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. 2017 Mar 31;22(1):6–14. doi: 10.6065/apem.2017.22.1.6

Fig. 1. Structures of major perfluoralkyl substances. PFBA, perfluorobutanoic acid; PFPeA, perfluoropentanoic acid; PFHxS, perfluorohexane sulfonic acid; PFHpA, perfluoroheptanoic acid; PFOA, perfluorooctanoic acid; PFNA, perfluorononanoic acid; PFDA, perfluorodecanoic acid; PFDoDA, perfluorododecanoic acid; PFTrDA, perfluorotridecanoic acid; PFTeDA, perfluorotetradecanoic acid; PFBS, perfluorobutane sulfonic acid; PFOS, perfluorooctane sulfonic acid; PFDS, perfluorodecane sulfonic acid.

Fig. 1