Results for Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs)

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Results on page last updated: 08/07/2019

Chemical Group: Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs)

Measured in: Serum

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 1

Study Group: 100 Chinese adults living in the San Francisco Bay area
Sample Collection Date: 2016

Unweighted Results

Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Detection Frequency	Limit of Detection (LOD), wet-weight
Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	90th	Detection Frequency	Limit of Detection (LOD), wet-weight
4:2 FTS	4:2 FTS	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0120
5:3 FTCA	5:3 FTCA	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
6:2 diPAP	6:2 diPAP	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	7.3%	0.0500
6:2 FTCA	6:2 FTCA	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.250
6:2 FTS	6:2 FTS	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
6:2 FTUCA	6:2 FTUCA	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0120
6:6 PFPiA	6:6 PFPiA	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0120
6:8 PFPiA	6:8 PFPiA	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
7:3 FTCA	7:3 FTCA	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
8:2 diPAP	8:2 diPAP	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.250
8:2 FTCA	8:2 FTCA	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.500
8:2 FTS	8:2 FTS	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
8:2 FTUCA	8:2 FTUCA	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0120
8:2 PAP	8:2 PAP	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.500
Et-PFOSA-AcOH	Et-PFOSA-AcOH	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	5.2%	0.0500
Me-PFOSA-AcOH	Me-PFOSA-AcOH	NA	ng/ml	96	0.0523	0.0421	0.0650	0.0256	0.0467	0.0959	0.228	95.8%	0.0120
PFBA	PFBA	NA	ng/ml	96	*	*	*	<LOD	0.0582	0.0846	0.140	62.5%	0.0500
PFBS	PFBS	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0442
PFDA	PFDA	NA	ng/ml	96	0.477	0.406	0.559	0.281	0.453	0.739	1.49	80.2%	0.250
PFDoA	PFDoA	NA	ng/ml	96	*	*	*	<LOD	0.0540	0.0788	0.134	56.3%	0.0500
PFDS	PFDS	NA	ng/ml	96	*	*	*	<LOD	0.0104	0.0204	0.048	53.1%	0.00965
PFHpA	PFHpA	NA	ng/ml	96	*	*	*	<LOD	<LOD	0.0574	0.0868	30.2%	0.0500
PFHxA	PFHxA	NA	ng/ml	96	0.176	0.162	0.191	0.151	0.180	0.214	0.276	97.9%	0.0556
PFHxPA	PFHxPA	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
PFHxS	PFHxS	NA	ng/ml	96	0.767	0.66	0.891	0.432	0.789	1.41	1.81	100%	0.00945
PFNA	PFNA	NA	ng/ml	96	0.987	0.870	1.12	0.65	0.948	1.33	2.24	99%	0.250
PFOA	PFOA	NA	ng/ml	96	1.41	1.23	1.61	0.998	1.36	2.16	2.85	100%	0.0500
PFOPA	PFOPA	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
PFOS	PFOS	NA	ng/ml	96	6.51	5.49	7.73	3.32	6.05	11.7	19.3	100%	0.0566
PFOSA	PFOSA	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0120
PFPeA	PFPeA	NA	ng/ml	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
PFUnDA	PFUnDA	NA	ng/ml	96	0.398	0.348	0.455	0.301	0.427	0.600	0.824	100%	0.0500

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 2

Study Group: 100 Vietnamese adults living in the San Francisco Bay area
Sample Collection Date: 2017

Unweighted Results

Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Detection Frequency	Limit of Detection (LOD), wet-weight
Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	90th	Detection Frequency	Limit of Detection (LOD), wet-weight
4:2 FTS	4:2 FTS	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0120
5:3 FTCA	5:3 FTCA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	2%	0.0500
6:2 diPAP	6:2 diPAP	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	2%	0.0500
6:2 FTCA	6:2 FTCA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.250
6:2 FTS	6:2 FTS	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	3%	0.0500
6:2 FTUCA	6:2 FTUCA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0120
6:6 PFPiA	6:6 PFPiA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0100
6:8 PFPiA	6:8 PFPiA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
7:3 FTCA	7:3 FTCA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	5.1%	0.0500
8:2 diPAP	8:2 diPAP	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.250
8:2 FTCA	8:2 FTCA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.500
8:2 FTS	8:2 FTS	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
8:2 FTUCA	8:2 FTUCA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0120
8:2 PAP	8:2 PAP	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.500
Et-PFOSA-AcOH	Et-PFOSA-AcOH	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	3%	0.0500
Me-PFOSA-AcOH	Me-PFOSA-AcOH	NA	ng/ml	99	0.0342	0.0291	0.0402	0.0197	0.0282	0.0538	0.114	97%	0.0120
PFBA	PFBA	NA	ng/ml	99	0.0589	0.0531	0.0655	<LOD	0.0580	0.0736	0.0996	67.7%	0.0500
PFBS	PFBS	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	3%	0.0400
PFDA	PFDA	NA	ng/ml	99	0.559	0.490	0.636	0.393	0.541	0.823	1.28	87.9%	0.250
PFDoA	PFDoA	NA	ng/ml	99	*	*	*	<LOD	0.0135	0.0226	0.0441	52.5%	0.0500
PFDS	PFDS	NA	ng/ml	99	*	*	*	<LOD	0.0505	0.0773	0.127	59.6%	0.0100
PFHpA	PFHpA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	0.0699	20.2%	0.0500
PFHxA	PFHxA	NA	ng/ml	99	0.189	0.166	0.215	0.124	0.174	0.268	0.453	98%	0.0600
PFHxPA	PFHxPA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
PFHxS	PFHxS	NA	ng/ml	99	1.29	1.14	1.45	0.787	1.21	1.81	3.05	100%	0.0100
PFNA	PFNA	NA	ng/ml	99	1.10	0.988	1.22	0.84	1.08	1.49	2.21	99%	0.250
PFOA	PFOA	NA	ng/ml	99	1.69	1.51	1.88	1.20	1.61	2.30	3.06	100%	0.0600
PFOPA	PFOPA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
PFOS	PFOS	NA	ng/ml	99	7.47	6.38	8.75	4.17	7.00	11.5	22.9	100%	0.191
PFOSA	PFOSA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	3%	0.0100
PFPeA	PFPeA	NA	ng/ml	99	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500
PFUnDA	PFUnDA	NA	ng/ml	99	0.453	0.391	0.525	0.309	0.443	0.740	1.12	98%	0.0500

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

Study Group: 112 adults
Sample Collection Date: 2011 - 2012

Unweighted Results

Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Detection Frequency	Limit of Detection (LOD), wet-weight
Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	95th	Detection Frequency	Limit of Detection (LOD), wet-weight
Et-PFOSA-AcOH	Et-PFOSA-AcOH	NA	ng/mL	110	*	*	*	<LOD	<LOD	0.022	0.163	24.5%	0.0313 ng/mL
Me-PFOSA-AcOH	Me-PFOSA-AcOH	NA	ng/mL	110	0.174	0.142	0.213	0.0945	0.165	0.329	1.350	95.5%	0.0277 ng/mL
PFBS	PFBS	NA	ng/mL	110	*	*	*	<LOD	<LOD	<LOD	0.0680	11.8%	0.0411 ng/mL
PFDA	PFDA	NA	ng/mL	110	0.245	0.216	0.278	0.160	0.254	0.334	0.767	100%	0.0349 ng/mL
PFDoA	PFDoA	NA	ng/mL	110	0.0191	0.0166	0.0221	<LOD	0.0193	0.0303	0.0595	70.0%	0.0114 ng/mL
PFHpA	PFHpA	NA	ng/mL	110	0.0483	0.0395	0.0591	0.0246	0.0543	0.0901	0.269	87.3%	0.010 ng/mL
PFHxS	PFHxS	NA	ng/mL	110	1.43	1.19	1.73	0.917	1.52	2.43	6.87	99.1%	0.0206 ng/mL
PFNA	PFNA	NA	ng/mL	110	0.994	0.920	1.07	0.730	0.984	1.35	1.86	100%	0.0154 ng/mL
PFOA	PFOA	NA	ng/mL	110	1.97	1.76	2.19	1.36	1.99	2.92	4.70	100%	0.0087 ng/mL
PFOS	PFOS	NA	ng/mL	110	7.00	6.12	8.00	4.66	7.10	10.4	25.8	100%	0.0621 ng/mL
PFOSA	PFOSA	NA	ng/mL	110	*	*	*	<LOD	0.0254	0.0487	0.195	52.7%	0.0225 ng/mL
PFUnDA	PFUnDA	NA	ng/mL	110	0.128	0.111	0.148	0.0737	0.123	0.195	0.533	100%	0.0254 ng/mL

Project: Biomonitoring Exposures Study (BEST) - 2.Expanded

Study Group: 341 adults
Sample Collection Date: 2013

Weighted Results

Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Detection Frequency	Limit of Detection (LOD), wet-weight	Notes
Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	95th	Detection Frequency	Limit of Detection (LOD), wet-weight	Notes
Et-PFOSA-AcOH	Et-PFOSA-AcOH	NA	ng/mL	337	*	*	*	<LOD	0.00732	0.0218	0.0865	51.7%	0.00682 ng/mL	○
Me-PFOSA-AcOH	Me-PFOSA-AcOH	NA	ng/mL	337	0.120	0.106	0.136	0.0686	0.124	0.202	0.514	98.4%	0.0114 ng/mL	○
PFDA	PFDA	NA	ng/mL	337	0.162	0.146	0.180	0.0901	0.161	0.262	0.522	79.1%	0.0877 ng/mL	○
PFDoA	PFDoA	NA	ng/mL	337	*	*	*	<LOD	<LOD	<LOD	<LOD	1.4%	0.148 ng/mL	○
PFHpA	PFHpA	NA	ng/mL	337	*	*	*	<LOD	0.0189	0.0480	0.135	61.4%	0.0121 ng/mL	○
PFHxS	PFHxS	NA	ng/mL	337	1.09	0.952	1.26	0.606	1.13	1.85	4.59	99.5%	0.0538 ng/mL	○
PFNA	PFNA	NA	ng/mL	337	0.739	0.660	0.827	0.497	0.764	1.18	1.95	99.5%	0.0282 ng/mL	○
PFOA	PFOA	NA	ng/mL	337	1.42	1.26	1.60	1.04	1.63	2.34	4.07	99.5%	0.0426 ng/mL	○
PFOS	PFOS	NA	ng/mL	337	5.07	4.53	5.68	3.41	5.05	7.82	17.6	99.7%	0.0943 ng/mL	○
PFOSA	PFOSA	NA	ng/mL	337	*	*	*	<LOD	<LOD	0.0246	0.108	29.2%	0.0212 ng/mL	○
PFUnDA	PFUnDA	NA	ng/mL	337	0.0841	0.0743	0.0952	0.0447	0.0820	0.138	0.363	80.3%	0.0371 ng/mL	○

Project: California Regional Exposure Study, Los Angeles County (CARE-LA)

Study Group: 430 adults (age 18 and up) living in Los Angeles County
Sample Collection Date: 2018

Weighted Results

Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Detection Frequency	Limit of Detection (LOD), wet-weight	Notes
Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	95th	Detection Frequency	Limit of Detection (LOD), wet-weight	Notes
Et-PFOSA-AcOH	Et-PFOSA-AcOH	NA	ng/mL	425	*	*	*	<LOD	<LOD	0.0147	0.0554	35.7%	0.0115 ng/mL	▶
Me-PFOSA-AcOH	Me-PFOSA-AcOH	NA	ng/mL	425	0.0678	0.0589	0.0780	0.0396	0.0558	0.0953	0.340	100%	0.0114 ng/mL	▶
PFBS	PFBS	NA	ng/mL	425	*	*	*	<LOD	<LOD	<LOD	0.0357	5.5%	0.0303 ng/mL	▶
PFDA	PFDA	NA	ng/mL	425	*	*	*	<LOD	0.0795	0.164	0.321	62.3%	0.0560 ng/mL	▶
PFDoA	PFDoA	NA	ng/mL	425	*	*	*	<LOD	<LOD	<LOD	<LOD	0.3%	0.110 ng/mL	▶
PFHpA	PFHpA	NA	ng/mL	425	*	*	*	<LOD	0.0280	0.0447	0.0981	52.0%	0.0256 ng/mL	▶
PFHxS	PFHxS	NA	ng/mL	425	0.689	0.585	0.813	0.418	0.787	1.23	2.39	98.5%	0.0177 ng/mL	▶
PFNA	PFNA	NA	ng/mL	425	0.298	0.263	0.339	0.195	0.320	0.471	1.16	96.9%	0.0424 ng/mL	▶
PFOA	PFOA	NA	ng/mL	425	1.04	0.920	1.17	0.732	1.17	1.52	3.06	99.8%	0.0606 ng/mL	▶
PFOS	PFOS	NA	ng/mL	425	2.20	1.87	2.60	1.41	2.38	3.91	8.78	98.0%	0.0615 ng/mL	▶
PFOSA	PFOSA	NA	ng/mL	425	*	*	*	<LOD	<LOD	0.0152	0.0611	26.7%	0.0144 ng/mL	▶
PFUnDA	PFUnDA	NA	ng/mL	425	0.0721	0.0619	0.0840	0.0336	0.0735	0.136	0.350	77.6%	0.0285 ng/mL	▶

Project: California Regional Exposure Study, Region 2 (CARE-2)

Study Group: 359 adults (age 18 and up) living in Riverside, San Bernardino, Imperial, Mono, and Inyo counties
Sample Collection Date: 2019

Weighted Results

Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Detection Frequency	Limit of Detection (LOD), wet-weight	Notes
Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	95th	Detection Frequency	Limit of Detection (LOD), wet-weight	Notes
Et-PFOSA-AcOH	Et-PFOSA-AcOH	NA	ng/mL	358	*	*	*	<LOD	<LOD	<LOD	0.0312	16.4%	0.0115 ng/mL	◀
Me-PFOSA-AcOH	Me-PFOSA-AcOH	NA	ng/mL	358	0.0344	0.0298	0.0397	0.0178	0.0355	0.0580	0.204	81.2%	0.0114 ng/mL	◀
PFBS	PFBS	NA	ng/mL	357	*	*	*	<LOD	<LOD	<LOD	0.0379	9.8%	0.0303 ng/mL	▽
PFDA	PFDA	NA	ng/mL	358	*	*	*	<LOD	0.0768	0.144	0.252	63.3%	0.0560 ng/mL	◀
PFDoA	PFDoA	NA	ng/mL	358	*	*	*	<LOD	<LOD	<LOD	<LOD	0.01%	0.110 ng/mL	◀
PFHpA	PFHpA	NA	ng/mL	358	*	*	*	<LOD	<LOD	0.0536	0.101	43.6%	0.0256 ng/mL	◀
PFHxS	PFHxS	NA	ng/mL	358	0.798	0.669	0.953	0.465	0.837	1.72	3.20	99.8%	0.0177 ng/mL	◀
PFNA	PFNA	NA	ng/mL	358	0.211	0.181	0.246	0.132	0.256	0.374	0.775	89.5%	0.0424 ng/mL	◀
PFOA	PFOA	NA	ng/mL	358	0.987	0.866	1.12	0.668	1.13	1.77	2.53	98.8%	0.0606 ng/mL	◀
PFOS	PFOS	NA	ng/mL	357	2.41	2.05	2.82	1.48	2.88	4.89	7.14	98.5%	0.0615 ng/mL	▽
PFOSA	PFOSA	NA	ng/mL	358	*	*	*	<LOD	<LOD	<LOD	0.0329	14.9%	0.0144 ng/mL	◀
PFUnDA	PFUnDA	NA	ng/mL	358	*	*	*	<LOD	0.0416	0.0929	0.258	61.3%	0.0285 ng/mL	◀

Project: California Regional Exposure Study, Region 3 (CARE-3)

Study Group: 90 adults (age 18 and up) living in San Diego and Orange counties
Sample Collection Date: 2020

Study Group Subset: Adults

Unweighted Results

Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Detection Frequency	Limit of Detection (LOD), wet-weight	Notes
Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	90th	Detection Frequency	Limit of Detection (LOD), wet-weight	Notes
Et-PFOSA-AcOH	Et-PFOSA-AcOH	NA	ng/mL		*	*	*	<LOD	<LOD	<LOD	0.0250	16.9%	0.0115 ng/mL	⌂
Me-PFOSA-AcOH	Me-PFOSA-AcOH	NA	ng/mL		0.0363	0.0266	0.0494	<LOD	0.0332	0.082	0.238	65.9%	0.0114 ng/mL	⌂
PFBS	PFBS	NA	ng/mL		*	*	*	<LOD	<LOD	<LOD	<LOD	2.5%	0.0303 ng/mL	⌂
PFDA	PFDA	NA	ng/mL		0.0942	0.0802	0.111	<LOD	0.0926	0.174	0.234	67.4%	0.0560 ng/mL	⌂
PFDoA	PFDoA	NA	ng/mL		*	*	*	<LOD	<LOD	<LOD	<LOD	5.0%	0.110 ng/mL	⌂
PFHpA	PFHpA	NA	ng/mL		*	*	*	<LOD	<LOD	0.0377	0.0690	39.0%	0.0256 ng/mL	⌂
PFHxS	PFHxS	NA	ng/mL		0.670	0.517	0.868	0.393	0.796	1.33	2.69	97.8%	0.0177 ng/mL	⌂
PFNA	PFNA	NA	ng/mL		0.295	0.245	0.356	0.216	0.335	0.524	0.762	92.1%	0.0424 ng/mL	⌂
PFOA	PFOA	NA	ng/mL		0.901	0.733	1.11	0.702	1.03	1.48	2.21	95.5%	0.0606 ng/mL	⌂
PFOS	PFOS	NA	ng/mL		1.75	1.34	2.28	1.01	2.30	3.92	5.22	95.5%	0.0615 ng/mL	⌂
PFOSA	PFOSA	NA	ng/mL		*	*	*	<LOD	<LOD	<LOD	0.0328	20.2%	0.0144 ng/mL	⌂
PFUnDA	PFUnDA	NA	ng/mL		0.0804	0.066	0.098	0.0372	0.0839	0.161	0.286	80.9%	0.0285 ng/mL	⌂

Project: California Teachers Study (CTS)

Study Group: 2,869 female professional school employees
Sample Collection Date: 2011

Unweighted Results

Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Detection Frequency	Limit of Detection (LOD), wet-weight
Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	95th	Detection Frequency	Limit of Detection (LOD), wet-weight
Et-PFOSA-AcOH	EtPFOSAAcOH	NA	ng/mL	1759	0.031	0.029	0.032	0.015	0.03	0.06	0.2	84.5%	0.011
Me-PFOSA-AcOH	MePFOSAAcOH	NA	ng/mL	1759	0.2	0.19	0.21	0.1	0.2	0.41	1.3	98.4%	0.013
PFBS	PFBS	NA	ng/mL	614	*,#	*	*	<LOD	<LOD	<LOD	0.067	18.4%	0.022
PFDA	PFDA	NA	ng/mL	1759	0.22	0.21	0.23	0.15	0.23	0.35	0.67	94.7%	0.032
PFDoA	PFDoA	NA	ng/mL	1737	*	*	*	<LOD	<LOD	<LOD	0.093	10.8%	0.036
PFHpA	PFHpA	NA	ng/mL	1759	0.054	0.052	0.057	<LOD	0.054	0.11	0.28	74%	0.015
PFHxS	PFHxS	NA	ng/mL	1759	1.62	1.56	1.68	1.04	1.58	2.50	6.24	99.9%	0.012
PFNA	PFNA	NA	ng/mL	1719	0.92	0.89	0.95	0.67	0.95	1.3	2.3	99.7%	0.014
PFOA	PFOA	NA	ng/mL	1759	2.46	2.39	2.53	1.69	2.5	3.63	6.22	99.9%	0.029
PFOS	PFOS	NA	ng/mL	1759	6.8	6.56	7.04	4.57	7.14	10.9	19.5	99.8%	0.083
PFOSA	PFOSA	NA	ng/mL	1597	0.036	0.034	0.039	<LOD	0.036	0.075	0.25	74.1%	0.01
PFUnDA	PFUnDA	NA	ng/mL	1759	0.13	0.12	0.13	0.081	0.14	0.23	0.42	96.8%	0.01

Project: Firefighter Occupational Exposures (FOX) Project

Study Group: 101 Firefighters
Sample Collection Date: 2010 - 2011

Study Group Subset: Firefighters

Unweighted Results

Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Detection Frequency	Limit of detection (LOD)
Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	95th	Detection Frequency	Limit of detection (LOD)
Et-PFOSA-AcOH	EtPFOSAAcOH	NA	ng/mL	101	0.016	0.014	0.018	<LOD	0.016	0.023	0.060	65.3%	0.011
Me-PFOSA-AcOH	MePFOSAAcOH	NA	ng/mL	101	0.16	0.13	0.18	0.086	0.14	0.24	0.61	100%	0.013
PFBS	PFBS	NA	ng/mL	101	*	*	*	<LOD	<LOD	<LOD	0.020	6.9%	0.02
PFDA	PFDA	NA	ng/mL	101	0.899	0.783	1.03	0.512	0.721	1.72	2.63	100%	0.032
PFDoA	PFDoA	NA	ng/mL	101	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.040
PFHpA	PFHpA	NA	ng/mL	101	0.13	0.11	0.15	0.06	0.12	0.22	0.63	75.2%	0.059
PFHxS	PFHxS	NA	ng/mL	101	2.26	2	2.54	1.61	2.27	3.13	4.64	100%	0.012
PFNA	PFNA	NA	ng/mL	101	1.15	1.06	1.25	0.888	1.13	1.49	2.21	100%	0.075
PFOA	PFOA	NA	ng/mL	101	3.75	3.37	4.17	2.96	3.86	4.89	9.54	100%	0.301
PFOS	PFOS	NA	ng/mL	101	12.5	11.3	13.8	10.1	12.7	16.8	24.7	100%	0.083
PFOSA	PFOSA	NA	ng/mL	101	0.032	0.027	0.037	0.019	0.029	0.050	0.151	95.0%	0.009
PFUnDA	PFUnDA	NA	ng/mL	101	0.24	0.21	0.27	0.17	0.26	0.37	0.53	100%	0.010

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

Study Group: 92 pregnant women and their infants (65 mother-infant pairs and 27 pregnant women)
Sample Collection Date: 2010 - 2011

Study Group Subset: Pregnant women

Unweighted Results

Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Limit of Detection (LOD), wet-weight
Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	90th	Limit of Detection (LOD), wet-weight
Et-PFOSA-AcOH	Et-PFOSA-AcOH	NA	ng/mL	77	*	*	*	<LOD	0.012	0.021	0.026	0.011
Me-PFOSA-AcOH	Me-PFOSA-AcOH	NA	ng/mL	77	0.067	0.055	0.082	0.037	0.064	0.10	0.20	0.013
PFBS	PFBS	NA	ng/mL	77	*	*	*	<LOD	<LOD	<LOD	<LOD	0.022
PFDA	PFDA	NA	ng/mL	77	*	*	*	<LOD	<LOD	0.035	0.64	0.032
PFDoA	PFDoA	NA	ng/mL	77	*	*	*	<LOD	<LOD	<LOD	<LOD	0.036
PFHpA	PFHpA	NA	ng/mL	77	*	*	*	<LOD	<LOD	0.071	0.14	0.059
PFNA	PFNA	NA	ng/mL	77	0.733	0.621	0.865	0.504	0.791	1.11	1.74	0.075
PFOA	PFOA	NA	ng/mL	77	*	*	*	<LOD	0.474	0.811	1.25	0.30
PFOS	PFOS	NA	ng/mL	77	2.55	2.20	2.95	1.78	2.43	4.11	4.90	0.083
PFOSA	PFOSA	NA	ng/mL	77	0.019	0.016	0.022	0.012	0.017	0.026	0.049	0.01
PFUnDA	PFUnDA	NA	ng/mL	77	0.131	0.101	0.170	0.0730	0.165	0.261	0.474	0.01

Project: Measuring Analytes in Maternal Archived Samples (MAMAS) – MAMAS 1

Study Group: 460 pregnant individuals
Sample Collection Date: 2012

Study Group Subset: Subsample 2

Unweighted Results

Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Detection Frequency	Limit of Detection (LOD), wet-weight
Chemical measured	Indicates Exposure to	Adjusted for	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	95th	Detection Frequency	Limit of Detection (LOD), wet-weight
Et-PFOSA-AcOH	Et-PFOSA-AcOH	NA	ng/mL	200	*	*	*	<LOD	<LOD	0.0185	0.0288	29.0%	0.0164 ng/mL
Me-PFOSA-AcOH	Me-PFOSA-AcOH	NA	ng/mL	200	0.0446	0.0379	0.0526	0.0177	0.0373	0.091	0.361	79.5%	0.0147 ng/mL
PFDA	PFDA	NA	ng/mL	200	0.198	0.174	0.226	0.0950	0.212	0.373	0.908	83.0%	0.0652 ng/mL
PFDoA	PFDoA	NA	ng/mL	200	*	*	*	<LOD	<LOD	<LOD	0.317	8.0%	0.174 ng/mL
PFHpA	PFHpA	NA	ng/mL	200	0.0453	0.0397	0.0515	0.0220	0.0484	0.0954	0.198	83.5%	0.0149 ng/mL
PFHxS	PFHxS	NA	ng/mL	200	0.904	0.818	0.998	0.558	0.861	1.43	2.83	100%	0.0250 ng/mL
PFNA	PFNA	NA	ng/mL	200	0.647	0.596	0.703	0.442	0.644	0.952	1.74	100%	0.0302 ng/mL
PFOA	PFOA	NA	ng/mL	200	1.243	1.154	1.339	0.898	1.29	1.77	2.81	100%	0.0391 ng/mL
PFOS	PFOS	NA	ng/mL	200	4.20	3.82	4.62	2.62	4.47	6.75	12.3	100%	0.0565 ng/mL
PFOSA	PFOSA	NA	ng/mL	200	*	*	*	<LOD	<LOD	0.00661	0.0266	33.5%	0.00460 ng/mL
PFUnDA	PFUnDA	NA	ng/mL	200	0.124	0.107	0.144	0.0483	0.118	0.275	0.717	78.0%	0.0430 ng/mL

Project: Measuring Analytes in Maternal Archived Samples (MAMAS) – MAMAS 2

Study Group: 540 pregnant individuals
Sample Collection Date: 2015 - 2016

Study Group Subset: Subsample 2

Unweighted Results

Chemical measured	Indicates Exposure to	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Detection Frequency	Limit of Detection (LOD), wet-weight
Chemical measured	Indicates Exposure to	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	95th	Detection Frequency	Limit of Detection (LOD), wet-weight
4:2 FTS	4:2 FTS	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	0.0463	6.2%	0.0372 ng/mL
5:3 FTCA	5:3 FTCA	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	<LOD	1.7%	0.0500 ng/mL
6:2 diPAP	6:2 diPAP	ng/mL	277	*	*	*	<LOD	<LOD	<LOD	<LOD	2.5%	0.0645 ng/mL
6:2 FTCA	6:2 FTCA	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.250 ng/mL
6:2 FTS	6:2 FTS	ng/mL	240	*	*	*	<LOD	<LOD	<LOD	0.781	20.8%	0.188 ng/mL
6:2 FTUCA	6:2 FTUCA	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0243 ng/mL
6:6 PFPiA	6:6 PFPiA	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0429 ng/mL
7:3 FTCA	7:3 FTCA	ng/mL	291	*	*	*	<LOD	<LOD	<LOD	<LOD	4.8%	0.0622 ng/mL
8:2 diPAP	8:2 diPAP	ng/mL	291	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.250 ng/ml
8:2 FTCA	8:2 FTCA	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.250 ng/mL
8:2 FTS	8:2 FTS	ng/mL	290	*	*	*	<LOD	<LOD	<LOD	<LOD	1.4%	0.0500 ng/mL
8:2 FTUCA	8:2 FTUCA	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	<LOD	0.3%	0.0280 ng/mL
Et-PFOSA-AcOH	Et-PFOSA-AcOH	ng/mL	292	*	*	*	<LOD	<LOD	0.0179	0.0398	35.6%	0.0131 ng/mL
Me-PFOSA-AcOH	Me-PFOSA-AcOH	ng/mL	292	*	*	*	<LOD	<LOD	0.107	0.287	45.5%	0.0638 ng/mL
PFBA	PFBA	ng/mL	292	0.0577	0.0550	0.0606	<LOD	0.0594	0.0770	0.121	65.8%	0.0500 ng/mL
PFBS	PFBS	ng/mL	292	*	*	*	<LOD	<LOD	0.0119	0.0283	25.0%	0.0140 ng/mL
PFDA	PFDA	ng/mL	292	0.213	0.196	0.231	0.135	0.189	0.320	0.752	99.0%	0.0542 ng/mL
PFDoA	PFDoA	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	0.0854	16.4%	0.0500 ng/mL
PFDS	PFDS	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	0.0308	5.8%	0.0274 ng/mL
PFHpA	PFHpA	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	0.103	24.0%	0.0500 ng/ml
PFHxA	PFHxA	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	0.0925	5.5%	0.0818 ng/mL
PFHxPA	PFHxPA	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500 ng/mL
PFHxS	PFHxS	ng/mL	292	0.743	0.690	0.800	0.496	0.720	1.00	2.66	100%	0.0195 ng/ml
PFNA	PFNA	ng/mL	292	0.542	0.509	0.578	0.372	0.527	0.774	1.39	100%	0.0487 ng/mL
PFOA	PFOA	ng/mL	292	1.01	0.942	1.09	0.631	1.02	1.55	2.88	100%	0.0539 ng/mL
PFOS	PFOS	ng/mL	292	3.10	2.88	3.33	2.05	3.09	4.41	9.07	100%	0.316 ng/mL
PFOSA	PFOSA	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	<LOD	2.4%	0.0173 ng/mL
PFPeA	PFPeA	ng/mL	292	*	*	*	<LOD	<LOD	<LOD	0.0255	6.5%	0.0235 ng/mL
PFUnDA	PFUnDA	ng/mL	292	0.129	0.115	0.145	0.0646	0.118	0.275	0.726	81.2%	0.0481 ng/mL

Project: Measuring Analytes in Maternal Archived Samples (MAMAS) – MAMAS 3

Study Group: 300 pregnant individuals
Sample Collection Date: 2016 - 2017

Study Group Subset: Subsample 2

Unweighted Results

Chemical measured	Indicates Exposure to	Units	Number of people tested	Geometric mean	95% Confidence Interval		Selected Percentiles				Detection Frequency	Limit of Detection (LOD), wet-weight
Chemical measured	Indicates Exposure to	Units	Number of people tested	Geometric mean	Lower	Upper	25th	50th	75th	90th	Detection Frequency	Limit of Detection (LOD), wet-weight
4:2 FTS	4:2 FTS	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0372 ng/mL
5:3 FTCA	5:3 FTCA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	7.3%	0.0500 ng/mL
6:2 diPAP	6:2 diPAP	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0645 ng/mL
6:2 FTCA	6:2 FTCA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	4.2%	0.250 ng/mL
6:2 FTS	6:2 FTS	ng/mL	87	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.188 ng/mL
6:6 PFPiA	6:6 PFPiA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0429 ng/mL
6:8 PFPiA	6:8 PFPiA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	1.0%	0.198 ng/mL
7:3 FTCA	7:3 FTCA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0622 ng/mL
8:2 diPAP	8:2 diPAP	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.250 ng/mL
8:2 FTCA	8:2 FTCA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.250 ng/mL
8:2 FTS	8:2 FTS	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	2.1%	0.0500 ng/mL
8:2 FTUCA	8:2 FTUCA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0280 ng/mL
Et-PFOSA-AcOH	Et-PFOSA-AcOH	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	0.0136	11.5%	0.0131 ng/mL
Me-PFOSA-AcOH	Me-PFOSA-AcOH	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	22.9%	0.0638 ng/mL
PFBA	PFBA	ng/mL	96	0.0760	0.0697	0.0828	0.0645	0.0845	0.0990	0.117	82.3%	0.0500 ng/mL
PFBS	PFBS	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	7.3%	0.0140 ng/mL
PFDA	PFDA	ng/mL	96	0.187	0.160	0.220	0.109	0.169	0.285	0.613	99.0%	0.0542 ng/mL
PFDoA	PFDoA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	0.0741	17.7%	0.0500 ng/mL
PFDS	PFDS	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	6.3%	0.0274 ng/mL
PFHpA	PFHpA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	2.1%	0.0107 ng/mL
PFHxA	PFHxA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.108 ng/mL
PFHxPA	PFHxPA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500 ng/mL
PFHxS	PFHxS	ng/mL	96	0.416	0.366	0.473	0.272	0.386	0.606	0.951	100%	0.0472 ng/mL
PFNA	PFNA	ng/mL	96	0.406	0.360	0.457	0.263	0.426	0.564	0.830	100%	0.0767 ng/mL
PFOA	PFOA	ng/mL	96	0.892	0.783	1.02	0.604	0.895	1.29	2.00	100%	0.0539 ng/mL
PFOPA	PFOPA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0500 ng/mL
PFOS	PFOS	ng/mL	96	2.39	2.08	2.75	1.47	2.47	3.56	5.42	100%	0.316 ng/mL
PFOSA	PFOSA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	0%	0.0173 ng/mL
PFPeA	PFPeA	ng/mL	96	*	*	*	<LOD	<LOD	<LOD	<LOD	5.2%	0.0235 ng/mL
PFUnDA	PFUnDA	ng/mL	96	0.121	0.0990	0.147	0.0584	0.108	0.215	0.532	79.2%	0.0481 ng/mL

Footnotes

*Geometric mean was not calculated because the chemical was found in less than 65% of the study group

*Geometric mean was not calculated because the chemical was found in less than 65% of the study group.

# As of March 2013, PFBuS is no longer measured due to instrumental background interference.

⌂Due to the COVID-19 emergency, CARE-3 was stopped early and only 90 people completed all study steps. The results from this small non-representative sample cannot be generalized to the population of San Diego and Orange counties.

▶CARE-LA data from 425 participants were weighted, a statistical method to adjust over-represented and under-represented samples, so that the summary results adequately reflect the population of California’s Los Angeles County. Unweighted results are available to download on the California Regional Exposure Study, Los Angeles County (CARE-LA) project page.

▽CARE-2 data from 357 participants were weighted, a statistical method to adjust over-represented and under-represented samples, so that the summary results adequately reflect the population of California’s Riverside, San Bernardino, Imperial, Mono, and Inyo counties. Unweighted results are available to download on the California Regional Exposure Study, Region 2 (CARE-2) project page.

◀CARE-2 data from 358 participants were weighted, a statistical method to adjust over-represented and under-represented samples, so that the summary results adequately reflect the population of California’s Riverside, San Bernardino, Imperial, Mono, and Inyo counties. Unweighted results are available to download on the California Regional Exposure Study, Region 2 (CARE-2) project page.

○Expanded BEST data from 337 participants was weighted, a statistical method to adjust over-represented and under-represented samples, so that the summary results adequately reflect the population of California’s Central Valley. Unweighted results are available to download on the Biomonitoring Exposures Study (BEST) – 2. Expanded project page.

Explanation of Terms

95% Confidence interval for the geometric mean

A 95% confidence interval for the geometric mean (CI-GM) is a range of values between two numbers called the lower bound and upper bound. These bounds are calculated based on sample data collected from a subset of a larger population. In repeated random sampling, the CI-GMs calculated for the various samples will contain the population value of the geometric mean 95 percent of the time. If convenience sampling is used to collect sample data, the CI-GM should be interpreted with caution. This is because a convenience sample may not be representative of the larger population.

95% Confidence interval for the geometric mean - lower

95% Confidence interval for the geometric mean - upper

Adjusted for

Chemical concentrations in urine can be adjusted for urine dilution using creatinine or specific-gravity. Chemical concentrations in serum can be adjusted for lipids. In the results tables, unadjusted chemical concentrations are denoted by NA.

Below the limit of detection (<LOD)

Below the limit of detection (< LOD) means that the laboratory could not detect the chemical. This may have been because the chemical was not present at all or because it was present at such a low level that the laboratory could not measure it.

Chemical measured

The chemical that was analyzed in blood or urine samples. The chemical measured is sometimes the parent chemical and sometimes a metabolite of the parent chemical.

Detection frequency (percent detected)

The percentage of study participants with a measurable level of a chemical in their blood or urine sample.

Geometric mean

The geometric mean is an estimated middle value of a set of numbers.This is different than the average, also called the "arithmetic mean". A geometric mean is sometimes calculated when the set of numbers contains some extreme values. For example, the geometric mean of the set of numbers "1, 2, 2, 3, 4, 5, 5, 6, 10, 100" is calculated by multiplying all ten numbers together and then raising to the 1/10th power, giving 4.8. To compare, the arithmetic mean is calculated by adding all ten numbers and dividing by 10, giving 14.

In the data tables, an asterisk (*) means the geometric mean was not calculated because the chemical was found in less than 65% of the study group.

Indicates exposure to

The chemical(s) listed in this column is the chemical(s) to which a person may have been exposed through various sources (e.g., via drinking water or use of a consumer product). This chemical is commonly called the parent chemical.

Limit of detection (LOD), wet-weight

The limit of detection (LOD) is the lowest level of a chemical that the laboratory can measure in whole blood, urine or serum. The wet-weight LOD is presented as an amount of a chemical per liter of a sample (for example, microgram of a chemical per liter of urine, or µg/L). This is often the way that biomonitoring results are reported as well (for example, µg/L urine or µg/L serum). In some cases, however, biomonitoring results are presented as lipid-adjusted concentrations (µg/g lipid) or creatinine-adjusted concentrations (µg/g creatinine). For these cases, the units for the wet-weight LOD will differ from the units used to report the biomonitoring results.

Number of people tested

The number of individuals whose blood or urine samples were analyzed for a particular chemical.

Sample collection date

The time period during which blood or urine samples were collected from participants in Biomonitoring California projects or laboratory collaborations.

Selected percentiles

A range of values calculated to show the distribution of measured chemical levels. See specific percentiles below for examples.

Selected percentiles - 25th

If the 25th percentile is 0.3 µg/L, for example, this means that 25% of participants had levels less than or equal to 0.3 µg/L.

Selected percentiles - 50th

If the 50th percentile is 0.6 µg/L, for example, this means that 50% of participants had levels less than or equal to 0.6 µg/L.

Selected percentiles - 75th

If the 75th percentile is 1.2 µg/L, for example, this means that 75% of participants had levels less than or equal to 1.2 µg/L.

Selected percentiles - 90th

If the 90th percentile is 1.5 µg/L, for example, this means that 90% of participants had levels less than or equal to 1.5 µg/L.

Selected percentiles - 95th

If the 95th percentile is 1.9 µg/L, for example, this means that 95% of participants had levels less than or equal to 1.9 µg/L.

Study group

A brief description of the people who provided blood and/or urine samples for analysis in a particular study.

Units

Human biomonitoring data are commonly reported as an amount of a chemical present in a specified volume of a bodily fluid (such as blood or urine). For example, a chemical measurement expressed in units of µg/L urine tells us the number of micrograms (µg) of the chemical present per one liter (L) of urine. Using standard units allows for comparison across different studies. For more examples, see definition for: Units used by Biomonitoring California.

Unweighted Results

Unweighted results summarize the measurements collected from study participants but may not apply to a wider group of Californians.

Weighted Results

Weighted results are results that have been calculated using a statistical method that adjusts over-represented and under-represented samples. Weighted results adequately reflect a wider population in California.

Results for Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs)

Chemical Group: Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs)

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 1

Unweighted Results

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 2

Unweighted Results

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

Unweighted Results

Project: Biomonitoring Exposures Study (BEST) - 2.Expanded

Weighted Results

Project: California Regional Exposure Study, Los Angeles County (CARE-LA)

Weighted Results

Project: California Regional Exposure Study, Region 2 (CARE-2)

Weighted Results

Project: California Regional Exposure Study, Region 3 (CARE-3)

Unweighted Results

Project: California Teachers Study (CTS)

Unweighted Results

Project: Firefighter Occupational Exposures (FOX) Project

Unweighted Results

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

Unweighted Results

Project: Measuring Analytes in Maternal Archived Samples (MAMAS) – MAMAS 1

Unweighted Results

Project: Measuring Analytes in Maternal Archived Samples (MAMAS) – MAMAS 2

Unweighted Results

Project: Measuring Analytes in Maternal Archived Samples (MAMAS) – MAMAS 3

Unweighted Results

Footnotes

Explanation of Terms

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Statewide Campaigns

Gavin Newsom