Substaintí sár- agus polafhluarailcile
Is comhdhúile ceimiceacha sintéiseacha orgánafluairín iad  substaintí sár- agus polafhluarailcile (SSPFA) (Béarla: Per- and polyfluoroalkyl substances (PFAS nó PFASs)) a bhfuil adaimh iolracha fluairín acu ceangailte le slabhra ailcile. Mar sin, tá ar a laghad earra sárfhluarailcile amháin iontu,–C n F 2n –. 
De réir na hEagraíochta um Chomhar agus Fhorbairt Eacnamaíochta (ECFE): PFASs are defined as fluorinated substances that contain at least one fully fluorinated methyl or methylene carbon atom (without any H/Cl/Br/I atom attached to it), i.e. with a few noted exceptions, any chemical with at least a perfluorinated methyl group (–CF3) or a perfluorinated methylene group (–CF2–) is a PFAS.

Truailliú 
Is substaint thocsaineach iad na SSPA, agus ag éirí uileláithreach.

Naisc sheachtracha
Cancer fears plague residents of US region polluted by ‘forever chemicals’
 Per- and Polyfluoroalkyl Substances (PFAS) at the National Toxicology Program
 Per- and Polyfluoroalkyl Substances and Your Health at the Agency for Toxic Substances and Disease Registry
 Per- and Polyfluoroalkyl Substances (PFAS) at the United States Environmental Protection Agency
 Perfluoroalkyl chemicals (PFAS) at the European Chemicals Agency
PFAS Contamination [map] in the U.S. by the Environmental Working Group

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