SEARCH Articles Figures Tables Perfluoroalkyl Perfluoroalkyl acids degradation Perfluoroalkyl acids sources Perfluoroalkyl carboxylic acids Perfluoroalkyl phosphinic acids Perfluoroalkyl phosphonic acids Perfluoroalkyl sulfonic acids/sulfonates Perfluoroalkylated amino acids Perfluoroalkylation Perfluoroalkylation with perfluorocarboxylic acid