Table 2.

Summary of SHOW results for all PFAS analytes

Analyte	Abbreviation	CAS-RNb	Detection Limit	# positive SHOW results	% positive results	Weighted Geometric Mean	Min result	Max Result
Perfluoro-n-butanesulfonic acid	PFBS	375-73-5	0.022	78	12.8926	0.0708	0.022	0.158
Perfluoropentanesulfonic acid	PFPeS	2706-91-4	0.015	351	58.0165	0.074	0.015	0.523
Perfluoro-n-hexanesulfonic acid	PFHxS	355-46-4	0.028	599	99.0083	1.138	0.033	30
Perfluoro-n-heptanesulfonic acid	PFHpS	375-92-8	0.027	583	96.3636	0.168	0.027	2.58
Perfluoro-n-octanesulfonic acid	PFOS	1763-23-1	0.036	602	99.5041	4.513	0.056	32.9
Perfluorononanesulfonic acid	PFNS	68259-12-1	0.018	1	0.16529	0.071	0.021	0.021
Perfluoro-n-decanesulfonic acid	PFDS	335-77-3	0.049	16	2.64463	0.071	0.05	0.188
Perfluorooctanesulfonamide-methyl	FOSA	754-91-6	0.029	1	0.16529	0.071	0.055	0.055
perfluorooctanesulfonamide-ethyl	NMeFOSA	31506-32-8	0.246	0	0	N/A	N/A	N/A
perfluorooctanesulfonamide-methyl	NEtFOSA	4151-50-2	0.064	3	0.5	0.071	0.085	0.102
perfluorooctanesulfonamido acetic acid-ethyl	NMeFOSAA	2355-31-9	0.145	294	48.6	0.137	0.147	2.8
perfluorooctanesulfonamido acetic acid-Methyl	NEtFOSAA	2991-50-6	0.184	13	2.15	0.073	0.195	2.02
perfluorooctanesulfonamido ethanol	N-MeFOSE	24448-09-7	0.099	1	0.17	0.071	0.128	0.128
perfluorooctanesulfonamido ethanol	N-EtFOSE	1691-99-2	0.139	0	0	N/A	N/A	N/A
4:2 Fluorotelomer sulfonic acid	4:2 FTSA	757124-72-4	0.067	50	8.26	0.072	0.066	0.151
6:2 Fluorotelomer sulfonic acid	6:2 FTSA	27619-97-2	0.149	0	0	N/A	N/A	N/A
8:2 Fluorotelomer sulfonic acid	8:2 FTSA	39108-34-4	0.101	26	4.3	0.072	0.102	0.227
10:2 Fluorotelomer sulfonic acid	10:2 FTSA	120226-60-0	0.081	33	5.45	0.071	0.082	0.122
Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid	9Cl-PF3ONS	756426-58-1	0.009	252	41.65	0.071	0.009	0.293
Perfluoro-n-butanoic acid	PFBA	375-22-4	0.039	173	28.6	0.074	0.039	0.546
Perfluoro-n-pentanoic acid	PFPeA	2706-90-3	0.015	39	6.45	0.072	0.016	1.11
Perfluoro-n-hexanoic acid	PFHxA	307-24-4	0.043	2	0.33	0.071	0.046	0.071
Perfluoro-n-heptanoic acid	PFHpA	375-85-9	0.031	352	58.18	0.075	0.031	2.85
Perfluoro-n-octanoic acid	PFOA	335-67-1	0.025	603	99.67	1.196	0.038	19.1
Perfluoro-n-nonanoic acid	PFNA	375-95-1	0.021	601	99.34	0.452	0.022	12
Perfluoro-n-decanoic acid	PFDA	335-76-2	0.024	598	98.84	0.142	0.024	4.51
Perfluoro-n-undecanoic acid	PFUnDA	2058-94-8	0.042	460	76.03	0.094	0.042	1.36
Perfluoro-n-dodecanoic acid	PFDoA	307-55-1	0.053	23	3.8	0.071	0.057	0.295
Perfluoro-n-tridecanoic acid	PFTriA	72629-94-8	0.391	0	0	N/A	N/A	N/A
Perfluoro-n-tetradecanoic acid	PFTeA	376-06-7	0.032	2	0.33	0.071	0.035	0.041
Perfluoro-n-hexadecanoic acid	PFHxDA	67905-19-5	0.085	1	0.17	0.071	0.097	0.097
Perfluoro-n-octadecanoic acid	PFODA	16517-11-6	0.164	0	0	N/A	N/A	N/A
4,8-Dioxa-3Hperfluorononanoic acid	DONA	919005-14-4	0.012	0	0	N/A	N/A	N/A
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid	11Cl-PF3OUdS	763051-92-9	0.011	2	0.33	0.071	0.13	0.14
6:2 di-subs. polyfluoroalkyl phosphate.	6:2 diPAP	57677-95-9	0.077	23	3.8	0.073	0.078	0.451
8:2 di-subs. polyfluoroalkyl phosphate.	8:2 diPAP	678-41-1	0.134	3	0.5	0.071	0.254	0.296
Perfluoro-2-methoxypropanoic acid.	PFMPA	377-73-1	0.019	0	0	N/A	N/A	N/A
Perfluoro-2-methoxybutanoic acid.	PFMBA	863090-89-5	0.017	0	0	N/A	N/A	N/A

Highlighted rows indicate inclusion in both SHOW and NHANES analyses. Compounds with percentages of positive results less than 15% in SHOW were not included in comparisons as we are unable to draw reliable conclusions