开幕主题演讲PFAS的用途及其替代品本质和功能替代的应用

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 101036756.Uses of PFAS and their alternatives: applications of essentiality and functional substitutionIan CousinsStockholm University, SwedenREMTEC&EMERGINGCONTAMINANTSSUMMIT, Westminster, Colorado, US, 15thOctober 20241/46Waste hierarchyhttps://zeropm.eu/2/46What are PFAS?•Buck et al. (2011) first definition•OECD (2021):broader definition•“…the fluorinated substances that contain at least one fully fluorinated methyl or methylene carbon atom…” i.e. substances are PFAS that have at least one -CF2-or -CF3moiety in their structure•used as regulatory definition in the EU universal restriction proposal, but if PFAS are mineralizable then they are exempted •US EPA (2023) definition less broad; two connected fluorinated carbons•Many thousands of structurally diverse PFAS in use in society−polymers & non-polymers; neutral, anionic, cationic & zwitterionic; solid