalkyl Substances

生化工程 化学 环境科学 环境化学 工程类
作者
Romain Figuière,Luc T. Miaz,Eleni Savvidou,Ian T. Cousins
出处
期刊:Environmental Science & Technology [American Chemical Society]
标识
DOI:10.1021/acs.est.4c09088
摘要

Per- and polyfluoroalkyl substances (PFAS) are used in a wide range of different industrial and consumer applications. However, due to their extreme environmental persistence and their impacts on human and ecosystem health, PFAS have been subject to many regulatory activities, including initiatives to incentivize industry to transition toward PFAS-free alternatives. Although efforts have been made to map all uses of PFAS, work is still needed to provide an overview of their potential alternatives. Based on the functional substitution approach, this study develops an online database that documents all known uses of PFAS, describes the functions provided by PFAS in these uses, lists potential alternatives that can deliver equivalent or similar functions to PFAS, and evaluates the suitability of the identified alternatives to replace PFAS. Overall, the database lists 325 different applications of PFAS across 18 use categories. In total, 530 PFAS-free alternatives are identified. Based on a screening of potential concerns of the identified alternatives, their performance compared to PFAS, and their availability on the market, it is concluded that potentially suitable alternatives to PFAS are available for 40 different applications. For 83 applications, no alternatives could be identified at the time of the study and should be the focus of further research activities.
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