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 –. [1][2]
De réir na hEagraíochta um Chomhar agus Fhorbairt Eacnamaíochta (ECFE): [3][4]
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,[5] agus ag éirí uileláithreach.[6]
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
