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. Author manuscript; available in PMC: 2022 Jan 12.
Published in final edited form as: Environ Sci Technol Lett. 2021 Jan 12;8(1):59–65. doi: 10.1021/acs.estlett.0c00798

Table 1.

Fourteen Most Abundant PFAS Identified Using HRMSa in Contemporary AFFFb()

Formula PFAS (CASRNc) Patent year for AFFF used Year of first detection in environmente
1 C15H18F13NO5S2 graphic file with name nihms-1663779-t0003.jpg NA 201833
2 C14H18F13NOS graphic file with name nihms-1663779-t0004.jpg 198334 ND
3 C15H18F13NO4S2 graphic file with name nihms-1663779-t0005.jpg NA 201315
4 C14H15F13N2O2S Exact structure undetermined
5 C11H10F13NOS graphic file with name nihms-1663779-t0006.jpg 197735 ND
6 C8H5F13O3S graphic file with name nihms-1663779-t0007.jpg 197236 200437
7 C15H19F13N2O4S graphic file with name nihms-1663779-t0008.jpg 197138 201315
8 C13H17F13N2O3S graphic file with name nihms-1663779-t0009.jpg 198139 201740
9 C16H23F13N2O6S2 graphic file with name nihms-1663779-t0010.jpg 198041 ND
10 C14H19F13NO2S graphic file with name nihms-1663779-t0011.jpg NA 201743
11 C20H25F13N4O4S Exact structure undetermined
12 C16H22F13NO5S Exact structure undetermined
13 C17H20F13N3O3S Exact structure undetermined
14 C23H30F13N5O5S Exact structure undetermined
a

HRMS = high-resolution mass spectrometry.

b

AFFF = aqueous film-forming foam.

c

CASRN = Registered Chemical Abstracts Service Number.

d

NA = No patent for use in AFFF in SciFindern database.

e

ND = Not detected in environmental media in studies found in SciFindern database.