Introduction
摘要
Per- and polyfluoroalkyl substances (PFAS) are a group of synthetic chemicals which contain aliphatic carbon atoms where hydrogen atoms have been replaced by fluorine atoms. PFAS can include both, perfluoroalkyl compounds (all hydrogen atoms on the carbon chain are replaced by fluorine atoms) and polyfluoroalkyl compounds (at least one but not all hydrogen atoms are replaced by fluorine atoms).