Survey on PFAS (fluorinated substances)

Forever chemicals (PFAS) are a family of greaseproof, waterproof and nonstick industrial chemicals used in hundreds of consumer products, including cosmetics, food packaging, and textiles. PFAS are also highly persistent synthetic chemicals, some of which have been associated with cancer, developmental toxicity, immunotoxicity, and other health effects. 

Beyond a few well-studied compounds such as PFOS and PFOA as well as some longer-chain analogues, little is known about most PFASs, including their chemical structures, properties, and toxicological profiles. Research undertaken to date however indicate that short-chained PFASs can also result in adverse human health and environmental effects, while higher amounts could be needed to achieve equivalent surfactant action.